Memory config for SuperMicro server board (suggested DIMMS wont post)

[JRI007]

This motherboard has 8 DIMM slots.: A1 A2 B1 B2 C1 C2 D1 D2

I have the SM X9SRH-7TF board.The problem is that the board doesnt seem to post when i use D1. it will hang with a screen supermicro screen that has B7 in lower right corner.

The Manual says to first populate (x)1 slots first which are blue. If i have 1-3 sticks going from A1 to C1 they all work fine. I have verified that all 4 modules post individually if in slot A1. it all seems to work well accept when i try to use D1, then the board fails to post. Originally I bought 4 16GB sticks, and seemed to isolate 1 that was not working. I did memtest on the other 3 individually and they all seemed fine, so I just assumed i had one bad stick.

Today I just received a new 16GB stick. doing tests with the config today it seems that the board will post when i use A1, A2, B1, C1 (using A2 instead of D1) The bios shows 64GB at 1600 MHZ.

manual says :

When installing memory modules, the DIMM slots should be populated in the following order: DIMMA1, DIMMB1, DIMMC1, DIMMD1 then DIMMA2, DIMMB2, DIMMC2, DIMMD2.

The motherboard will support odd-numbered modules installed (1 ,3 ,5 ,or 7 modules). However, for best memory performance, install DIMM modules in pairs.

and :

Populating these DIMM modules with a pair of memory modules of the same type and same size will result in interleaved memory, which will improve memory performance. Please refer to the table below:

So..... should i do some more tests with the current config that posts (A1, A2, B1, C1 ) or get in contact with the seller and try and get a exchange/return/repalcment Board ?

The BIOS defualt setting for Channel inetleaving and Rank Interleaving is Auto, in the bios It does allow me to change settings:

DDR Speed

Use this option to force the system memory to run at a different frequency than the default frequency. The available options are Auto, Force DDR-800, Force DDR-1066, Force DDR-1333, Force DDR3-1600 and Force SPD.

Channel Interleaving

This feature selects from the different channel memory interleaving methods. The options are Auto, 1 Way, 2 Way, 3 Way and 4 Way.

Rank Interleaving

This feature selects from the different rank memory interleaving methods. The options are Auto, 1 Way, 2 Way, 3 Way, 4 Way and 8 Way.

Should i set CI to 4 way and RI to 8 way , and run some tests ? leave it in Auto and run some tests ? just go for a motherboard return ?

Thoughts ?

 

[ffg7]

I would say your D1 slot is bad. if still under warranty get it replaced.

 

[mx_mp210]

Try to fit in D1 slot and check if it is detected, if not then it's probably dead and you should replace the board. All A,B,C,D channels are from different memory controller on your CPU. To make sure it's motherboard's problem and not fault inside CPU controller. Try both D1 and D2 slot to check weather CPU is faulty or board.

The guidelines in the manual is for optimal memory configs which will lead to faster and easier memory access for chipset , Memory should detect in any slot of the board.