PC randomly rebooting after flashing the BIOS and changing the RAM timings

[Oobie-]

Ok I changed them all to disabled.
I changed the vcore voltage to auto
There is nothing on the Geil website about those values
The sticker on the RAM says 4-4-4-12 2.1v so Im pretty sure it runs at that.
I shall run orthos overnight again and run memtest in the morning when I turn off USB legacy support.

Also after I took out the CMOS battery and set the jumpers and booted back into the BIOS, when I changed the "configure DRAM timing by SPD" to disabled the timings were 5-6-6-15. So I put it back on enabled and changed the DRAM freq to DDR2-533

CPU-Z reports the FSB: DRAM ratio is 1:1 with 4-4-4-12 now.

[Clunk]

SPD should be disabled and the timings manually set, but you should be ok.

[Oobie-]

Ah right ok. I shall do that.

I was playing cs just now with everything default and set like you said. And it crashed again. Could it be a overheating problem more than anything else?

[Clunk]

Did you do a fresh install of windows when you installed the motherboard? Have you installed the latest chipset drivers? Soundcard driveers (if you have one), graphics drivers etc.

Heat could be a problem, best way to test this is to take the side of the case off, get a desk fan and blow it in there and play a game, see if it crashes.

What temps are you getting again?

[Oobie-]

Fresh install - Check
Updated Drivers on all accounts - check
Desk fan, will do.

CPU Temps are about 53-55C on load and the mobo is about 41 - 43 when I get into the BIOS after the crash.

[Clunk]

try taking off the heatpipe cooler and youl probably find that the northbridge isnt making proper contact, you may need to bend the pipe a touch so it sits flat and reapply some thermal paste. An unfortunate Asus quirk.

[Oobie-]

Ok. I was just doing simple browsing while on vent and then PC probe popped up a msg saying "Vcore voltage warning" and then it listed each voltage rail and then rebooted.
So I have upped the vcore to 1.2500 and I also checked the temps. CPU was at 43C and the mb was 40C.

[Clunk]

put it on auto while its at stock speed.

Have you tried memtest yet?

[Oobie-]

The vcore was on auto when that happened.
I was attempting to just play some games and relax, but I how long do I have to run memtest for?

[Clunk]

Run it overnight if you can on test 5. You can grab a bootable cd image from the memtest website, or its on UBCD.

[redlight]

Dont want to step on your toes Clunk as your OCing knowledge is way better than mine. But can I say I am running the same ram and it did not like 2.1v kept crashing put it down to 2.0v and it runs fine.

[Clunk]

Does your ram definately do the 4-4-4-12 timings? If thats what it is rated at, set it to that, and whatever voltage it is supposed to have.

No worries mate.

[redlight]

I did the same read 2.1v on the sticker so thought that will be right. Geil says on their site Working Voltage : 1.9-2.3V so I guess trial and error depending on the board you are using.

[Oobie-]

Ok well it cant be heat issues, as I had a desk fan pointing at the Nbridge hs/ ram. The ram was cold to the touch! and the Nbridge was slightly warm.

Redlight - is it running at 4-4-4-12?

Btw I appreciate all your help clunk. Is there a chance you think it could be a faulty mobo or RAM?

[redlight]

Yes

[Clunk]

Did you do memtest yet?