Has anyone cleared the CMOS on a DFI NF4 w/ a dual-core Opteron?

[Phew]

I had to clear the CMOS on my DFI NF4 Ultra-D a week or so after installing an Opteron 170 processor. However, after clearing the CMOS, the computer hangs if I try to enter the BIOS. It will boot into Windows and run all apps just fine.

Has anyone cleared the CMOS with this mobo/CPU combo and then still successfully entered the BIOS? The DFI support gurus on dfi-street.com are telling me that DFI NF4 boards don't support Opteron processors, and that Opterons can cause strange DOS/BIOS issues like mine.

I have reflashed the BIOS and cleared the BIOS (following the exact correct procedure) multiple times, but I am still unable to enter the BIOS. Has anyone else experienced this problem? I am going to try installing a regular A64 CPU tonight and see if that allows me to enter the BIOS.

 

[kabttu]

I had to clear the CMOS a few weeks ago because of too aggressive OC settings. I have an Opteron 170 and Ultra-D. No problem getting back into BIOS. That's a very strange problem.

 

[saechaka]

yeah i've had to clear my bios on 2 or 3 occasions w/opty 165. sounds like it might something else causing the 'hang.' have you tried maybe 1 stick ram? different ram? maybe PS or vid. just a thought. hope that helps

 

[Thor86]

Did you try and take the CMOS battery off the motherboard?

 

[Phew]

As discussed in THIS THREAD and THIS THREAD ON DFI-STREET, I have tried just about everything you can think of. My last resort before I RMA for a new board or CMOS ROM is to install an Athlon64 CPU and see if that fixes the problem.

 

[arcas]

I've (so far) had no problems with my Ultra-D and Opteron 165. I've only reflashed and cleared the CMOS once.

 

[themusgrat]

Have you tried to flash it with winflash? If you do, make sure to flash all the blocks, though that will erase any current settings. I kind of had the same problem using the 702 big toe BIOS, and a winflash to a real bios fixed it, but only if I flashed everything. Good luck.

 

[Phew]

Yes, I used Winflash on all blocks. I'd reflashed 3 times in this fashion now, and I still can't enter the BIOS.

 

[JustStarting]

sent you a PM

 

[Unkno]

hmmm, really strange problem, have you tried flashing to an older BIOS that works? Opterons shouldn't cause a problem since it should be still detected similar to an A64

 

[Phew]

UPDATE: It was indeed a hardware problem. I RMAd my board to have the CMOS chip replaced, and everything is fine now.