Dell 650 manuale d’uso

DellPrecision™Workstation650andDellPrecisionWorkstation450 Service Manual Information in this document is subject to change without notice. © 2002DellComputerCorporation.Allrightsreserved. Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly [...]

Back to Contents Page Battery DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual A coin - cell battery maintains computer configuration, date, and time information. The battery can last several years. The battery may need replacing if you have repeatedly reset the time and date information after [...]

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Back to Contents Page Before You Begin DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Recommended Tools  Precautionary Measures  Protecting Against Electrostatic Discharge Thissectionprovidesproceduresforremovingandreplacingthecomponents,assemb[...]

l When transporting a sensitive component, first place it in an antistatic container or packaging. l Handle all sensitive components in a static - safe area. If possible, use antistatic floor pads and workbench pads. Back to Contents Page [...]

Back to Contents Page Cards DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Installing a Card  Removing a Card YourDell™computerprovidesslotsforPCI/PCI - X and AGP cards. For more information, see "Specifications" in your User's Guide or the syst[...]

6.  Before you lower the retention arm, ensure that: l The tops of all cards and filler brackets are flush with the alignment bar. l The notch in the top of the card or filler bracket fits around the alignment guide. Press the arm into place, securing the card(s) in the computer. 7.  If you are replacing an AGP card, align the AGP card guide [...]

8.  Connect any cables that should be attached to the card. See the documentation for the card for information about the card's cable connections. 9.  Close the computer cover , reconnect the computer and devices to electrical outlets, and turn them on. 10.  If you installed a sound card: a.  Enter system setup, select Integrated D[...]

3.  If necessary, disconnect any cables connected to the card. 4.  Grasp the card by its top corners, and ease it out of its connector. 5.  If you are removing the card permanently, install a filler bracket in the empty card - slot opening. If you need a filler bracket, contact Dell. 6.  Lower the retention arm and press it into place, [...]

Back to Contents Page Chassis Intrusion Switch DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Removing the Chassis Intrusion Switch  Replacing the Chassis Intrusion Switch Removing the Chassis Intrusion Switch 1.  Remove the front panel . 2.  Disconnect the chassis - intrus[...]

Replacing the Chassis Intrusion Switch To replace the chassis intrusion switch, perform the removal procedure in reverse.  Back to Contents Page [...]

Back to Contents Page Control Panel DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Control Panel Components  Removing the Control Panel  Replacing the Control Panel Control Panel Components Removing the Control Panel 1.  Remove the front panel . 2.  Disconnect the con[...]

 Dell Precision 450 Computer Replacing the Control Panel To replace the control panel, perform the removal procedure in reverse. Back to Contents Page  1 control panel 2 mounting screw 1 control panel 2 mounting screw[...]

Back to Contents Page Inside Your Computer — DellPrecision™450Computer DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Inside View of Your Computer  System Board Components Inside View of Your Computer Cable Colors System Board Components CAUTION: Before you begin any[...]

 Back to Contents Page  1 CD/DVD drive connector (IDE2) 14 PCI card connectors (PCI1, PCI2 [32 - bit connectors], and PCI3 [64 - bit PCI - X connector]) 2 I/O panel (I/O PANEL) 15 telephony connector (MODEM) 3 floppy drive connector (DISKETTE) 16 AGP Pro card connector (AGP) 4 memory module connectors (DIMM_1, DIMM_2, DIMM_3, DIMM_4) 17 VRM c[...]

Back to Contents Page Drives — DellPrecision™450Computer DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Overview  Hard Drive  Floppy Drive  CD/DVD Drive Overview Your computer supports: l Two hard drives l One floppy drive l Two CD or DVD drives IDE Drive[...]

Most interface connectors are keyed for correct insertion; that is, a notch or a missing pin on one connector matches a tab or a filled - in hole on the other connector. Keyed connectors ensure that the pin - 1 wire in the cable (indicated by the colored stripe along one edge of the cable) goes to the pin - 1 end of the connector. The pin - 1 end o[...]

