Cannot upgrade HP DL380 G5 beyond 8GB ram.
Posted on 2011-04-25
HP DL380 G5 Configuration:
-- 2x5160 3Ghz CPUs
-- 8GB installed upgraded from 4GB. Dual Rank FBDIMM PC2-5300 667Mhz
-- Latest Firmware 10/25/2010
Purchased 8x2GB of Dual Rank FBDIMM PC2-5300 667Mhz ECC memory from web site stating memory compatible with HP DL380 G5.
Installed 4GB Bank A - Slot 1,3 - Posts
Installed 8GB Bank AB - Slot 1,3,5,7 - Posts
Installed 12GB Bank ABC - Slot 1,2,3,4,5,7 - No Post
Installed 16GB Bank ABCD - Slot 1,2,3,4,5,6,7,8 - No Post
Cleared CMOS / NVRAM from Rom Bios Utilities - Same as above
Enable SW6 then booted to RBSU. Shutdown. Disable SW6 and booted - Same as above
Updated Bios to latest 10/25/2010 firmware - Same as above
Also tried a 2006 and 2008 firmware prior - Same as above
System only seems to post when memory in Bank A (slot 1,3) or Banks AB (slot 1,3,5,7). All memory seems to be interchangeable and fully working. Swapped the various modules around in the working slots. The G5 front panel does not show any memory errors on any of the modules.
Previously, the server was a single 1.8Ghz Quad Core CPU. I replaced that single CPU with two 3Ghz Dual Core kits (VRM and Heatsinks). The Post shows 2 CPUs with 4 Cores available. The system is running XenServer with all 4 Cores available. Is there some compatibility with these CPUs and accessing Bank C or Bank CD? Is there some sort of switch or setting to enable access to Bank C or Bank CD?
With 2 CPUs installed, Banks CD should be available. The DL380 G5 supports 8x2GB configuration according to users in HP forums. We should be able to just install the memory and it should just work.
Please help. What am I missing?
Thanks for looking