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Dell™ OptiPlex™ 755 Quick Reference Guide Models DCTR, DCNE, DCSM, and DCCY w w w . d e l l . c o m | s u p p o r t . d e l l . c o m...
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IBM is a registered trademark of International Business Machines Corporation; Bluetooth is a trademark owned by Bluetooth SIG, Inc. and is used by Dell Inc. under license. ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency. As an ENERGY STAR partner, Dell Inc.
You can use the media to reinstall drivers (see "Reinstalling Drivers and Utilities" on page 79), to run the Dell Diagnostics (see "Dell Diagnostics" on page 61). Readme files may be included on your media to provide last-minute updates...
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Find It Here • How to set up my computer Owner’s Manual NOTE: • How to run the Dell Diagnostics This document may be optional and may not ship with your computer. • Error codes and diagnostic lights • Tools and utilities •...
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These labels are located on your computer. • Use the Service Tag to identify your computer when you use support.dell.com or contact support. • Enter the Express Service Code to direct your call when contacting support. NOTE: As an increased security measure,...
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• Service and support — Service call status and support history, service contract, online discussions with technical support • Dell Technical Update Service — Proactive e-mail notification of software and hardware updates for your computer • Reference — Computer documentation,...
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What Are You Looking For? Find It Here • How to use Windows XP Windows Help and Support Center To access Windows Help and Support: • How to work with programs and files • In Windows XP, click Start and click •...
What Are You Looking For? Find It Here After you reinstall your operating system, use the Drivers and Utilities media to reinstall drivers for the devices that came with your computer. Your operating system product key label is located on your computer. NOTE: The color of your CD varies based on the operating system you ordered.
3 Connect the monitor. Align and gently insert the monitor cable to avoid bending connector pins. Tighten the thumbscrews on the cable connectors. NOTE: Some monitors have the video connector underneath the back of the screen. See the documentation that came with your monitor for its connector locations.
You have performed the steps in "Turning Off Your Computer" on page 13 and "Mini Tower Computer" on page 16. • You have read the safety information in your Dell™ Product Information Guide. • A component can be replaced by performing the removal procedure in reverse order.
Hold a component such as a processor by its edges, not by its pins. NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty. NOTICE: When you disconnect a cable, pull on its connector or on its strain-relief loop, not on the cable itself.
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CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. 6 Remove the computer cover. • For a mini tower computer, see "Removing the Computer Cover" on page 22. • For a desktop computer, see "Removing the Computer Cover" on page 32.
Mini Tower Computer System Views Front View 5.25-inch drive Can contain an optical drive. Insert a CD or DVD (if supported) into this drive. 5.25-inch drive Can contain an optical drive. Insert a CD or DVD (if supported) into this drive. Quick Reference Guide...
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3.5-inch drive Can contain an optional floppy drive or optional media card reader. USB 2.0 Use the front USB connectors for devices that you connect connectors (2) occasionally, such as joysticks or cameras, or for bootable USB devices (see your online User’s Guide for more information on booting to a USB device).
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power light The power light illuminates and blinks or remains solid to indicate different operating modes: • No light — The computer is turned off. • Steady green — The computer is in a normal operating state. • Blinking green — The computer is in a power-saving mode •...
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Back View 1 cover-release This latch allows you to open the computer cover. latch 2 padlock ring Insert a padlock to lock the computer cover. Quick Reference Guide...
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3 voltage selection Your computer is equipped with a manual voltage-selection switch switch. To help avoid damaging a computer with a manual voltage-selection switch, set the switch for the voltage that most closely matches the AC power available in your location.
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2 link integrity light • Green — A good connection exists between a 10-Mbps network and the computer. • Orange — A good connection exists between a 100-Mbps network and the computer. • Yellow — A good connection exists between a 1-Gbps (or 1000-Mbps) network and the computer.
8 video connector Plug the cable from your VGA-compatible monitor into the blue connector. NOTE: If you purchased an optional graphics card, this connector will be covered by a cap. Connect your monitor to the connector on the graphics card. Do not remove the cap. NOTE: If you are using a graphics card that supports dual monitors, use the y-cable that came with your computer.
Inside Your Computer CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before removing the computer cover. NOTICE: Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables from the system board.