SCSI logic requires that termination be enabled for the two devices at opposite ends of the SCSI chain and disabled for all devices in between. It is recommended that you use terminated cables and that you disable termination on all devices. See the documentation provided with any optional SCSI device you purchase for information on disabling termi[...]

Installing a Hard Drive 1.  Unpack the replacement hard drive, and prepare it for installation. 2.  Check the documentation for the drive to verify that it is configured for your computer. 3.  If your replacement hard drive does not have the bracket rails attached, remove the rails from the old drive by removing the two screws that secure [...]

5.  If you are installing a drive that has its own controller card, install the controller card in an expansion slot. See the documentation that accompanied the drive and controller card to verify that the configuration is correct for your computer. 6.  Connect the power and hard - drive cables to the drive. 7.  Check all connectors to be [...]

See the documentation for your operating system for instructions. 15.  Test the hard drive by running the Dell Diagnostics. 16.  If the drive you just installed is the primary drive, install your operating system on the hard drive. Floppy Drive Removing a Floppy Drive 1.  Disconnect the power and floppy - drive cables from the back of the [...]

Installing a Floppy Drive 1.  If you are replacing a drive and the the new drive does not have the bracket rails attached, remove the rails from the old drive by removing the two screws that secure each rail to the drive. Attach the bracket to the new drive by aligning the screw holes on the drive with the screw holes on the bracket rails and th[...]

4.  If you are installing a new floppy drive rather than replacing a drive, remove the front - panel inserts. From inside the drive bay, gently press on each side of the insert until it pops out. 5.  Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents. 6.  Close the computer cover . [...]

Installing a CD/DVD Drive 1.  If you are installing a new drive, unpack the drive and prepare it for installation. Check the documentation that accompanied the drive to verify that the drive is configured for your computer. If you are installing an IDE drive, configure the drive for the cable select setting. 2.  Connect the new drive to the s[...]

5.  If you are installing a drive that has its own controller card, install the controller card in an expansion slot. See the documentation that accompanied the drive and controller card to verify that the configuration is correct for your computer. 6.  Connect the power and CD/DVD drive cables to the drive. If you are adding a drive that has[...]

10.  Connect your computer and devices to electrical outlets, and turn them on. See the documentation that came with the drive for instructions on installing any software required for drive operation. 11.  Update your configuration information by setting the appropriate Drive option ( 0 or 1 ) under Drives : Secondary to Auto . See "Adva[...]

Back to Contents Page Power Supply — DellPrecision™450Computer DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Removing the Power Supply  Replacing the Power Supply Removing the Power Supply 1.  Disconnect the power supply cables from the system board. 2.  Lift [...]

Back to Contents Page Drive Door — DellPrecision™650Computer DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Removing the Drive Door  Replacing the Drive Door Removing the Drive Door 1.  Open the drive door. 2.  Unsnap the top hinge and pull the top of the drive[...]

3.  Lift the bottom hinge away from the computer. Replacing the Drive Door To replace the drive door, perform the removal procedure in reverse. Back to Contents Page [...]

Back to Contents Page Microprocessor Airflow Shroud — DellPrecision™450Computer DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Removing the Microprocessor Airflow Shroud  Installing the Microprocessor Airflow Shroud Removing the Microprocessor Airflow Shroud 1.  P[...]

Back to Contents Page Card Fan and Guide — Dell Precision 650 Computer DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Removing the Card Fan and Guide  Replacing the Card Fan and Guide  The Card Fan Guide Removing the Card Fan and Guide 1.  Disconnect the fan power cabl[...]

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Back to Contents Page Front Panel DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Removing the Front Panel  Replacing the Front Panel Removing the Front Panel 1.  Disconnect and remove all disk drives (for more information, see " Drives — DellPrecision™650Comp[...]

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Back to Contents Page I/O Panel DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  I/O Panel Components for the Dell Precision 650 Computer  I/O Panel Components for the Dell Precision 450 Computer  Removing the I/O Panel  Replacing the I/O Panel I/O Panel Components for [...]

