DellメーカーDimension U7021の使用説明書/サービス説明書
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www .dell.com | support.dell.com Dell™ Dimension™ XPS headphone connector microphone connector USB 2.0 connectors (2) IEEE 1394 connector PCI card (4), PCI Express x1 card (1), PCI Express x16 card (1) slots serial port parallel port diagnostic lights keyboard connector USB 2.
www .dell.com | support.dell.com Notes, Notices, and Cautions NOTE: A NOTE indicates important i nformation that helps you make better use of your computer . NOTICE: A NOTICE indicates either potential da mage to hardware or loss of da ta and tells you how to avoid the problem.
Contents 3 Contents Finding Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1 Setting Up and Using Y our Computer Opening the Drive Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Changing the Front- Panel Light Color .
4 Contents Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Hibernate Mode .
Contents 5 Network Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Power Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Printer Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Contents 5 Removing and Installing Parts Before Y ou Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Recommended T ools . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 T urning Off Y our Computer . . . . . . . .
Contents 7 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Removing the Processor . . . . . . . . . . . . . . . . . . . . . . . . . 103 Installing the Processor . . . . . . . . . . . . . . . . . . . . . . . . . 106 Front Panel .
8 Contents FCC Notices (U.S. Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Class A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Class B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 FCC Identification Information .
Finding Information 9 Finding Information What Are Y ou Looking For? Find it Here • How to access tutorials an d other how to information • How to get a copy of my invoice • How to extend my warranty • How to access Dell Support on my Microsoft ® W indows ® desktop (U.
10 Finding Information www .dell.com | support.dell.com • W arranty information • Safety instructions • Regulatory information • Ergonomics information • End User License Agreement Dell™ P.
Finding Information 11 • Latest drivers for my computer • Answers to technical se rvice and support questions • Online discussions with other users and technical support • Documentation for my computer Dell Support W ebsite — support.dell.com NOTE: Select your region to view the appropriate support site.
12 Finding Information www .dell.com | support.dell.com.
Setting Up and Using Y our Computer 13 Setting Up and Using Y our Computer Opening the Drive Door.
14 Setting Up and Using Y our Computer www .dell.com | support.dell.com Changing the Front-Panel Light Color Y ou can use this ex clusive Dell™ Dimension™ XPS feature either to change the color of.
Setting Up and Using Y our Computer 15 7 Select the color you want, and press <Enter>. 8 P ress < Esc > , and press Save and Exit to save the new front- panel light color setting.
16 Setting Up and Using Y our Computer www .dell.com | support.dell.com 3 Connect the other monitor to the optional D V I adapter and connect the D VI adapter to the D VI (white) connector on the back of the computer .
Setting Up and Using Y our Computer 17 Changing the Display Settings 1 After you connect the monitor(s) or TV , turn on the computer . The Microsoft ® W indows ® desktop displays on the primary monitor . 2 Enable clone mode or extended desktop mode in the display settings.
18 Setting Up and Using Y our Computer www .dell.com | support.dell.com RAID Level 0 R AID level 0 uses a storage technique known as "d ata striping" to provide a high data access rate. Data striping is a method of writing consecutive segments, or stripes, of data sequentially across the physical drives to create a lar ge virtual drive.
Setting Up and Using Y our Computer 19 If a drive failure occurs, subsequent r ead and write operations are dir ected to the surviving drive. A replacement drive can then be r ebuilt using the data from the surviving drive.
20 Setting Up and Using Y our Computer www .dell.com | support.dell.com 5 Use the left- and right-arrow keys to highlight Save/Exit , and press <Enter> to e xit system setup and resume the boot process.
Setting Up and Using Y our Computer 21 4 Enter a R AID volume name or acce pt the default, and pr ess <Enter>. 5 Use the up- and down-arrow keys to select R AID1(Mirror) , and press <Enter>.
22 Setting Up and Using Y our Computer www .dell.com | support.dell.com Creating a RAID 0 V olume NOTE: When you perform this operation, all data on the RAID drives will be lost.
Setting Up and Using Y our Computer 23 Deleting a RAID V olume NOTE: While this procedure deletes the RAID 1 volume, it also splits the RAID 1 volume into two non- RAID hard drives with a partition, and leaves any ex isting data files intact. De leting a RAID 0 volume, however , destroy s all data on the volume.
