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Replacing the System Board

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Component Remove/Replacement Component Removal and Replacement Replacing the System Board To replace the system board, perform the above steps in reverse. Pay close attention to installing the PCI cage. Figure 2-13. Replacing the System Board - Reverse steps - Install PCI cage in workstation, with handle up, then press down. NOTE NOTE If you are replacing the system board on a desk side unit, go into the Boot Console Handler (BCH) and set the fan choice to desk side. Be sure to install the four serial port screws BEFORE installing the two system board mounting screws. Chapter 2 23

Section	Page
HP Visualize J6700 UNIX® Workstations	1
HP Visualize J6700 UNIX® Workstations	1
HP Visualize J6700 UNIX® Workstations	1
PA8700	1
Upgrade Instructions	1
Manufacturing Part Number: A6056-90000	1
Edition E0501	1
© Copyright 2001 by Hewlett-Packard	1
© Copyright 2001 by Hewlett-Packard	1
Notice	2
Notice	2
Hewlett-Packard Warranty Statement	2
Hewlett-Packard Warranty Statement	2
Restricted Rights Legend	2
Restricted Rights Legend	2
© Copyright 2001 Hewlett-Packard Company. All Rights Reserved. This document contains proprietary...	2
© Copyright 2001 Hewlett-Packard Company. All Rights Reserved. This document contains proprietary...	2
© Copyright 1980, 1984 AT&T, Inc.	2
© Copyright 1980, 1984 AT&T, Inc.	2
© Copyright 1979, 1980, 1983 The Regents of the University of California. This software and docum...	2
© Copyright 1979, 1980, 1983 The Regents of the University of California. This software and docum...	2
1 Getting Started	3
1 Getting Started	3
CAUTION This upgrade process should be performed by experienced hardware users only.	3
Safety Warnings	3
Safety Warnings	3
WARNING Removing the device cover may expose sharp edges in the equipment chassis. To avoid injur...	3
NOTE Before performing removal/replacement procedures, position the workstation on a cushioned fl...	3
NOTE Installing the recommended HP replacement part in your J6700 workstation does not affect the...	3
Electrostatic Discharge (ESD) Precautions	3
Electrostatic Discharge (ESD) Precautions	3
• Remove all ESD-generating materials from the work area in which you will remove and replace the...	3
• Remove all ESD-generating materials from the work area in which you will remove and replace the...	3
• Open the ESD materials provided with the replacement part kit. Unfold the black conductive shee...	3
• Wear a static strap to ensure that any accumulated electrostatic charge is discharged from your...	3
• Connect all equipment together, including the static-free mat, static strap, clips attached to ...	3
• Keep uninstalled printed circuit boards in their protective antistatic bags.	4
• Once you have removed printed circuit boards from their protective antistatic bags, handle the ...	4
Replacement Part Kit Contents	4
Replacement Part Kit Contents	4
• System board upgrad tray assembly	4
• System board upgrad tray assembly	4
• Electrostatic Discharge (ESD) materials	4
• Removal/Replacement Instructions	4
Required Tools	4
Required Tools	4
• Light-duty flat blade screwdriver with 6-inch (150 mm) blade	4
• Light-duty flat blade screwdriver with 6-inch (150 mm) blade	4
• T-15 and/or T-20 Torque drivers	4
• ESD materials	4
• Sufficient ESD protected surfaces on which to lay out parts	4
Preparing Your Workstation	5
Preparing Your Workstation	5
1. Determine if you have the correct version of the operating system. Note that your workstation ...	5
1. Determine if you have the correct version of the operating system. Note that your workstation ...	5
2. Determine the workstation’s LAN ID by entering the following command:	5
Safely Powering Down the J6700 Workstation	6
Safely Powering Down the J6700 Workstation	6
CAUTION Do not use the power supply interlock thumbscrew on the rear panel to power down the work...	6
NOTE Remove any accessory bag(s) and their black tab screws, if present, from the rear of the wor...	6
1. Power off the workstation by simply pressing the power switch on the front panel of the workst...	6
1. Power off the workstation by simply pressing the power switch on the front panel of the workst...	6
2. After 30 seconds, unplug the workstation’s power cord and all peripheral devices from AC power...	6
3. Place the workstation on a flat, stable surface, such as a tabletop or floor. To protect again...	6
Product Exploded Diagram	7
Product Exploded Diagram	7
Figure11. Exploded View of the J6700 Workstation	7
Figure11. Exploded View of the J6700 Workstation	7
<GRAPHIC>	8