Removing the I/O Panel 1.  Remove the front panel . 2.  Disconnect the control panel cable from the control panel connector. 3.  Disconnect the front - panel cable from the system board. 4.  Remove all cables that are connected to the front I/O panel. 5.  From inside the cover, remove the mounting screw that secures the front I/O pan[...]

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Back to Contents Page Inside Your Computer — DellPrecision™650Computer DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Inside View of Your Computer  System Board Components Inside View of Your Computer Cable Colors System Board Components CAUTION: Before you begin any[...]

Back to Contents Page  1 CD/DVD drive connector (IDE2) 15 standby power light (AUX_PWR_LED) 2 I/O panel connector (I/O PANEL) 16 PCI card connectors (PCI1, PCI2 [32 - bit connectors], PCI3 , PCI4, and PCI5 [64 - bit PCI - X connectors]) 3 floppy - drive connector (DISKETTE) 17 telephony connector (MODEM) 4 memory module connectors (DIMM_1, DIMM_[...]

Back to Contents Page Closing the Computer Cover DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual 1.  Ensure that all cables are connected, and fold cables out of the way. 2.  Ensure that no tools or extra parts are left inside the computer. 3.  Close the computer cover: a.  Pivot t[...]

5.  Connect your computer and devices to electrical outlets, and turn them on. Back to Contents Page [...]

Back to Contents Page Opening the Computer Cover DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual 1.  Lay the computer on its side as shown in the illustration. 2.  Open the computer cover: a.  Slide the cover release latch toward the top of the computer. b.  Raise the cover, and pi[...]

 Back to Contents Page  1 security cable slot 2 cover release latch 3 padlock ring[...]

Back to Contents Page Microprocessor DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Installation Guidelines  Installing the Microprocessor  Removing the Microprocessor Installation Guidelines l Your computer is designed for dual - processor operations. The heat sinks (CPU_0[...]

6.  Remove the thermal grease protective cover and place the heat sink in the base. 7.  Place one end of the heat sink under the tab on the retention module on the side opposite the lever. Lower the heat sink onto the microprocessor so that the heat sink fits securely under the tab on the other end of the retention module. 8.  Replace the [...]

3.  Pull the release lever straight up until the microprocessor is released. 4.  Remove the microprocessor from the socket. If you are replacing the microprocessor, leave the release lever extended in the release position so that the socket is ready for the new microprocessor and go to " Installing the Microprocessor ." If you are r[...]

Back to Contents Page Drives — DellPrecision™650Computer DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Overview  Hard Drive  Floppy Drive  CD/DVD Drive Overview Your computer supports: l Three hard drives l One floppy drive l Three CD or DVD drives IDE D[...]

Most interface connectors are keyed for correct insertion; that is, a notch or a missing pin on one connector matches a tab or a filled - in hole on the other connector. Keyed connectors ensure that the pin - 1 wire in the cable (indicated by the colored stripe along one edge of the cable) goes to the pin - 1 end of the connector. The pin - 1 end o[...]

If you attach additional optional SCSI devices, see the documentation for each device for information about setting the appropriate SCSI ID number. Device Termination SCSI logic requires that termination be enabled for the two devices at opposite ends of the SCSI chain and disabled for all devices in between. It is recommended that you use terminat[...]

3.  Press 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 hard drive, and prepare it for installation. 2.  Check the documentation for the drive to verify that it is configured for your computer. 3.  If your replacement hard drive does not have the bracket rails[...]

4.  Gently slide the drive into place until the tabs securely click into position. 5.  If you are installing a drive that has its own controller card, install the controller card in an expansion slot. See the documentation that accompanied the drive and controller card to verify that the configuration is correct for your computer. 6.  Conn[...]

7.  Check all connectors to be certain that they are properly cabled and firmly seated. 8.  Close the computer cover . 9.  Connect your computer and devices to electrical outlets, and turn them on. See the documentation that came with the drive for instructions on installing any software required for drive operation. 10.  If the drive y[...]