24 Setting Up and Using Y our Computer www .dell.com | support.dell.com Migrating to a RAID 1 V olume 1 Set your computer to R AID-enabled mode (see page 19). 2 Click the Start button and point to All P rograms → Intel(R) Application Accelerator → Intel Application Accelerator to launch the Intel(R) Storage Utility .
Setting Up and Using Y our Computer 25 Rebuilding a Degrad ed RAID 1 V olume If your computer does not have a spare har d driv e, and the computer has reported a degraded R AID 1 volume, you can manua.
26 Setting Up and Using Y our Computer www .dell.com | support.dell.com 7 On the What do you want to transfer? screen, select the items you want to transfer and click Next . After the information has been copied, the Completing the Collection Phase screen appears.
Setting Up and Using Y our Computer 27 T o format CDs for storing data, to create music CDs, or to copy CDs, see the CD software that came with your computer . NOTE: Ensure that you follow all copy right laws when you create CDs. A CD player includes the following basic buttons: A D VD player includes the following basic buttons: Play .
28 Setting Up and Using Y our Computer www .dell.com | support.dell.com F or more information on playing CDs or D VDs, click Help on the CD or D VD player (if available). Adjusting the V olume NOTE: When the speakers are muted, you do not hear the CD or DVD playing.
Setting Up and Using Y our Computer 29 How to Copy a CD or DVD NOTE: If you have a DVD/CD-RW combo drive and you experience recording problems, check for available sof tware patches at the Sonic suppor t website at support.sonic.com . Currently , five D VD-writable disc formats ava ilable: DVD+R, D VD+R W , D VD-R, D VD- R W and D VD-R AM.
30 Setting Up and Using Y our Computer www .dell.com | support.dell.com Helpful T ips • Use Microsoft ® W indows ® Explorer to drag and drop file s to a CD-R or CD-R W only after you start Sonic RecordNow and open a Recor d Now project. • Y ou must use CD-Rs to burn music CDs th at you want to play in regular ster eos.
Setting Up and Using Y our Computer 31 Power Management Overview The Microsoft ® W indows ® XP power management features can r educe the amount of electricity your computer uses when it is on and you are no t using it.
32 Setting Up and Using Y our Computer www .dell.com | support.dell.com T o exit from hibernate mode , press the power button. The computer may tak e a short ti me to exit from hibernate mode.
Setting Up and Using Y our Computer 33 If you want to change the default settings for a scheme, click the drop-down menu in the T urn off monitor , T urn off hard disks , System stand by , or System hibernates field, and then select a time- out from the displayed list.
34 Setting Up and Using Y our Computer www .dell.com | support.dell.com.
Optimizing Performance 35 Optimizing Performance Hyper -Threading Hyper - Threading is an Intel ® technology that can enhance overall computer performance by allowing one physical processor to function as t wo logical processors, capable of performing certain tasks simultaneously .
36 Optimizing Performance www .dell.com | support.dell.com PCI Express Cards PCI Express is the ne xt generation technology fo r graphics cards and PCI car ds.
Solving Problems 37 Solving Problems T roubleshooting T ips F ollow these tips when you troubleshoot your computer: • If you added or removed a part befor e the prob lem started, review the installation procedur es and ensure that the part is corr ectly installed.
38 Solving Problems www .dell.com | support.dell.com CD and DVD drive problems NOTE: High-speed CD or DVD drive vibration is normal and may cause noise, which does not indicate a defect in the drive or the CD or DVD. NOTE: Because of different regions worldwide and different disc formats, not all DV D titles work in all DVD drives.
Solving Problems 39 Hard drive problems E-Mail, Modem, and Internet Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide . NOTE: Connect the modem to an analog tel ephone jack only .
40 Solving Problems www .dell.com | support.dell.com Error Messages CAUTION: Before you begin any of the proc edures in this section, fo llow the safety instructions located in the Product Information Guide . If the message is not listed, see the documentatio n for the operating system or the program that was running when the message appeared.
Solving Problems 41 IEEE 1394 Device Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide . Keyboard Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide .
42 Solving Problems www .dell.com | support.dell.com Lockups and Software Problems CAUTION: Before you begin any of the proc edures in this section, fo llow the safety instructions located in the Product Information Guide .
Solving Problems 43 A program crashes repeatedly NOTE: Software usually includes installation instructions in its documentation or on a floppy disk or CD.
