Bad Module?

[MojoMK]

I'm building a new system: Asus P5W DH Deluxe, Core 2 E6600, Radeon 1900XT, and TWIN2X2048-6400C4 RAM.

 

I cannot post to bios when the 2 modules are in the dual channel slots (tried both sets). I removed one of the modules and the computer booted normally. I also tried booting with both modules in single channel mode. The computer posted, however, when I tried installing Windows, it kept giving me errors.

 

Any ideas?

 

Thanks,

 

MK

[RAM GUY]

Can you tell me the Bios setting you have set for both CPU and memory and what is the make and model of your PSU?

[MojoMK]

I have everything set to Auto in the Bios. I do know the bios auto-detects the RAM as PC-5300. My PSU is an Antec NeoHE 500.

 

I called Asus tech support and they suggested: (A) making sure the memory is compatible (which I believe it is), and (B) using one module to manually change the RAM settings to the correct timings, etc.

[MojoMK]

Update:

 

I went home and tried changing the memory timings in the bios (with the good module), and that didn't work. I tried to post with the module I believe is bad, and could not. Then I ran memtest off a bootable CD (with both modules in single channel mode) and came up with so many errors that I just quit after 4 hrs (it was still running the test). At this point I 'm pretty much positive that one of the modules is bad.

 

I already have a case number, 201909, and have received a confirmation that I will be getting an RMA number. Waiting for it now.

[RAM GUY]

You may need a bigger PSU at least you need to make sure that you have Rev A03 version of that PSU. And you will need to manually configure the timings and voltage with this MB and memory. Please set the tested settings for the specific module you have and this MB will have to run at 2T Command Rate and I would set the memory Voltage to 2.1 Volts. You will have to disable legacy USB as well when running http://www.memtest.org

[MojoMK]

I did manually set the timing and voltage in the bios with the one stick that works.

 

I also tried to run memtest with each module separately, but the suspected bad stick wouldn't post at all. When I ran memtest with the good stick only, everything checked out. When I ran them both in single channel mode, I came up with a ton of errors.

 

According to the serial # on the PSU, I do have a newer version. I know that the P5W DH has issues with the older versions of NeoHE PSUs.

 

Also, I did disabled all USB, firewire, unused IDE channels, RAID controller, etc.

[RAM GUY]

You have to leave the USB controller enabled and just disable Legacy USB. But if it will not post then lets get them replaced.

Please follow the link in my signature “I think I have a bad part! Or *New* Tech Support Express” and we will be happy to replace them or it, please note that you are posting from the forum!