ASUS Z9PE D8 WS Memory Mirroring Problem

[saquist]

Problem:
My system is newly built and my technician reported that the motherboard was seeing my 32 GB's as only 24 in windows and in the BIOS. (I'm missing 8 GB or RAM in the B1 slot of CPU1)

BIOS:
-ASUS has confirmed my BIOS are up to date
-In the BIOs under Advanced/Chipset Configururation/DIMM information says that the Memory in slot B1 is PRESENT Mirrored Zero Memory

-All Memory was bought as one module group

Previous Steps:
-This board is NEW. The original board was RMA'ed soon after installation after the technician blew the board on a bad power supply. The power supply is replaced and functioning normally.

-The RAM was RMA'ed after the assumption one of the modules was the problem.

-All the RAM was replaced and the 0 GB at B1 CPU1 remained. The previous RAM was added to the board. It should have read 64 GB's but only registered 56 GB.

ASUS Recommendation: RMA (Again)

SYSTEM:
BIOS: 5304
Z9EP D8 WS ASUS Motherboard
2X Processors E5 2630 2.6 Intel Xeon
Corsair 1600 DDR RAM 4 x 8 Total 32 GB
2X 580 GTX Nvidia Cards
PSU 1200W RT Corsair
2X Samsung 520 GB SSD
*1 Non Functional Western Digital Harddrive

 

[raja@asus]

Whats the part number of the kit - is it a single kit or have you combined kits to make up 32GB? If you have combined kits, that's likely the issue. Memory is binned by density - the timings programmed into the SPD/XMP are based on that density. When one combines memory kits, they may not be fully stable at the rated timings of a signle kit unless one makes timing or voltage adjustments.

If it is a single kit, then you need to debug which of the sticks are not mapping by elimination. Check there are no bent pins in teh CPU socket as well.

-Raja

 

[saquist]

Corasir
SO# 1449930939
Item# 20-233-271
Product Description
MEM 8Gx4 Corsair CMT32GX3M4X1866C9

Bought in a single Package of 4 sticks of Ram.

The RMA RAM was sent back to Corsair.
The current RAM in the system only amounts to the original purchased Package of 4 sticks of RAM for 32GB.

-Whether all slots or just 4 slots were filled, Slot B1 CPU1 registers as Present Mirrored Zero Memory in slot B1 instead of Independent.
-Any swap of Memory registers as Mirrored Zero Memory in slot B1

This is either a setting problem in the BIOS or a Bad Board.
(Technican mentions that the board arrived in a Mirrored State (Server Configuration) He apparently had to switch that to Independent Configuration but only slot B1 did not convert to independent. He commendes the next RMA should be changed to Independent by ASUS. He called it a "Flash" before it leaves so no setting will have to be changed.

 

[raja@asus]

Check the CPU socket pins and make sure none are misaligned. Also try using just a single memory module in slot B1 and see if the board will POST.

 

[saquist]

I can confirm the CPU socket pins are properly aligned
However I'm not willing to remove all the RAM but one. That would leave one CPU without RAM and I have no idea how the board or processor will react the empty RAM spaces, considering the instructions require a proper fill position in RAM.

I think I have no choice but to RMA and hope they send a board with out this problem

 

[raja@asus]

Try with one module and one CPU. The board should POST. No harm in trying before you get on the RMA bandwagon and risk more downtime.


If you don't want to do any debugging, then I'm really not sure what help you expect users/members here to provide you.