44 Solving Problems www .dell.com | support.dell.com Memory Problems CAUTION: Before you begin any of the proc edures in this section, fo llow the safety instructions located in the Product Information Guide .
Solving Problems 45 Network Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide . R ESTART THE COMPUTER — 1 Simultaneously press <Ctr l><Esc> to display the Start menu.
46 Solving Problems www .dell.com | support.dell.com Power Problems CAUTION: Before you begin any of the proc edures in this section, fo llow the safety instructions located in the Product Information Guide . I F THE POWER LIGHT IS GREEN AND THE COMPUTER IS NOT RESPONDING — See "Diagnostic Lights" on page 53.
Solving Problems 47 Printer Problems CAUTION: Before you begin any of the procedures in th is section, follow the s afety instructions located in the Product Information Guide . NOTE: If you need technical assistan ce for your printer , contact the printer’ s manufacturer .
48 Solving Problems www .dell.com | support.dell.com Sound and Speaker Problems CAUTION: Before you begin any of the proc edures in this section, fo llow the safety instructions located in the Product Information Guide . No sound from speakers NOTE: The volume control in some MP3 players overrides the Windows vo lume setting.
Solving Problems 49 No sound from headphones D ISCONNECT HEADPHONES FROM THE HEADPHONE CONNECTOR — Sound from the speakers is automatically disabled when headphones are conne cted to the computer’s front-panel headphone connector .
50 Solving Problems www .dell.com | support.dell.com V ideo and Monitor Problems CAUTION: Before you begin any of the proc edures in this section, fo llow the safety instructions located in the Product Information Guide . If the screen is blank NOTE: See the monitor docume ntation for troubles hooting procedures.
Solving Problems 51 A DJUST THE W INDOWS DISPLAY SETTINGS — 1 Click the Start button, click Control P anel , and then click Appearance and Themes . 2 Click Display and click the Settings tab. 3 T ry different settings for Screen resolution and Color quality .
52 Solving Problems www .dell.com | support.dell.com.
Advanced T roubleshooting 53 Advanced T roubleshooting Diagnostic Lights CAUTION: Before you begin any of the proce dures in this section, follow the safety instructions located in the Product Information Guide .
54 Advanced T roubleshooting www .dell.com | support.dell.com Memory modules are detected, but a memory failure has occurr ed. • If you have two or more memory modules installed, remove the modules, reinstall one module (see page 77), and then restart the computer .
Advanced T roubleshooting 55 No memory modules are detected. • If you have two or more memory modules installed, remove the modules, reinstall one module (see page 77), and then restart the computer . If the computer starts normally , reinstall an additional module.
56 Advanced T roubleshooting www .dell.com | support.dell.com Dell Diagnostics CAUTION: Before you begin any of the proc edures in this section, fo llow the safety instructions located in the Product Information Guide .
Advanced T roubleshooting 57 Starting the Dell Diagnostics From Y our Hard Drive 1 T u rn on (or restart) your computer . 2 When the DELL™ logo appear s, press <F12> immediately . NOTE: If you see a message stating that no diagnostics utility partitio n has been found , run the Dell Diagnostics from your ResourceCD (see page 57).
58 Advanced T roubleshooting www .dell.com | support.dell.com Dell Diagnostics Main Menu 1 After the Dell Diagnostics loads and the Main Menu screen appears, click the button for the option you want. 2 If a problem is encountered during a test, a message appears with an error code and a description of the problem.
Advanced T roubleshooting 59 4 When the tests are completed, if you ar e runni ng the Dell Diagnostics from the ResourceCD , remove the CD. 5 Close the test screen to r eturn to the Main Menu screen. T o exit the Dell Diagnostics and restart the computer , close the Main Menu screen.
60 Advanced T roubleshooting www .dell.com | support.dell.com Windows XP 1 Click the Start button and click Control P anel . 2 Under Pick a Category , click P erformance and Maintenance . 3 Click System . 4 In the System P roperties window , click the Hardware tab.
Advanced T roubleshooting 61 3 When the InstallShield Wizard Complete window appears, remove the ResourceCD and click Fi n i s h to restart the computer . 4 When you see the W indows desktop, reinsert the ResourceCD. 5 At the W elcome Dell System Owner screen, click Next .
62 Advanced T roubleshooting www .dell.com | support.dell.com Creating a Restore Point 1 Click the Start button and click Help and Support . 2 Click System Restore .
