I recently attempted to upgrade my CPU from an E6600 2.4ghz dual core to Q6700 2.66ghz quad core. I simply unplugged the PC and swapped the processors/heatsinks. Here's what happened:
- Windows loaded as normal and registered the new processor and 4 cores but then crashed after about 2 mins. I tried this a few times with the same result.
- Looking in BIOS I noticed the temp of the new CPU was being registered at about 95 degrees so I stopped trying this!
- Instead I reverted to E6600 processor (but with the new heatsink (which was the same as the old one anyway)) to see if heatsink was the issue. Everything worked perfectly.
So I decided to download latest BIOS version (aw9dv17) to see if this would help. This is where it all went very wrong:
- Booted the files in DOS from a bootable USB device and ran the update (runme.bat).
- The update seemed to be successful (it completed).
- It then automatically restarted the PC and froze at POST screen (cool new picture of a Samurai guy)
- I tried this a few times with the same result.
- Opened up and looked at the LED's on the motherboard while booting. Always froze at 56 on LED display (not a code listed in the ABIT manual or on the site). PC stays on but frozen.
- I powered down and reset CMOS (moved jumper from 1/2 to 2/3 and back) for 5 mins + removed CMOS battery and also 3 sticks of Ram (I heard that can help). But it still freezes at 56 of POST.
- The only acception is occasionally it will restart itself instead of freezing. If this happens it happens at code '52' of POST (or Samurai man).
- I tried this a number of times and the latest development was that the PC literally started powering down of its own accord before the freeze even occurred
- One thing I have noticed is if I TAB to the POST screen (instead of the not-so-cool-anymore Samurai guy) the CPU readings seem to change randomly. Once it said "2.40GHz (266x6.0, 1 CPUs)" and another time it said "2.40GHz (266x9.0, >3 CPU's). Another time It said "<10 CPUs". Weird.
Any ideas? Right now I don't care about the new processor, I'd just like my old PC running. Is there some other way to roll back to the old BIOS manually?
PC set up (running without a hitch since 2007, upgraded GPU and OS in 2011).
4x1G Crucial Ballistix DDR2 PC2-8500C5 1066MHz DC
E6600 2.4ghz dual core
NVIDIA GTX 460 768MB
2x SATA HDD