Jumper Setting Description RTCRST The real-time clock has not been reset. The real-time clock is being reset (jumpered temporarily). jumpered unjumpered Desktop Computer System Views Front View USB 2.0 Use the front USB connectors for devices that you connect connectors (2) occasionally, such as joysticks or cameras, or for bootable USB devices (see "System Setup"...
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If your operating system has ACPI enabled, when you press the power button the computer will perform an operating system shutdown. Dell badge This badge can be rotated to match the orientation of your computer. To rotate, place fingers around the outside of the badge, press firmly, and turn the badge.
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headphone Use the headphone connector to attach headphones and connector most kinds of speakers. microphone Use the microphone connector to attach a microphone. connector 3.5-inch drive Can contain an optional floppy drive, second hard drive, or optional media card reader. 5.25-inch drive Can contain an optical drive.
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4 voltage selection Your computer is equipped with a manual voltage selection switch switch. To help avoid damaging a computer with a manual voltage selection switch, set the switch for the voltage that most closely matches the AC power available in your location.
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2 link integrity light • Green — A good connection exists between a 10-Mbps network and the computer. • Orange — A good connection exists between a 100-Mbps network and the computer. • Yellow — A good connection exists between a 1-Gbps (or 1000-Mbps) network and the computer.
8 video connector Plug the cable from your VGA-compatible monitor into the blue connector. NOTE: If you purchased an optional graphics card, this connector will be covered by a cap. Connect your monitor to the connector on the graphics card. Do not remove the cap. NOTE: If you are using a graphics card that supports dual monitors, use the y-cable that came with your computer.
security cable slot cover release latch padlock ring Inside Your Computer CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.
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drive bays (media card reader power supply or floppy drive, optical drive and hard drive) optional chassis-intrusion system board switch card slots heat sink assembly front I/O panel Quick Reference Guide...
Jumper Setting Description RTCRST The real-time clock has not been reset. The real-time clock is being reset (jumpered temporarily). jumpered unjumpered Small Form Factor Computer System Views Front View USB 2.0 Use the front USB connectors for devices that you connect connectors (2) occasionally, such as joysticks or cameras, or for bootable USB devices (see "System Setup"...
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If your operating system has ACPI enabled, when you press the power button the computer will perform an operating system shutdown. Dell badge Can be rotated to match the orientation of your computer. To rotate, place fingers around the outside of the badge, press firmly, and turn the badge.
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"Power Management for Windows XP and Vista" in the User’s Guide. See "Dell Diagnostics" on page 61 for a description of light codes that can help you troubleshoot problems with your computer.
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Back View 1 card slots (2) Access connectors for any installed PCI cards, PCI Express cards, PS/2, eSATA, and so on. 2 back panel Plug serial, USB, and other devices into the appropriate connectors connectors (see "Back Panel Connectors" on page 41). 3 power connector Insert the power cable.
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Back Panel Connectors 1 parallel connector Connect a parallel device, such as a printer, to the parallel connector. If you have a USB printer, plug it into a USB connector. NOTE: The integrated parallel connector is automatically disabled if the computer detects an installed card containing a parallel connector configured to the same address.
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3 network adapter To attach your computer to a network or broadband device, connector connect one end of a network cable to either a network jack or your network or broadband device. Connect the other end of the network cable to the network adapter connector on the back panel of your computer.
8 video connector Plug the cable from your VGA-compatible monitor into the blue connector. NOTE: If you purchased an optional graphics card, this connector will be covered by a cap. Connect your monitor to the connector on the graphics card. Do not remove the cap. NOTE: If you are using a graphics card that supports dual monitors, use the y-cable that came with your computer.
security cable slot cover release latch computer cover Inside Your Computer CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.
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drive-release latch optical drive power supply hard drive system board heat sink assembly Quick Reference Guide...
NOTE: If you want to orient your computer under a desk top or on a wall surface, use the optional wall-mount bracket. contact Dell (see "Contacting Dell" in the User’s Guide). To order this bracket Front View Quick Reference Guide...
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1 USB connectors Use the front USB connectors for devices that you connect occasionally, such as joysticks or cameras, or for bootable USB devices (see "System Setup" in the User’s Guide for more information about booting to a USB device). It is recommended that you use the back USB connectors for devices that typically remain connected, such as printers and keyboards.