Advanced T roubleshooting 63 3 Click Next . The System Restore screen appears and the computer r estarts. 4 After the computer restarts, click OK . Enabling Sy stem Restore If you reinstall W indows XP with less than 200 MB of free har d-disk space available, System Restore is automatically disabled.
64 Advanced T roubleshooting www .dell.com | support.dell.com 6 When prompted, click Ye s . The computer restarts. Because the computer is r estored to its original operating state, the screens that appear , such as the End User Li cense Agreement, ar e the same ones that appeared the first time the computer was turned on.
Advanced T roubleshooting 65 Reinstalling Windows XP T o reinstall W indows XP , perform all the steps in the following sections in the or der in which they are listed.
66 Advanced T roubleshooting www .dell.com | support.dell.com NOTICE: Do not press any key when the following message appears: Press any key to boot from the CD . 6 When the Regional and Language Options screen appears, select the settings for your location and click Next .
Removing and Installing Parts 67 Removing and Installing Parts Before Y ou Begin This chapter provides procedures for r emoving and installing the components in your computer .
68 Removing and Installing Parts www .dell.com | support.dell.com Before W orking Inside Y our Computer Use the following safety guidelines to help protec t your computer from potential damage and to help ensure your own personal safety .
Removing and Installing Parts 69 Front and Back V iew of the Computer Front View 2 1 3 4 1 hard-drive activity light The hard-drive light is on when the computer r eads data from or writes data to the hard drive. The light might also be on when a device such as your CD player is operating.
70 Removing and Installing Parts www .dell.com | support.dell.com Front V iew (Doors Open) 2 1 3 4 1 headphone connector Use the headphone connector to attach headphones and most kinds of speakers.
Removing and Installing Parts 71 Back Vi ew 7 11 9 2 1 3 13 12 15 16 5 17 19 8 6 14 4* 10 18 * Not present on all computers 1 processor fans (2) F or optimal cooling, two proc essor fans are provided.
72 Removing and Installing Parts www .dell.com | support.dell.com 5 D VI video connector If your monitor has a D VI connector , plug it into the D VI connector on the computer . If your monitor has a VGA connector , plug it into the VGA connector on the computer .
Removing and Installing Parts 73 Opening the Computer Cover CAUTION: Before you begin any of the procedures in this section , follow the safety instructions located in the Product Information Guide .
74 Removing and Installing Parts www .dell.com | support.dell.com Inside V i ew of Y our Computer hard drive shroud floppy drive CD/DVD drive sy stem board processor airflow shroud power supply proces.
Removing and Installing Parts 75 Sy stem Board Components hard-drive connector (PRI_IDE) battery socket (BA TTERY) SCSI LED header (SCSI LED) front-panel connector (FRONT P ANEL) front-panel light con.
76 Removing and Installing Parts www .dell.com | support.dell.com Memory Y ou can incr ease your computer memory by inst alling memory modules on the system board. Y our computer supports DDR2 memory . F or addit ional information on the type of memory supported by your computer , see "Memory" on page 115.
Removing and Installing Parts 77 NOTE: Memory purchased from Dell is co vered under your computer warranty . NOTICE: If you remove your original memory modules fr om the computer during a memory upgrade, keep them separate from any new modules that you may have, even if you purchased the new modules from Dell.
78 Removing and Installing Parts www .dell.com | support.dell.com 3 P r ess out the securing clip at each end of the memory module connector . 4 Align the notch on the bottom of the mo dule with the crossbar in the connector .
Removing and Installing Parts 79 6 Close the computer cover . NOTICE: T o connect a network cable , first plug the cable in to the network wall jack and then plug it into the computer . 7 Connect your computer and devices to el ectrical outlets, and turn them on.
80 Removing and Installing Parts www .dell.com | support.dell.com Y our Dell™ computer provides the follow ing slots for PCI and PCI Expr ess car ds: • F our PCI card slots • One PCI Express x16 car d slot • One PCI Express x1 car d slot PCI Cards If you are installing or r eplacing a card, follow the procedur es in the ne xt section.
Removing and Installing Parts 81 3 If you are installing a new car d, remove the f iller bracket to cr eate a card-slot opening. Then continue with step 5. 4 If you are r eplacing a card that is alr ead y installed in the computer , r emove the card. If necessary , disconnect any cables connected to the card.
