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Unable to Discover New Installed Memory and Processor

 
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Sial_1
Frequent Advisor

Unable to Discover New Installed Memory and Processor

Hi,

we have 3 new DL385 G5 servers come with 4 Processor Memory Cells. we have added 4 additional Processor Memory Cell but system unable to detected newley added Processors and Memory. is there any BIOS configuration that need to be chang or what i am missing to configure new hardware

Thanks in advance
5 REPLIES
Dmitry_75
Valued Contributor
Solution

Re: Unable to Discover New Installed Memory and Processor

Hi!
DL385G5 have 2 proc sockets and 8 memory slots, and have not proc\mem cells.
What do you mean?
Sial_1
Frequent Advisor

Re: Unable to Discover New Installed Memory and Processor

sorry that was typo mistake. correct model is DL785 G5.
Dmitry_75
Valued Contributor

Re: Unable to Discover New Installed Memory and Processor

How many mem dimms in existing and additional cells? Processors same?
juan quesada
Respected Contributor

Re: Unable to Discover New Installed Memory and Processor

Hi,

Observe the following guidelines when installing additional memory:

1)Always install memory in pairs of two identical DIMMs.
2)Install only ECC PC2-5300 Registered DDR2 SDRAM DIMMs that meet the following specifications:
*

Supply voltage: 1.8 V
*

Bus width: 72 bits



3)Install DIMMs with the same speed.
4)Install memory in pairs (banks) beginning with banks farthest away from each populated processor (banks A and C).
5)Observe the following special conditions when installing memory with a second processor:
o

Processor 2 can be installed without memory.
o

Any memory installed into banks for processor 2 can be used only if processor 2 is installed.


Regards,
Sial_1
Frequent Advisor

Re: Unable to Discover New Installed Memory and Processor


i found the reason why system not picking up the newly added memory and processors.

The memory DIMM configuration(physical) across all the Processor/Memory Cell Boards should be the same.

1- DIMMs must be installed in Pairs.
2- DIMMs installed on the same memory bank (DIMM Pairs)
3- DIMMs installed in different banks can be of different sizes.
4- Aminimum of two DIMMs must be installed per processor.
5- DIMMs pairs must ve installed evenly across processor memory blades.
6- DIMMs must be installed in decreasing capacity with the largest DIMMs istalled in the banks furthest away from each processor.

what we were missing is point # 5.

Thanks for you all.