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I am having an issue with my server's RAM. Out of seemingly nowhere 4 of the RAM slots are not working, slots E1, E2, F1, and F2. The error codes given in BIOS are the following, all of which just say "DIMM_xx disabled" or "DIMM_xx failed test/initialization" http://download.intel.com/support/motherboards/server/s2600cp/sb/g26942005_s2600cp_p4000cp_tps_rev18.pdf the manual: 854C, 852C, 854D, 852D, 854F, 852F, 8550, 8530
Out of the 16 slots of RAM, these 4 slots associated with CPU 2 are not working. The other 4 slots associated with CPU 2 are filled with the same kind of RAM and are working fine.
I have taken all of the sticks out and tried various combinations of them. I tried populating the 2 slots furthest from the sockets with the 2 alternate sets of the 4 sticks to see if one or the other was the problem. I tried cleaning the sockets and sticks as well.
What could be wrong and is there any way I can fix it?
Thanks!
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Hello ajthemacboy,
Regarding your concern, "Four memory DIMMs not working".
Could you please help me get a better picture.
Let's start with the Hardware configuration:
- CPU 1 –
- CPU 2 –
- Type of memory(Model) –
- PCI cards –
- BIOS Version on the board –
Troubleshooting done.
Thank you for your help.
If there is anything else we can help please feel free to ask.
Best regards,
Henry A.
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Hi Henry, here you go:
CPU 1: E5-2670 v1
CPU 2: E5-2670 v1
Memory model: M393B1K70DH0-CK0 - it's 8GB 240-pin DDR3 SDRAM ECC and I have 16 sticks installed
PCI cards: none
BIOS version:
BIOS ID : SE5C600.86B.02.06.0005.080320162159
BMC FW Rev : 01.27.9958
Boot FW Rev : 01.17
SDR Package Version : SDR Package 1.11
Thank you!
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Hello ajthemacboy,
Thank you for the update information and my apologize on the delay. There is a https://downloadcenter.intel.com/download/26957/Intel-Server-Board-S2600CP-Firmware-Update-Package-for-EFI?product=66133 BIOS Update for this motherboard. Please update the https://downloadcenter.intel.com/download/26957/Intel-Server-Board-S2600CP-Firmware-Update-Package-for-EFI?product=66133 BIOS and I will also recommend to test two dims at a time and then 2 pair for each processor.
Thank you for your help.
If there is anything else we can help please feel free to ask.
Best regards,
Henry A.
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Hello ajthemacboy,
Just wanted to follow up if there is anything else I can help with.
Thank you for your help.
If there is anything else we can help please feel free to ask.
Best regards,
Henry A.
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Hi Henry, I tried testing individual DIMMs as suggested and that didn't work, and I updated the BIOS. In the end I ordered a new motherboard and it is working fine now. Thanks!
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Thought i would look here, i notice this ram you had was 1.5v, Kingston (we will ONLY use there ram), only recommend 1.35volts, also it appears there is a bias for both RDIMM and LRDIMM (both should be 1.35volt).
There may have been an over current pull somewhere, meaning all the ram i bet tested ok when used individually for testing but failed when all installed.
However i see you replaced the board, but thought i would post the above as ive been caught on things like this before.
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Hello ajthemacboy,
I am glad the motherboard replacement worked. If you don't might I will proceed with closing the forum.
Thank you for your help.
If there is anything else we can help please feel free to ask.
Best regards,
Henry A.

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