82 Removing and Installing Parts www .dell.com | support.dell.com 8 P r ess the retention arm into place, securing the car d(s) in the computer . NOTICE: Do not route card cables over or behind the cards. Cables ro uted over the cards can prevent the computer cover from closing proper ly or cause damage to the equipment.
Removing and Installing Parts 83 5 If you are r emoving the card permanently , in stall a filler bracket in the empty car d-slot opening. If you need a filler bracket, contact Dell (see page 131). NOTE: Installing filler brackets over empty card-slot op enings is necessary to maintain FCC certification of the computer .
84 Removing and Installing Parts www .dell.com | support.dell.com Installing a PCI Express Card 1 F ollow the procedures in "Befor e Y ou Begin" on page 67.
Removing and Installing Parts 85 3 If you are installing a new car d, remove the f iller bracket to cr eate a card-slot opening. Then continue with step 5. 4 If you are r eplacing a card that is alr ead y installed in the computer , r emove the card. If necessary , disconnect any cables connected to the card.
86 Removing and Installing Parts www .dell.com | support.dell.com 8 If you replaced a car d that was already installe d in the computer and you r emoved the top of the retention mechanism, you can r einstall the top. 9 Before you lower the r etention arm, ensure that: • The tops of all cards and filler brack ets are flush with the alignment bar .
Removing and Installing Parts 87 Removing a PCI Express Card 1 F ollow the procedures in "Befor e Y ou Begin" on page 67. 2 P ress the lever on the card r etention arm and raise the retention arm. 3 If necessary , disconnect any cables connected to the card.
88 Removing and Installing Parts www .dell.com | support.dell.com Drives Y our computer supports a combination of these devices: • Up to three har d drives • One floppy drive • Up to two CD or D.
Removing and Installing Parts 89 Connecting Drive Cables When you install a drive, you connect two cables— a DC power cable and a data cable—to the back of the drive and to the system boar d. Some drives may also have an audio connector ; one end of the audio cable attaches to the dr ive connector and the other end attaches to the system board.
90 Removing and Installing Parts www .dell.com | support.dell.com Power Cable Connector Hard Drive CAUTION: Before you begin any of the proce dures in this section, follow the safety instructions located in the Product Information Guide . NOTICE: T o avoid damage to the drive, do not set it on a hard surface.
Removing and Installing Parts 91 3 Disconnect the power and hard-drive cables from the drive and from the system boar d. 4 P ress in on the tabs on each side of the drive and slide the drive up and out. Installing a Hard Drive 1 Unpack the replacement har d drive, and prepare it for installation.
92 Removing and Installing Parts www .dell.com | support.dell.com 4 Install the hard drive into the computer by ge ntly sliding the drive into place until the tabs securely click into position.
Removing and Installing Parts 93 11 Close the computer cover (see page 114). NOTICE: T o connect a network cable , first plug the cable in to the network wall jack and then plug it into the computer . 12 Connect your computer and devices to el ectrical outlets, and turn them on.
94 Removing and Installing Parts www .dell.com | support.dell.com 19 If the drive you just installed is the primary driv e, install your operating system on the hard drive. Adding a Second Hard Drive CAUTION: Before you begin any of the proce dures in this section, follow the safety instructions located in the Product Information Guide .
Removing and Installing Parts 95 7 Connect a power cable to the drive. 8 Connect the hard-drive cable to the driv e and to the system boar d (see page 75). 9 Close the computer cover (see page 114). NOTICE: T o connect a network cable, firs t plug the cable into the network device and then plug it into the computer .
96 Removing and Installing Parts www .dell.com | support.dell.com Removing a Floppy Drive 1 Disconnect the power and data cables from the back of the floppy drive.
Removing and Installing Parts 97 2 Gently slide the drive into place until the tabs securely click into position. drive screws (4) bracket rails (2) data cable power cable tabs (2) floppy drive.
98 Removing and Installing Parts www .dell.com | support.dell.com 3 Attach the power and data cables to the floppy drive. 4 Connect the other end of the data cable to the connector labled FLOPPY on the system board (see page 75). 5 Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.
Removing and Installing Parts 99 3 P r ess inward on the two tabs on the sides of th e drive, and then slide the drive upwar d and remove it from the drive bay . Installing a CD/DVD Drive 1 If you are installing a new drive, unpack the drive and pr epare it for installation.
100 Removing and Installing Parts www .dell.com | support.dell.com 3 If you are installing a r eplacement drive and th e new drive does not have the bracket rails attached, remove the rails from the old drive by r emoving the tw o screws that secur e each rail to the drive.
