Q6600 G0 @ Default = Fail - Scooby snacks for someone to help me

[spluff]

Hi fellow Scanners,

My system was running stable so I decided to run Prime95 25.4 at stock to make sure the CPU was fine before I started overclocking.

The first time I run it 2 cores failed at around 1 hour. Temps seemed to get up to around 58 for 2 cores and 53 for the other 2.

I had my memory running at 12 4 4 4 at default voltage so thought this may be the cause and changed it back to the default 15 5 5 5.

2nd time I ran Prime it failed within 1 minute on 1 core.

I ran it a 3rd time and this ran for around 30 minutes with 3 different cores failing.

I thought it maybe the C1R, TM2 and EIST so I disabled them all and ran it for a 4th time.

I left this overnight and this again had failed on 3 cores 1 core after 12minutes and the other 2 cores after 1 hour.

I am really upset as I have been waiting ages to build this rig and have bought some good quality components (in sig)


One thing I noticed is that the CPU voltage in bios is 1.2625V, but in CPU-Z it was between 1.184 and 2.000V - which to me is very low!!!!!!!

I have 2 screenies:-





Please help me,
SpLuFF

PC Rig
-------
P182 case
500w Seasonic S12-500
Q6600 G0
Noctua NH-U12F cpu cooler
2x1GB Corsair Twinx XMS2, DDR2 PC-6400
Gigabyte P3C-DS3R rev 1.1 Bios F2
X-fi Fatal1ty sound card
750 Gb Western Digital WD7500AAKS
Samsung SH-S203 DVDRW

[nickp8]

This would be better off in the technical help section. It is not a Scan issue.

Nickp.

[fat jez]

dodgy RAM would have the same effect. Run a Memtest86 (google it) session and report back.

Cheers,
Stephen

[spluff]

I ran memtest for 2 hours and it didnt fail......

Im just wondering if it is due to voltage issues??????? the cpu-z is 1.184 which is alot lower than the 1.2625 set in the bios........

[IAmATeaf]

What version of the BIOS are you running, check out the mobos website and update if required.

[Nemz0r]

Try putting Vcore volts to say 1.35v in bios, see if it still does it; if it doesn't then reduce it to the minimum you can with it stable. Also try look for an option in BIOS called "Voltage Dampen" or similar and set it to Enabled.

[spluff]

running F2 bios......... there is an F4 bios available but it only says "PS2 compatability update"

I will try increasing the vcore, but wouldnt you thought out of the box it would run the Q6600 stable though?

and why is the CPU-Z voltage so much lower!!!!!! im not sure what is the correct value any more

[spluff]

Okay tried upping my memory voltate to +0.2 and it failed after 80minutes again.

I have now decided to do the following:-

I have updated the bios to F4 (seemed to go okay)
Reset to optimal settings
Changed the memory voltage to +0.3
Changed memory settings to 4 4 4 12
Changed cpu voltage to 1.3
Changed cpu/ram ratio to 2
C1E TM2 and EIST disabled
Changed bus speed to 300

So now my CPU is at 2700......

How does this sound?

I am currently running PRIME95 again (been running 15mins) - will post what happens.......

Thanks!!!!!!!!!

[stormy]

No offence but why are you overclocking when you are having problems? I would be tempted to reset *everything* to defaults with your latest BIOS flash and go from there.

Change settings one by one, not all at once, you wont be able to diagnose whats causing the problem if doing that.

Also do you have any problems actually running the machine or just in prime? Could it be an issue with the prime software?

Mike

[spluff]

hi mate.......... I know what you mean about doing 1 at a time, but just got really frustrated and did all the above........

Good news though - woke up this morning and Prime95 was running still - so going to leave it another 9 hours and see how it goes..........

My machine is a new build so didnt really use it much - but it was stable and had no crashes (but not really stressing it) - installing stuff etc.

[stormy]

Out of interest I have tried to run Prime on my C2D in Vista but I can't seem to set it up like you to get it running on both cores, I have tried running 2 instances but one core (even though it says its testing) seems to just idle even though I set the affinity. It also looks like you only run the program once? I have had to run it twice?

Can you give me a quick guide on how to set it up spluff, sorry to be off topic.

ta

[spluff]

yeah mate of couse........ if you download Prime95 version 25.4 - it runs all cores in same window......

http://majorgeeks.com/Prime95_d4363.html

[Nemz0r]

Had a similar problem to this when setting up friend's computer. Crucial Ballistix PC2-6400 4-4-4-12-24 wouldn't boot at default values. 5-5-5-15-30 would boot fine @ 800MHz, but spec is 4-4-4-12-24 @ 800MHz, 5-5-5-15-30 for 1066MHz!

I thought it was the RAM not being able to run to spec to begin with, however even after upping the volts from the default 2.2 to 2.3 and then 2.4, it still wouldn't boot at 4-4-4-12-24. I put the RAM voltage to 2.2, the default, and tried setting the Northbridge voltage from Auto to 1.4v -- problem solved .