2.  Press inward on the two tabs on the sides of the drive, slide the drive upward, and remove it from the floppy - drive bay. Installing a Floppy Drive 1.  If you are replacing a drive and the the new drive does not have the bracket rails attached, remove the rails from the old drive by removing the two screws that secure each rail to the dr[...]

2.  Gently slide the drive into place until the tabs securely click into position. 3.  Attach the power and floppy - drive cables to the floppy drive. 1 drive 2 bracket rails (2) 3 screws (4)[...]

4.  If you are installing a new floppy drive rather than replacing a drive, remove the front - panel inserts. From inside the drive bay, gently press on each side of the insert until it pops out. 5.  Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents. 6.  Close the computer cover . [...]

2.  Press inward on the two tabs on the sides of the drive, and then slide the drive upward and remove it from the drive bay. Installing a CD/DVD Drive 1.  If you are installing a new drive, unpack the drive and prepare it for installation. Check the documentation that accompanied the drive to verify that the drive is configured for your comp[...]

3.  If you are installing a replacement drive and the new drive does not have the bracket rails attached, remove the rails from the old drive by removing the two screws that secure each rail to the drive. Attach the bracket to the new drive by aligning the screw holes on the drive with the screw holes on the bracket rails and then inserting and [...]

7.  If you are installing a new CD/DVD drive rather than replacing a drive, remove the front - panel inserts. From inside the drive bay, gently press on each side of the insert until it pops out. 8.  Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents. 9.  Close the computer cover . [...]

Back to Contents Page VRM DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Installing a VRM  Removing a VRM Installing a VRM 1.  Remove the microprocessor airflow shroud (for the Dell Precision 650 computer, see " Microprocessor Airflow Shroud — DellPrecision™650?[...]

for the Dell Precision 450 computer, see " Microprocessor Airflow Shroud — DellPrecision™450Computer "). 6.  Close the computer cover . 7.  Connect your computer and devices to electrical outlets, and turn them on. Back to Contents Page  NOTICE: To connect a network cable, first plug the cable into the network wall j[...]

Back to Contents Page Memory DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Memory Installation Guidelines  Removing a Memory Module  Adding a Memory Module You can increase your computer memory by installing memory modules on the system board. For information on the type o[...]

Adding a Memory Module 1.  Press out the securing clip at each end of the memory module connector. 2.  Align the notch on the bottom of the module with the crossbar in the connector. 3.  Insert the module into the connector, ensuring that it fits into the guides at each end of the connector. Carefully press each end of the module into plac[...]

9.  Open the computer cover and check the installed memory modules to ensure that they are seated properly in their sockets. Then repeat steps step 4 through step 7. 10.  When the System Memory total is correct, press <Esc> to exit system setup. 11.  Run the Dell Diagnostics to verify that the memory modules are operating properly. B[...]

Back to Contents Page Microprocessor Airflow Shroud — DellPrecision™650Computer DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Removing the Microprocessor Airflow Shroud  Installing the Microprocessor Airflow Shroud Removing the Microprocessor Airflow Shroud 1.  P[...]

Back to Contents Page Power Supply — DellPrecision™650Computer DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Removing the Power Supply  Replacing the Power Supply Removing the Power Supply 1.  Remove the cards and the card fan. 2.  Disconnect the power supply [...]

5.  Lift the power supply away from the computer. 6.  Slide the power supply cables out of the computer (through the hole). Replacing the Power Supply 1.  Slide the power supply cables through the hole into the computer. 2.  Insert the power - supply securing tabs into the power - supply securing slot on the computer, ensuring that each[...]

Back to Contents Page System Board DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual  Removing the System Board  Replacing the System Board Removing the System Board 1.  Remove any components that restrict access to the system board. 2.  Disconnect all cables from the system bo[...]

5.  Slide the system board assembly toward the back of the computer until the assembly clicks into position. 6.  Replace any components and cables that you removed from the system board. Back to Contents Page [...]