Removing and Installing Parts 101 6 Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents. 7 Close the computer cover (see page 114). NOTICE: T o connect a network cable , first plug the cable in to the network wall jack and then plug it into the computer .
102 Removing and Installing Parts www .dell.com | support.dell.com Processor Airflow Shroud Removing the Processor Airflow Shroud CAUTION: Before you perform this pr ocedure, follow the safety instructions located in the Product Information Guide .
Removing and Installing Parts 103 Installing the Processor Airflow Shroud 1 Attach both fan power cables to the connectors on the system board. 2 Align the anchor tabs with the securing slots. 3 Gently press the shroud until the anchor tabs snap secur ely into place.
104 Removing and Installing Parts www .dell.com | support.dell.com CAUTION: The heat sink can get very hot during normal operation. Be su re that the heat sink has had sufficient time to cool b efore you touch it. 5 Remove the heat sink: a Remove the retention module clips.
Removing and Installing Parts 105 b On the retention base locate the tab opposite the power supply . P ress on the retention base tab until the heat sink pops up slightly . c P ress out on the second retention tab while lifting the heat sink up and out of the retention base.
106 Removing and Installing Parts www .dell.com | support.dell.com 7 Open the processor cover . 8 Remove the processor from the socket. Leave the release lever extended in the r elease position so that the socket is ready for the new processor .
Removing and Installing Parts 107 3 Align the pin-1 corners of the processor and socket. NOTICE: Socket pins are delicate. T o avoid damage, en sure that the pr ocessor is aligned properly with the socket, and do not use excessive force when you install the pr ocess.
108 Removing and Installing Parts www .dell.com | support.dell.com 7 Install the heat sink: a Slide one end of the heat sink under the retention tab. b P ull out the other r etention tab and lower the he at sink until it fits securely in the base. NOTICE: Ensure the heat sink is co rrectly seated and secure.
Removing and Installing Parts 109 4 Close the computer cover halfway and pull the front panel away from the computer . Replacing the Front Panel T o replace the front panel, perform the r emoval procedure in r everse.
110 Removing and Installing Parts www .dell.com | support.dell.com Drive Door CAUTION: Before you begin any of the proc edures in this section, fo llow the safety instructions located in the Product Information Guide . Removing the Drive Door 1 Open the drive door .
Removing and Installing Parts 111 2 Unsnap the top bracket hinge and pull the to p of the drive door outwar d, away from the computer . 3 Lift the bottom bracket hinge away from the computer .
112 Removing and Installing Parts www .dell.com | support.dell.com If the drive door is open and it is opened too far , instead of breaking away from the computer in one piece, the drive door may disassemble into several smaller pieces. If the drive door disassembles: 1 If necessary , reattach the door hinges to the d oor brack et.
Removing and Installing Parts 113 Battery Replacing the Battery CAUTION: Before you begin any of the procedures in this section , follow the safety instructions located in the Product Information Guide .
114 Removing and Installing Parts www .dell.com | support.dell.com NOTICE: T o connect a network cable, first plug the cable into the network device and then plug it into the computer . 7 Connect your computer and devices to elec trical outlets, and turn them on.
Appendix 115 Appendix Specifications Processor P rocessor type Intel ® Pe n t i u m ® 4 with HT T echnology NOTE: Not all Pentium 4 processors support Hyper -Threading technology .
116 Appendix www .dell.com | support.dell.com Expansion Bus Bus type PCI 2.3 PCI Express x1 and x16 Bus speed PCI: 33 MHz PCI Express: x1 slot bidirectional speed - 500 MB/s x16 slot bidirectional spe.
Appendix 117 Connectors External connectors: Serial 9-pin connector; 16550C-compatible P arallel 25-hole connector (bidirectional) IEEE 1394 front-panel 6-pin serial connector Video 15-hole connector Network adapter RJ45 connector PS/2 (keyboar d and mouse) two 6-pin mini-DIN USB two front-panel and six back-p anel USB 2.
118 Appendix www .dell.com | support.dell.com Link integrity light (on integrated network adapter) green light — A good connection e xists between a 10-Mbps network and the computer . orange light — A good connection exists between a 100-Mbps network and the computer .
Appendix 119 Sy stem Setup Overview Use system setup as follows: • T o change the system configuration information after you add, change, or remove any hardwar e in your computer • T o set or chan.
