DL360 G6 Incompatible RAM configuration? Why?

[Asdf51020]

Hello,

I have an HP DL360 G6 server. Two Processors

There are 2x9 memory slots. I have:

1-Empty

2-2GB

3-2GB

4-Empty

5-2GB

6-2GB

7-Empty

8-2GB

9-2GB

Why am I not able to fill the empty slots with 1GB modules? (according to HP's RAM configurator website)

[Jimmy Vance]

If your using UDIMMS you can only use 2 of the 3 channels according to the guidlines in the quickspecs

Some DIMM installation guidelines are summarized below:

• For servers with eighteen (18) memory slots:
•        There are three (3) channels per processor; six (6) channels per server
•        There are three (3) DIMM slots for each memory channel; eighteen (18) total slots
•        Memory channel 1 consists of the three (3) DIMMs that are closest to the processor
•        Memory channel 3 consists of the three (3) DIMMs that are furthest from the processor
• DIMM slots that are white should be populated first
• Do not mix Unbuffered memory (UDIMMs) with Registered memory (RDIMMs)
• Do not install DIMMs if the corresponding processor is not installed
• If only one processor is installed in a 2CPU system, only half of the DIMM slots are available
• To maximize performance, balance the total memory capacity between all installed processors
• It is not required, but it is recommended to load the channels similarly if possible
• You can only have up to eight (8) ranks installed per channel
• You can only install two quad-rank DIMMs per channel
• You can only install two UDIMMs per channel; if available, the third slot in the channel must remain empty
• Populate DIMMs from heaviest load (quad-rank) to lightest load (single-rank) within a channel
• Heaviest load (DIMM with most ranks) within a channel goes furthest from the chipset
• For memory mirroring mode, channel 3 must be unpopulated. Channels 1 and 2 are populated identically
• For lock-step mode, channel 3 must be unpopulated. DIMMs in channels 1 and 2 will be installed in pairs. The paired slots will be 1,4; 2,5; 3;6 on a 3DPC system or 1,4; 2,5; on a 2DPC system
• No mixing DIMM voltage; all DIMMs must be the same voltage

http://www8.hp.com/h20195/v2/GetDocument.aspx?docname=c04284365

[Asdf51020]

I did not realize HP 1GB PC3-10600 RDIMMs do not exist...

Well that explains that...