Asset ID:	1-71-1019220.1
Update Date:	2010-10-04
Keywords:

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Solution Type  Technical Instruction Sure

Solution  1019220.1 :   Sun Fire[TM] V445 Best Practice for System Board [Video]  


PreviouslyPublishedAs
237124

Applies to:

Sun Fire V445 Server
All Platforms

Goal

Description

When replacing the Mother Board on a Sun Fire V445, please follow “CPU CARD CAGE BEST PRACTICE INSTALLATION” procedure.

If the system is shutting down power with one of the SC> error messages listed below, then please double check the cpu card cage alignment first before replacing any FRUs. If you continue to get these SC messages after you have checked the cpu card cage alignment, then proceed with replacing the indicated FRU.


Video - V445 System Board Best Practice (5:00)

 

Solution

Steps to Follow
V445 Best Practice for System Board

List of some SC> messages that can cause systems to shutdown:

SC Alert: FAULT_SENSOR @ C2.P0.FF_POK has FAILED
SC Alert: Access to TEMP_SENSOR @ C2.P0.T_CORE has failed.
SC Alert: Access to TEMP_SENSOR @ C2.T_AMB has failed.
SC Alert: Failed to read ES segment from FRU seeprom
SC Alert: FAULT_SENSOR @ FIOB.I_USB2 has FAILED

ERROR: CPU2 SEEPROM access failed System configuration failed, powering off

Note:there are other SC> messages that could shutdown power that are not listed above.

Checking CPU card cage alignment:

1. Check to see when installing/removing CPUs in slots 0 & 1, if they have more drag than in slots 2 or 3.

If slots 0 & 1 does more drag than 3 or 4, then follow the “CPU CARD CAGE BEST PRACTICE INSTALLATION” procedure. If there is no noticeable difference in the drag in all cpu slots, then the card cage is installed properly.

CPU CARD CAGE BEST PRACTICE INSTALLATION:

1. With all screws that hold down the card cage loosened, first tighten down the screw at cpu slot #1. Go to step #2 for details.

2. Use your finger to hold this lower part of the support bar out towards the center of the MB as shown in the picture. Keep a constant pressure on this bar while tightening down this cpu slot #1 screw.

3. See if there is any drag installing cpu 0 or 1. If not, then got to step #4. If the drag continues then retry steps 1 & 2 again. 4. Tighten down remaining cpu card cage screws.


Product_uuid
eb738cf6-d4ad-11da-a742-080020a9ed93

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