120 Appendix www .dell.com | support.dell.com Entering Sy stem Setup 1 T urn on (or restart) your computer . 2 When the blue DELL™ logo appears, press <F2> immediately . If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft ® W indows ® desktop.
Appendix 121 Sy stem Setup Options NOTE: Depending on your comp uter and installed devices, the item s listed in this section may not appear , or may not appea r exactly as listed. System System Info Lists system information such as the computer name, the BIOS version number and date, system tags, and other system-specific information.
122 Appendix www .dell.com | support.dell.com LPT Port Mode Identifies and defines the parallel port settings. Y ou can set the parallel port to Off, AT , PS/2 , EPP , or ECP . LPT Port Address Identifies the address for the parallel port. LPT Port DMA Identifies and defines the parallel port DMA settings.
Appendix 123 Power Management AC Recovery Determines what happens when AC power is r e stored to the computer . Auto Power On Sets the computer to automa tically turn on. Choices ar e every day or every Monday through F riday . The default setting is Off .
124 Appendix www .dell.com | support.dell.com Boot Sequence This feature allows you to change the boot sequence for devices. Option Settings • Diskette Drive — The computer attempts to boot from the floppy drive.
Appendix 125 3 When F2 = Setup, F12 = Boot Menu appears in the upper -right corner of the screen, press <F12>. If you wait too long and the operating system lo go appears, continue to wait until you see the Microsoft W indows desktop. Then shut down your computer (see page 67) and try again.
126 Appendix www .dell.com | support.dell.com Clearing Forgotten Passwords CAUTION: Before you begin any of the proce dures in this section, follow the safety instructions located in the Product Information Guide . 1 F ollow the procedures in "Befor e Y ou Begin" on page 67.
Appendix 127 NOTICE: T o connect a network cable , first plug the cable in to the network wall jack and then plug it into the computer . 11 Connect your computer and devices to el ectrical outlets, and turn them on.
128 Appendix www .dell.com | support.dell.com Mouse If your screen cursor skips or moves abnormally , clean the mouse. T o clean a non-optical mouse: 1 T urn the retainer ring on the underside of your mouse counterclockwise, and then remove the ball. 2 W ipe the ball with a clean, lint-free cloth.
Appendix 129 Dell T echnical Support Policy (U.S. Only) T echnician-assisted technical support requires th e cooperation and participation of the customer in the troubleshooting process and provides f.
130 Appendix www .dell.com | support.dell.com Once you have determined your system’s FCC cl assification, read the appropriate FCC notice. Note that FCC regulations provide that changes or modifications not e xpressly approved by Dell could void your authority to operate this equipment.
Appendix 131 FCC Identification Information The following information is provided on the de vice or devices covered in this document in compliance with FCC regulations: • Model number: WHL Company name: Dell Inc.
132 Appendix www .dell.com | support.dell.com Argentina (Buenos Aires) International Access Code: 00 Country Code: 54 City Code: 11 W ebsite: www .dell.com.ar E-mail: us_latin_services@dell.com E-mail for desktop and portable computers: la-techsupport@dell.
Appendix 133 Barbados General Support 1-800-534-3066 Belgium (Brussels) International Access Code: 00 Country Code: 32 City Code: 2 W ebsite: support.euro.dell.com E-mail for F rench Speaking Customers: support.euro .dell.com/be/fr/emaildell/ T echnical Support 02 481 92 88 T echnical Support F ax 02 481 92 95 Customer Care 02 713 15 .
134 Appendix www .dell.com | support.dell.com Chile (Santiago) Country Code: 56 City Code: 2 Sales, Customer Support, and T echnical Support toll-free: 1230-020-4823 China (Xiamen) Country Code: 86 City Code: 592 T echnical Support website: support.dell.
Appendix 135 Czech Republic (P rague) International Access Code: 00 Country Code: 420 W ebsite: support.euro.dell.com E-mail: czech_dell@dell.com T echnical Support 22537 2727 Customer Care 22537 2707 Fa x 22537 2714 T ech F ax 22537 2728 Switchboard 22537 2711 Denmark (Copenhagen) International Access Code: 00 Country Code: 45 W ebsite: support.
136 Appendix www .dell.com | support.dell.com F rance (P aris) (Montpellier) International Access Code: 00 Country Code: 33 City Codes: (1) (4) W ebsite: support.