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8 hard drive access The hard drive access light is on when the computer reads light data from or writes data to the hard drive. The light might also be on when devices such as your CD player are operating. 9 vents The vents help prevent your computer from overheating.
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Back View diagnostic lights See "Diagnostic Lights" on page 66 for a description of light codes that can help you troubleshoot problems with your computer. computer cover release Rotate this knob in a clockwise direction to remove knob the cover. back panel connectors See "Back Panel Connectors"...
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Back Panel Connectors parallel Connect a parallel device, such as a printer, to the parallel connector connector. If you have a USB printer, plug it into a USB connector. link integrity • Green — A good connection exists between a 10-Mbps light network and the computer.
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network activity The amber light flashes when the computer is transmitting light or receiving network data. A high volume of network traffic may make this light appear to be in a steady "on" state. line-out Use the green line-out connector to attach an amplified connector speaker set.
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cable adapter VGA connector monitor cable Connecting Two Monitors cable adapter Use the cable adapter to connect a VGA monitor and a DVI monitor to the DVI-I connector on the back panel. Quick Reference Guide...
When you connect two monitors, the video driver will detect this connection and activate the multimonitor functionality. Removing the Computer Cover CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer’s electronic...
release knob Inside Your Computer CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To avoid electrical shock, always unplug your computer from the AC power adapter before removing the cover. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer’s electronic...
fan shroud/heat sink assembly speaker (optional) memory modules (2) hard drive security cable slot chassis intrusion switch Cable Cover (Optional) Attaching the Cable Cover 1 Ensure that all external device cables are threaded through the hole in the cable cover. 2 Connect all device cables to the connectors on the back of the computer.
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cable cover security cable slot Removing the Cable Cover 1 If a security device is installed in the security cable slot, remove the device. release button 2 Slide the release button, grasp the cable cover, and slide the cover sideways as shown until it stops, and then lift the cable cover up and away.
1 fan connector (FAN_FRONT) password jumper (PSWD) 2 internal speaker connector hard drive fan connector (FAN_HDD) (INT_SPKR) 3 system board speaker (BEEP) 10 clear CMOS jumper (RTCRST) 4 channel B memory connector 11 hard drive power connector (SATA_PWR) (DIMM_2) 5 channel A memory connector 12 fan connector (FAN_REAR) (DIMM_1) 6 SATA data cable connector...
Solving Problems Dell provides a number of tools to help you if your computer does not perform as expected. For the latest troubleshooting information available for your computer, see the Dell Support website at support.dell.com. If computer problems occur that require help from Dell, write a detailed...
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Start the Dell Diagnostics from either your hard drive or from the Drivers and Utilities media (an optional CD). See "Starting the Dell Diagnostics From Your Hard Drive" on page 62 or "Starting the Dell Diagnostics From the Drivers and Utilities CD (Optional)" on page 63 for more information.
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6 Type 1 to start the Drivers and Utilities CD menu. 7 Type 2 to start the Dell Diagnostics. 8 Select Run the 32 Bit Dell Diagnostics from the numbered list. If multiple versions are listed, select the version appropriate for your computer.
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The Service Tag for your computer is located at the top of each test screen. If you contact Dell, technical support will ask for your Service Tag. Your computer’s Service Tag is listed in the System Info option in system setup. See "System Setup" in the User’s Guide for more information.
4 When the tests are completed, if you are running the Dell Diagnostics from the Drivers and Utilities CD, remove the CD. 5 When the tests are complete, close Close the test screen to return to the Main Menu screen. To exit the Dell Diagnostics and restart the computer, close the Main Menu screen.
POST contact Dell for technical assistance (see "Contacting Dell" in the User’s Guide). Diagnostic Lights CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
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The diagnostic lights are not lit after the system successfully • If the problem persists, boots to the operating system. contact Dell (see "Contacting Dell" in the User’s Guide). A possible processor failure has • Reseat the processor (see occurred. Processor information for your system).
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• If the problem persists, contact Dell (see "Contacting Dell" in the User’s Guide). A possible floppy drive or hard Reseat all power and data cables. drive failure has occurred. A possible USB failure has Reinstall all USB devices and occurred.
