Overclocking Reboots

[Dancer]

I'm just testing the overclock potential of my computer using the Dual CoreCentre that came with my motherboard. I have a MSI P965 with Core 2 Duo E6320. I'm also running SpeedFan to log temperatures.

I've tried setting the overclock to 7%, then 3%, running lord of the rings at medium graphic settings. Each time a system shutdown is enforced after a couple of minutes.

Looking at the SpeedFan logs, temperatures go from around 32-33 to 40-42 celsius for the mobo and CPUs. The GeForce 7950 GT goes from 60 to 81 celsius. At that time temperatures drop a bit as the game is terminated and various program shuts down as the machine is shut off.

I'm guessing it's Dual CoreCentre or SpeedFan (don't think SpeedFan does shutdown the system though) which triggers the graceful shutdown, but I've tried to increase the temperature values in both programs and it still shuts down at the same temperature values.

Any idea what might be triggering a forced (but graceful) shutdown? Can Windows or bios do this?

Secondly, what is safe operating temperatures for the card and CPU if I can manage to find out what is triggering the shutdown?

Thanks in advance.

 

[ns400r]

You can have a CPU temp of 70ºC and still be stable.

What voltages are your CPU and ram using once you overclock?

 

[Rroff]

I'm guessing Dual CoreCentre, if a CPU is over stressed it would not cause a graceful shutdown, you'd instantly restart...

 

[Dancer]

Ok, thanks. I think I might just give up on CoreCentre and just try a manual overclock.

I'm a bit confused by the multiplier as shown in CPU-Z though. I currently have a bus speed of 266.7 MHz and a multiplier of x6 which is only 1.6 GHz. The E6320 is supposed to be 1.86 GHz. I think I saw the multiplier jump once to 7 which would have brought it up to the normal speed. I guess my MSI bios is doing some automatic tuning of the CPU speed by varying the multiplier. If I overclock should I try and find and disable this in the bios?

Also, is it important to try increase the FSB by 5MHz at a time, as the guide here says, or can I try a bit more initially since I believe the Core 2 Duo E6320 should be overclockable by a fair bit. Let's say to 333 MHz, for a CPU speed of 2.66 GHz, as I've read that tomshardware could overclock a Intel’s Pentium Dual-Core E2140 to this without even touching the voltage...

 

[Kelt]

Ok, thanks. I think I might just give up on CoreCentre and just try a manual overclock.

I'm a bit confused by the multiplier as shown in CPU-Z though. I currently have a bus speed of 266.7 MHz and a multiplier of x6 which is only 1.6 GHz. The E6320 is supposed to be 1.86 GHz. I think I saw the multiplier jump once to 7 which would have brought it up to the normal speed. I guess my MSI bios is doing some automatic tuning of the CPU speed by varying the multiplier. If I overclock should I try and find and disable this in the bios?

Also, is it important to try increase the FSB by 5MHz at a time, as the guide here says, or can I try a bit more initially since I believe the Core 2 Duo E6320 should be overclockable by a fair bit. Let's say to 333 MHz, for a CPU speed of 2.66 GHz, as I've read that tomshardware could overclock a Intel’s Pentium Dual-Core E2140 to this without even touching the voltage...

Yeh, do not use Corecentre. According to the bods on the MSI forums it's as buggy as hell, and they strongly reccommend against using it.

Also disable speedstep within the bios if you want to stop it dropping the multiplier.