ECS A790GXM-A Win7 x64 crash with 4GB RAM

[gallovfc]

Hy guys, this is my first participation here. I am having a problem, since I upgraded my rig from 2GB (2x 1Gb) to 4GB(2x 2Gb) RAM it crashes when trying to start Windows 7 x64. My rig was by the time:
- Athlon x3 440 3.0GHz, 2GB 800MHz Samsung, ECS A790GXM-A (DDR2 - not the AD3 DDR3 version).

I upgraded to the 1066MHz OCZ 2x 2GB, but crashed. Switched to 1x 2GB + 1x 1GB worked (all combinations). (Yes, I used the right voltage on them).
Then I switched back to the 32Bit version.

I upgraded the BIOS to the version 080015 (07/06/2010) and upgraded my CPU to the Phenom II x6 1100T. It works prety well but still won't let me use the x64 version.

Does anyone know any solution ??

 

[rolli59]

For dual channel you might have to bump the voltage up a little, up to 0.2volts over rated is fine, try in 0.05volt increments.

 

[gallovfc]

I was able to solve the problem with the latest BIOS and Windows 7 SP1, but just by creating an image with it instaled and then copying to my HDD. Thanks anyway !!

 

[gallovfc]

Best answer selected by gallovfc.