Asus P5B CPU Upgrade problem

[kreacher]

I upgraded my CPU from E6420 to E8400 (E0) on the Asus P5B. According to Asus the P5B supports this CPU from BIOS version 2001 so I updated my BIOS beforehand. I had no manual settings on the BIOS for FSB/Mem speed, etc. (all Auto).
After plugging in the CPU on restart the system booted fine but my Pinnacle TV tuner was not detected so the case was opened and the card was put back in.
Then on booting the 'Avast' and 'APC UPS' icon were disabled and the task bar was showing a busy cursor. After about two minutes the taskbar becomes usable again and everything seems to work (except anti-virus and APC service). Also whenever I try to start Crysis Warhead it suddenly exits.

System:
Core 2 Duo E8400 (Rev. E0)
Kingston Value RAM 4x1GB (KVR667D2N5/1G)
Asus P5B standard (BIOS ver. 2001)

EDIT: I'm getting BSODs after running the system for a while.
I even tried setting the FSB, memory timings manually according to SPD info shown by Memset 4.0 but then the system won't even complete POST.

 

[BonzaiDuck]

Originally posted by: kreacher
I upgraded my CPU from E6420 to E8400 (E0) on the Asus P5B. According to Asus the P5B supports this CPU from BIOS version 2001 so I updated my BIOS beforehand. I had no manual settings on the BIOS for FSB/Mem speed, etc. (all Auto).
After plugging in the CPU on restart the system booted fine but my Pinnacle TV tuner was not detected so the case was opened and the card was put back in.
Then on booting the 'Avast' and 'APC UPS' icon were disabled and the task bar was showing a busy cursor. After about two minutes the taskbar becomes usable again and everything seems to work (except anti-virus and APC service). Also whenever I try to start Crysis Warhead it suddenly exits.

System:
Core 2 Duo E8400 (Rev. E0)
Kingston Value RAM 4x1GB (KVR667D2N5/1G)
Asus P5B standard (BIOS ver. 2001)

EDIT: I'm getting BSODs after running the system for a while.
I even tried setting the FSB, memory timings manually according to SPD info shown by Memset 4.0 but then the system won't even complete POST.

I've mentioned this aplenty about older boards, newer processors and newer BIOS revisions. In my case, ASUS published a stand-up problem-free BIOS to my 680i board for running E8x00 C2D's. I'm guessing that something else could be going on there.

Others should chime in here. That P965 is a pretty dated chipset.

I hope you unplugged everything before socketing the tuner card. Personally, I avoid filling four sockets with RAM, but a lot of gurus are doing it here now, if you look at this and other related forums. Maybe you want to test those RAM modules one or two at a time.

What is the minimum voltage required of those RAM modules? If you can enter the BIOS, set the voltage to a fixed value higher than minimum spec and below the maximum spec.

Somebody else might say to go through the CLR_CMOS procedure (before and after socketing the new CPU.) It wouldn't hurt.

OTHERS SHOULD CHIME IN, IF YOU KNOW ANYTHING ABOUT THE P5B, recent BIOS, or the board's ability to play nice with newer cores. A lot of us go through this sort of thing under similar circumstances, even if it "all shakes out in the end."

 

[ghost recon88]

Tried doing a clean Windows install? What are your CPU temps?

 

[tommo123]

i have the p5b del and went from a e4300 to a q6600 and it worked fine. i flashed the bios, restored optimized defaults etc snd set the bios again from scratch.

sounds like it could be a windows glitch imo though

 

[BonzaiDuck]

Originally posted by: tommo123
i have the p5b del and went from a e4300 to a q6600 and it worked fine. i flashed the bios, restored optimized defaults etc snd set the bios again from scratch.

sounds like it could be a windows glitch imo though

That's always possible, but it never happened to me . . .

 

[n7]

Yeah i've switched CPUs with my P5B Deluxe many, many times.
E6400, E6300, E6600 (two different ones), Q6700, E1200.

The fact that you cannot set the speed/timings manually tells me something is wrong, perhaps memory related.

You might want to check out your RAM situation...up NB voltage a notch due to your four DIMMs perhaps, & run some Memtest86+.

Worst case scenario, try a clean install, though it shouldn't really be necessary.

I assume you did reset CMOS first, right?

 

[kreacher]

Okay I'll try to answer all of those -
1) I unplugged the all the devices from the motherboard before inserting the CPU. But then put them back in before the first restart.
2) I tried the RAM modules 2 at a time (not one at a time) but there was no change.
3) The RAM modules require 1.8V so I tried to set that manually too but as I mentioned after the edit that after manually setting RAM timings the system won't complete POST.
4) I did 'load default BIOS settings' quite a few times during all my attempts to get it to work.
5) I tried a Windows as well as Ubuntu reinstall but they failed as well. Ubuntu keep giving 'segfault' while Windows 7 beta install reboots while initializing.
6) I did not try a clean XP install as I did not want to format my main OS but I will give it a try too.
7) My CPU temp is around 48-50C after boot-up (its normal for the hot weather).
8) I tried running Memtest86+ during one of the different memory settings I tried and it gave an error at 757.3MB during the first pass. I will run a complete pass with all 4 modules once.

 

[n7]

Originally posted by: kreacher
8) I tried running Memtest86+ during one of the different memory settings I tried and it gave an error at 757.3MB during the first pass. I will run a complete pass with all 4 modules once.

And there's your answer more than likely.

You should be able to run that all night for multiple passes without errors, ever.

 

[kreacher]

What puzzles me is why did this error crop up now. I ram Memtest86+ when I bought the system and when I upgraded the RAM to 4GB last year. Also my system has been running for the past few months with the same RAM. Right after upgrade it started acting weird with the freezing for 2-3 minutes on boot and the anti-virus/ APC service being disabled.

So now I'm thinking of getting a new motherboard as well as RAM. Thinking of going in for a P43 based board with 2x2GB DIMMs. Any recommendations?