Intel DQ45EK doesn't take 4GB RAM anymore

[idata]

Hi

I have an Intel DQ45EK. On this board i have 2x2GB Transcend RAM. This worked some time ago.

Now i updated the BIOS to the newest version and now i can't install a 64-bit system anymore (tried Windows Server 2008 and Windows Server 2008 R2). They stop installing or run veeery slowly.

If i use only 2GB RAM, they work fine. I tested my RAM with memtest86+ 4.00 and they seem to be ok. memtest also run veeeeeery slowly if i have 4GB installed, if i check only 2GB at once, it works fine.

My problem seems to be similar to this:

http://forums.fedoraforum.org/showthread.php?t=157232 http://forums.fedoraforum.org/showthread.php?t=157232

Is there any possibility to use 4GB RAM?

Greets from Germany

Tobias

[idata]

Have you tried rolling back to an earlier BIOS?

[idata]

Go back to the previous version of the bios where the rams are working. Then install the programs.

[idata]

Hi

There is a new BIOS available for this board:

PRODUCTS: DQ45CB, DQ45EK (Standard BIOS)

[...]

BIOS Version 0115

About This Release:

• February 01, 2010

• CBQ4510H.86A.0115.2010.0201.1427

• ME Firmware Revision: 5.2.0.1018

• Integrated Graphics Option ROM Revision: 1940

• SATA RAID Option ROM Revision: 8.6.0.1007

• PXE LAN Option ROM Revision: Intel(R) Boot Agent GE v1.3.27

New Fixes/Features:

[...]

• Fixed issue where system takes a very long time to boot with a 64-

bit operating system.

[...]

So my problem is fixed now! I installed this version of the BIOS and it works now!

Greets Tobias