Table11. Description of the Components in the J6700 Exploded Diagram	8
<TABLE HEADING>	8
<TABLE ROW>	8
Numbers in Figure 1-1	8
Description	8
<TABLE BODY>	8
<TABLE ROW>	8
1	8
J6700 System Board Assembly	8
<TABLE ROW>	8
2	8
Power supply 500W includes system speaker, power supply fans, and LCD display cable	8
<TABLE ROW>	8
3	8
SDRAM DIMMs	8
<TABLE ROW>	8
4	8
LVD Ultra SCSI hard disk	8
<TABLE ROW>	8
5	8
CD ROM slim-line, ATAPI Assembly	8
<TABLE ROW>	8
6	8
PCA, SCA backplane (disk drive)	8
<TABLE ROW>	8
7	8
LCD/power switch assembly	8
<TABLE ROW>	8
8	8
VRM assembly	8
<TABLE ROW>	8
9	8
PCA-PCI backplane board	8
<TABLE ROW>	8
10	8
PCI cage assembly includes PCI tray fan	8
<TABLE ROW>	8
11	8
Disk drive bracket assembly	8
<TABLE ROW>	8
12	8
Main chassis assembly	8
<TABLE ROW>	8
14	8
Internal SCSI cable	8
<TABLE ROW>	8
13	8
Disk EMI cover assembly	8
<TABLE ROW>	8
14	8
Front bezel assembly	8
<TABLE ROW>	8
15	8
Cosmetic cover (without logo)	8
<TABLE ROW>	8
16	8
Deskside pedestal	8
2 Component Remove/Replacement	9
2 Component Remove/Replacement	9
Chapter Overview	9
Chapter Overview	9
• Front Bezel and Top Panel	9
• Front Bezel and Top Panel	9
• Bezel-Label Strip	9
• LCD Panel	9
• Hard Disk Drives	9
• Hard disk Drive Backplane	9
• CD ROM Drive	9
• Memory DIMMs	9
• Power Supply	9
• PCI Cage	9
• PCI Backplane	9
• Speaker	9
• System Board	9
• Real-Time Clock	9
WARNING For most of the removal and replacement procedures in this chapter, you must power off th...	9
NOTE To maintain FCC/EMI compliance, verify that all covers are replaced and that all screws are ...	9
Component Removal and Replacement	10
Component Removal and Replacement	10
Front Bezel and Top Cover	10
Front Bezel and Top Cover	10
CAUTION The system will not operate with the top panel removed.	10
Removing the Top Cover	11
Removing the Top Cover	11
Figure21. Removing the Top Cover	11
Figure21. Removing the Top Cover	11
<GRAPHIC>	11
Removing the Bezel-Label Strip	12
Removing the Bezel-Label Strip	12
1. Remove your workstations bezel as shown the section “Front Bezel and Top Cover” in this chapter.	12
1. Remove your workstations bezel as shown the section “Front Bezel and Top Cover” in this chapter.	12
2. Remove the old bezel-label strip from the bezel. To do this, push up on the two bezel-label st...	12
Figure22. Removing the Bezel-Label Strip	12
Figure22. Removing the Bezel-Label Strip	12
<GRAPHIC>	13
Removing the LCD Panel	13
Figure23. Removing the LCD Panel	13
Figure23. Removing the LCD Panel	13
<GRAPHIC>	14
Removing the Hard Disk Drives	14
Figure24. Removing the Hard Disk Drives	14
Figure24. Removing the Hard Disk Drives	14
<GRAPHIC>	15
Removing the Hard Disk Drive Backplane	15
Figure25. Removing the Hard Disk Drives Backplane	15
Figure25. Removing the Hard Disk Drives Backplane	15
<GRAPHIC>	15
Internal CD ROM Drive	15
Figure26. Removing the CD ROM Drive	16
Figure26. Removing the CD ROM Drive	16
<GRAPHIC>	17
Power Supply	17
Figure27. Removing the Power Supply	17
Figure27. Removing the Power Supply	17
<GRAPHIC>	18
Figure28. Removing the Power Supply (cont’d)	18
<GRAPHIC>	19
PCI Cage	19
Figure29. Removing the PCI Cage	19
Figure29. Removing the PCI Cage	19
<GRAPHIC>	20
Figure210. Removing the PCI Backplane	20
<GRAPHIC>	20
Speaker	20
Removing the System Board	21
Removing the System Board	21
Figure211. Removing the System Board	21
Figure211. Removing the System Board	21
<GRAPHIC>	22
Figure212. Removing the System Board	22
<GRAPHIC>	23
Replacing the System Board	23
Figure213. Replacing the System Board	23
Figure213. Replacing the System Board	23
<GRAPHIC>	23
NOTE Be sure to install the four serial port screws BEFORE installing the two system board mounti...	23
Removing and Replacing the Real-Time Clock	24
Removing and Replacing the Real-Time Clock	24
Figure214. Removing the Real-Time Clock	24
Figure214. Removing the Real-Time Clock	24
<GRAPHIC>	25
3 Wrapping Up	25
Verifying System Operations	25
Verifying System Operations	25
1. Reconnect the power cables and any other cables that were disconnected when opening the workst...	25
1. Reconnect the power cables and any other cables that were disconnected when opening the workst...	25
2. Reconnect all peripheral devices and their associated power cables.	25
3. Verify that the SCSI terminators are reattached where necessary.	25
4. Power-on the system (push the power button on the front panel).	25
5. The console will prompt you to set the LAN ID which was recorded earlier. It is also next to t...	25
6. Reset the BCH path numbers if they are different than the defaults.	25
7. If the console screen fails to come up, set up a serial terminal on COM1 and remove the keyboa...	25