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(see the specifications for your system). • If the problem persists, contact Dell (see "Contacting Dell" in the User’s Guide). A possible expansion card failure Determine if a conflict exists has occurred. by removing an expansion card...
Reseating the memory modules may correct the following beep code errors. If the problem persists, contact Dell (see "Contacting Dell" in the User’s Guide) for instructions on obtaining technical assistance.
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1-3-1 through Memory not being properly identified or used 2-4-4 4-3-1 Memory failure above address 0FFFFh If you experience any of the following beep code errors, see "Contacting Dell" for instructions on obtaining technical assistance. in the User’s Guide Code Cause...
Make regular backups of your data files. System Restore does not monitor your data files or recover them. NOTE: The procedures in this document were written for the Windows default view, so they may not apply if you set your Dell™ computer to the Windows Classic view. Quick Reference Guide...
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Starting System Restore Windows XP: NOTICE: Before you restore the computer to an earlier operating state, save and close any open files and exit any open programs. Do not alter, open, or delete any files or programs until the system restoration is complete. 1 Click Start→...
If possible, back up the data before using these options. Use PC Restore or Dell Factory Image Restore only if System Restore did not resolve your operating system problem.
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NOTICE: Removing Dell PC Restore from the hard drive permanently deletes the PC Restore utility from your computer. After you have removed Dell PC Restore, you will not be able to use it to restore your computer operating system. Dell PC Restore enables you to restore your hard drive to the operating state it was in when you purchased your computer.
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7 Click Finish to close the PC Restore Removal window and restart the computer. Windows Vista: Dell Factory Image Restore 1 Turn on the computer. When the Dell logo appears, press <F8> several times to access the Vista Advanced Boot Options Window. 2 Select Repair Your Computer.
6 Click Next. The Confirm Data Deletion screen appears. NOTICE: If you do not want to proceed with Factory Image Restore, click Cancel. 7 Click the checkbox to confirm that you want to continue reformatting the hard drive and restoring the system software to the factory condition, then click Next.
Reinstalling Drivers and Utilities NOTICE: The Dell Support website at support.dell.com and your Drivers and Utilities media provide approved drivers for Dell™ computers. If you install drivers obtained from other sources, your computer might not work correctly. Using Windows Device Driver Rollback...
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3 Right-click the device for which the new driver was installed and click Properties. 4 Click the Drivers tab→ Roll Back Driver. If Device Driver Rollback does not resolve the problem, then use System Restore (see "Restoring Your Operating System" on page 73) to return your computer to the operating state that existed before you installed the new driver.
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5 Click the Driver tab→ Update Driver→ Browse my computer for driver software. 6 Click Browse and browse to the location to which you previously copied the driver files. 7 When the name of the appropriate driver appears, click the name of the driver→...
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installing parts PC Restore, 75 before you begin, 13, 61 power recommended tools, 13 light, 28, 39 turning off your computer, 13 power button light, 65 problems beep codes, 70 diagnostic lights, 65-66 labels restore to previous state, 73 Microsoft Windows, 7 Product Information Guide, 6 Service Tag, 7 lights...
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troubleshooting diagnostic lights, 65-66 Help and Support Center, 9 restore to previous state, 73 User’s Guide, 6 warranty information, 6 Windows Vista Factory Image Restore, 75 System Restore, 73 Windows XP Device Driver Rollback, 79 Help and Support Center, 9 PC Restore, 75 reinstalling, 9 System Restore, 73...
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• メモ • Dell Diagnostics • • • • • メモ support.jp.dell.com 製品情報ガイド • Dell™ • • • ユーザーズガイド • Dell™ OptiPlex™ Microsoft Windows • → Start Help • → Support • Dell User and System Guides → System Guides...
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® サービスタグおよび • Microsoft ® ライセンス Windows • Microsoft Windows support.jp.dell.com • • メモ Microsoft Windows デルサポートサイト • — — Q&A support.jp.dell.com メモ • — • — • Dell Update Service — • — • —...
