HP DL380 G4 Issues when Ram over 8G

Posted on 2013-01-02
Medium Priority
Last Modified: 2013-01-22
This question is the same as question already asked, more or less. the caviot is that the supplier categorically states that all Ram modules are single rank.
I am trying to upgrade an HP ProLiant DL380 G4 to 12G of ram, I have enough slots to go with 6/2G sticks. No matter how I configure the ram in the server, as soon as I have the first 4 slots filled with the new 2Gig Ram Dimms, any further Ram installed causes the server to NOT boot.
The Ram in the Slots 5 & 6 can be any size 512, 1G or the new 2G with the same results.
If I install Only 2 x 2G Dimms in slots 1 & 2 and then 4 x 1G in slots 3,4,5 & 6 the server boots fine. But again no matter what config all I get is beeps when I go over 8G.
If it is not a Rank issue on the new Ram, what else could it be?
The supply has offered to swap with different manufactured RAM Dimms, but I would like to explore any other possibilities. Thanks
Question by:djcam_highgain
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LVL 56

Expert Comment

ID: 38739589
Part no of the 2GB DIMMs? Also what is system rom revision?
http://www.hwinfo.com/ will confirm number of ranks (if you're running windows).

Author Comment

ID: 38742316
Part is as follows
2GB 240p PC2-3200 CL3 1Rx4 ECC Register
GR2GR18T2564-400-QP18   AAB   7004511

Author Comment

ID: 38742320
http://www.hwinfo.com/ will confirm number of ranks (if you're running windows)
What program am i looking for?
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Author Comment

ID: 38742462
http://www.hwinfo.com/ will confirm number of ranks (if you're running windows)
HW32_410 did the trick. See attached report.
Says single rank for all Dimms
Where do I find the ROM revision? is this the Bios? do you need the details anotated on EProm or the Bios levels?
LVL 56

Expert Comment

ID: 38743175
That ought to work, the system ROM is late enough to support 12GB and the Serial Presence Detect info says they're single rank. Not that happy with the 2GB DIMMs though, the other ones have manufacturer part number etc written to the SPD chip whereas with these those fields are blank. Maybe they're dual rank really and say they're single since you're getting exactly the same symptom you would get were you to exceed the rank loading as per this document

Author Comment

ID: 38745765
Thanks Andy. The supplier has offered to exchange the Ram so will replace it from an alternate manufacturer
regards Dave

Accepted Solution

djcam_highgain earned 0 total points
ID: 38791831
The resolution was replacing the RAM. All works fine now.

Author Closing Comment

ID: 38804849
Took the Advice of respondees and used some online tools for further verification of the issue, and went back to the supplier of the hardware. they offered to replace the ram which we accepted. On receipt of the new ram and installation of this ram, we had no more issues.

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