Appendix 137 Greece International Access Code: 00 Country Code: 30 W ebsite: support.euro.dell.com E-mail: support.euro .dell.com/gr/en/emaildell/ T echnical Support 00800-44 14 95 18 Gold Service T e.
138 Appendix www .dell.com | support.dell.com Ireland (Cherrywood) International Access Code: 16 Country Code: 353 City Code: 1 W ebsite: support.euro.dell.com E-mail: dell_direct_support@dell.com T echnical Support 1850 543 543 U.K. T echnical Support (dial within U.
Appendix 139 Japan (Kawasaki) International Access Code: 001 Country Code: 81 City Code: 44 W ebsite: support.jp.dell.com T echnical Support (servers) toll-free: 0120-198-498 T echnical Support outsid.
140 Appendix www .dell.com | support.dell.com Latin America Customer T echnical Support (Austin, T exas, U.S.A.) 512 728-4093 Customer Service (Austin, T exas, U.S.A.) 512 728-3619 F ax (T echnical Support and Customer Service) (Austin, T exas, U.S.A.
Appendix 141 Mexico International Access Code: 00 Country Code: 52 Customer T echnical Support 001-877-384-8979 or 001-877-269-3383 Sales 50-81-8800 or 01-800-888-3355 Customer Service 001-877-384-897.
142 Appendix www .dell.com | support.dell.com Norway (L ysaker) International Access Code: 00 Country Code: 47 W ebsite: support.euro.dell.com E-mail: http://support.
Appendix 143 Singapore (Singapore) International Access Code: 005 Country Code: 65 W ebsite: support.ap.dell.com T echnical Support (Dimension, Inspiron, and Electronics and Accessories) toll-free: 18.
144 Appendix www .dell.com | support.dell.com Spain (Madrid) International Access Code: 00 Country Code: 34 City Code: 91 W ebsite: support.euro.dell.com E-mail: support.
Appendix 145 Ta i w a n International Access Code: 002 Country Code: 886 W ebsite: support.ap.dell.com E-mail: ap_support@dell.com T echnical Support (OptiPlex, Latitude, Inspiron, Dimension, and Elec.
146 Appendix www .dell.com | support.dell.com U.K. (Bracknell) International Access Code: 00 Country Code: 44 City Code: 1344 W ebsite: support.euro.dell.com Customer Care website: support.euro .dell.com/uk/en/ECare/Form/Home.asp E-mail: dell_direct_support@dell.
Appendix 147 U.S.A. (Austin, T exas) International Access Code: 011 Country Code: 1 Automated Or der-Status Service toll-free: 1-800-433-9014 AutoT ech (portable and desktop computers) toll-free: 1-80.
148 Appendix www .dell.com | support.dell.com.
Index 149 Index A audio . See sound B badge color , 1 4 battery problems, 3 7 replacing, 1 1 3 BIOS, 119 boot sequence, 124 c h a n g i n g , 124-125 option settings, 1 2 4 booting to a USB device, 1 .
150 Index 150 Index diagnostics Dell, 5 6 lights, 5 3 display . See monitor documentation Dell Solution Center , 9 End User License Agreement, 1 0 ergonomics, 1 0 F inding Information, 9 online, 1 1 P.
Index 151 K key b o a rd connector , 7 2 problems, 4 1 L labels Microsoft W indows, 1 0 Service T ag, 1 0 lights back of computer , 5 3 diagnostic, 5 3 hard-drive activity , 6 9 M memory 4-GB configur.
152 Index 152 Index problems battery , 3 7 blue screen, 4 3 CD drive, 3 8 CD-R W drive, 3 8 computer crashes, 4 2 - 4 3 computer stops re sponding, 4 2 Dell Diagnostics, 5 6 diagnostic lights, 5 3 dri.
Index 153 System Restore, 61 system setup, 119 entering, 1 2 0 options, 1 2 1 screens, 1 2 0 T technical support p o l i c y , 127 transferring information to a new computer , 26 troubleshooting Dell .
154 Index 154 Index.
デバイスDell Dimension U7021の購入後に(又は購入する前であっても)重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります:
Dell Dimension U7021をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはDell Dimension U7021の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Dell Dimension U7021の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Dell Dimension U7021で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Dell Dimension U7021を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はDell Dimension U7021の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Dell Dimension U7021に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちDell Dimension U7021デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。