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• DSS — support.jp.dell.com メモ : support.jp.dell.com Dell ヘルプとサポートセンター • Windows XP Windows Windows • • スタート • Windows XP ヘルプとサポート • Windows Vista™ Windows Vista Help and Support オペレーティングシステムメディア • メモ...
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Drivers and Utilities Dell Diagnostics Dell Diagnostics Drivers and Utilities CD Dell Diagnostics ハードドライブから (診断)プログラムをスタートする場合 Dell Diagnostics Dell Diagnostics メモ DELL™ <F12> メモ 診断 見 知 Drivers and Utilities CD Dell 診断 Diagnostics Drivers and Utilities CD Drivers and Utilities ®...
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指 従 起 SATA CD-ROM Device <Enter> SATA CD-ROM Device Boot from CD-ROM Drivers and Utilities CD Dell Diagnostics Run the 32 Bit Dell Diagnostics メインメニュー Dell Diagnostics Dell Diagnostics (診断)プログラムのメインメニュー Dell Diagnostics Dell Diagnostics Main Menu Express Test ~...
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Custom Test Symptom Tree Results 結果 発 表 Errors 検 明 表 Help 明 件 Configuration 選択 構成 表 Dell Diagnostics 各 部 構成情報 得 画 左 表 覧 名 名 表 限 せ Parameters Drivers and Utilities CD Dell Diagnostics...
お使いのオペレーティングシステムの復元 • • Symantec Dell PC Windows XP Dell Factory Image Restore Windows Vista Dell PC Dell Factory Image Restore • システムの復元 Microsoft Windows Microsoft Windows 注意 期 復元 監視 復元 メモ 順 ォ Windows Dell™ Windows...
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システムの復元の開始 Windows XP 注意 以 状態 復元 復元 完 変更 削除 スタート → すべてのプログラム → アクセサリ → システムツール → システ ムの復元 コンピュータを以前の状態に復元する 復元ポイントの作成 次へ Windows Vista Start System Restore <Enter> : User Account Control メモ 管 者 管 者 Continue 管...
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Windows XP 200 MB Windows XP スタート → コントロールパネル → パフォーマンスとメンテナンス → シス テム システムの復元 すべてのドライブでシステムの復元 を無効にする リストアおよび の使い方 Dell™ PC Dell Factory Image Restore 注意 ハ Dell PC Dell Factory Image Restore 完全 削除 元 届 削除 復元 題 解決...
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: リストア Windows XP Dell PC www.dell.com <Ctrl><F11> <Ctrl><F11> 注意 以上進 再起動 復元 確認 終了 メモ 終了 完全 再起 はい 次へ システムの復元 注意 ハ 永久 削除 Dell PC 削除 除 Dell PC 復元...
Next Confirm Data Deletion 注意 以上進 Factory Image Restore Cancel Next Finish メディアの使い方 Drivers and Utilities 注意 Drivers and Utilities 収録 Microsoft Windows • • • ドライバの識別 ® ® Microsoft Windows スタート → コントロールパネル 作業する分野を選びます パフォーマンスとメンテナンス システム システムプロパティ ハードウェア デバイスマネージャ...
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→ Properties Device Manager メモ User Account Control 管 者 Continue 管 者 管 者 ドライバとユーティリティの再インストール 注意 support.jp.dell.com Drivers and 承 提供 Utilities Dell™ 媒体 デバイスドライバのロールバックの使い方 Windows Windows Windows XP スタート → マイコンピュータ → プロパティ → ハードウェア → デバイスマ ネージャ...
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Properties → Drivers Roll Back Driver ドライバの手動再インストール Windows XP スタート → マイコンピュータ → プロパティ → ハードウェア → デバイスマ ネージャ オーディオ ビデオ ドライバ → ドライバの更新 一覧または特定の場所からインストールする(詳細設定)→ 次へ 参照 次へ 完了 Windows Vista Windows Vista Computer → Properties Device Manager メモ User Account Control 管...
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→ → Driver Update Driver Browse my computer for driver software Browse → → Next Finish...
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索引 あ , 94 え Diagnostics , 154 , 154 , 148, 150 Factory Image Restore , 159, お , 94 CD , 94 , 159 か Windows Vista , 117, 127 Factory Image Restore , 159 , 107 , 157 Windows XP , 159 こ...