Sun Blade X6250 Server Module
 
Sun Blade 6048 System
 

PLA-Support>Sun Systems>Sun_Other>Sun Collections>SN-OTH: x64-CAP VCAP
 

In this Document

Goal

Solution

Oracle Confidential INTERNAL - Do not distribute to customer (OracleConfidential).
Reason: Specific procedure for University of Tokyo

Applies to:

Goal

How to Replace Sun Blade X6250 Memory Modules.

Solution

DISPATCH INSTRUCTIONS

WHAT SKILLS DOES THE ENGINEER NEED:(IS A SITE ENGINEER AVAILABLE?)
Can be replaced by anyone.

TIME ESTIMATE: 60 minutes

TASK COMPLEXITY: 1

FIELD ENGINEER INSTRUCTIONS

The system has reported a DIMM issue that cannot be diagnosed by ILOM events. So some diagnosis is needed at site, to resolve this situation.

Caution: Do not operate the system with empty slots. Always insert a filler panel into an empty slot to reduce the possibility of module shutdown.

Note: The DIMM Fault LEDs and the CPU Fault LEDs are powered by capacitors that retain their charge for about 30 minutes after the server module is removed from the chassis. To recharge the capacitor, place the server module in a powered chassis for five minutes.

 
WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY?:

System must be shut down.

WHAT ACTION DOES THE ENGINEER NEED TO TAKE:

1- Power cycle the Blade to see if the system completes POST, check all memory is reported (32Gb) and that the system is bootable. Choose Step a,b or c which matches your symptoms.

a- If it is bootable and ALL DIMMs are reported, then please run Pc-Check® Extended to diagnose the DIMM pair that needs to be replaced. Once this is discovered go to replacement step 1. If Pc-Check® does NOT report DIMM fault after ‘extended’ DIMM testing, reseat all DIMMs and return system back to Customer.

b- If the system completes POST but does NOT display all memory then go to Step 7.

c- If the system does NOT complete POST or is not bootable, then go to Step 2. 

2- Power off the server and remove the server module from the chassis

3- Remove the main cover.

4- Press the fault remind button on the motherboard to illuminate the LED for the DIMMs that have failed. Once this is discovered record the DIMM locations, then go to replacement step 10. If no fault LED go to Step 5.

5- Remove all memory except for DIMMs A0, B0,C0, and D0, as a start 8Gb (4 X 2Gb)DIMMs. Repeat POST and re-install DIMMs using DIMM population Table until the failing pair is located then replace that pair, following steps 10-15, skipping step 12.

6- If it still fails replace A0, B0,C0, and D0 DIMMs, replace all memory with another 4 removed DIMMs, the system, now should pass POST, then use DIMM population Table to locate falling pair, just removed. Re-install DIMMs using DIMM population Table until the failing pair is located then replace that pair, following steps 10-15, skipping step 12.

7- Power off the server and remove the server module from the chassis

8- Remove the main cover.

9- Remove eight of the DIMMs (A2, B2) (A3, B3) (C2, D2) of (C3, D3) which minimizes the configuration to 16GB (8 X 2Gb) DIMMs, rerun POST, if still memory missing Choose Step A or if memory not missing Choose Step B.

A- The DIMM pair with the issue is contained in the system. Use the DIMM population Table to decrease the population to locate the failing pair.

B- The DIMM pair with the issue is contained to a DIMM pair removed. Use the DIMM population Table to Increase the population to locate the failing pair.

C- Repeat the actions until the failing pair has been located then replace that pair, following steps 10-15, skipping step 12.

DIMM population Table

 Number of DIMMs        Pairs/Slots            Branch            CPU
-----------------------------------------------------------------------------------
              2                          A0, B0                      0                   0
-----------------------------------------------------------------------------------

             4                          C0, D0                     1                   1
-----------------------------------------------------------------------------------
             6                          A1, B1                      0                  0
-----------------------------------------------------------------------------------
             8                          C1, D1                     1                  1
-----------------------------------------------------------------------------------
            10                         A2, B2                      0                  0
-----------------------------------------------------------------------------------
            12                         C2, D2                     1                  1
-----------------------------------------------------------------------------------
            14                         A3, B3                      0                  0
-----------------------------------------------------------------------------------
            16                         C3, D3                     1                  1
-----------------------------------------------------------------------------------

• Two DIMMs within each pair must be identical (same manufacturer, size, and speed).
• The DIMM slots are paired.
• The DIMMs must be installed in pairs (0 and 1, 2 and 3, etc). The slots for the first two pairs are white; all others are black.

10- Power off the server and remove the server module from the chassis.

11- Remove the main cover

12- Press the fault remind button on the motherboard to illuminate the LED for the DIMMs that have failed, or if recorded in Step 4, proceed to replace that pair.

13- Now you have identified the DIMM pair to replace. Locate the DIMM slots on the motherboard to which you want to replace.

14- To remove a DIMM:

Rotate both DIMM slot ejectors outward as far as they will go.

1. The DIMM is partially ejected from the socket.
2. Carefully lift the DIMM straight up to remove it from the socket.

15- To install a DIMM:

1. Ensure that the DIMM slot ejectors at each end of the memory socket are fully open (rotated outward) to accept the new DIMM.
2. Align the notch in the bottom edge of the DIMM with the key in the DIMM socket
3. Press down evenly on both top corners of the DIMM until the ejectors snap over the cutouts in the left and right edges of the DIMM.
4. Check all DIMM ejectors appear to be in a line and all DIMMs appear to be the same height off the system board.

PARTS NOTE:
540-7252

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