extreme heat issue - a8n sli + a64 3500+

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steamnputer

Member
Mar 3, 2005
139
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I agree that without outside confirmation the number is just that a freaking guess... So the real fix needs to come from MSI (never said otherwise).

The problem is that every time I reboot the system reports a different cpu offset. So which one is right? If I cold boot and the offset is 61 then my temps will consistently report 6 degrees higher than if I reboot after a few minutes when the system is warm (offset of 56).

If I remove the variability of the offset then my idle and load temperature are consistent from boot to boot. I can then use them as a RELATIVE reference (e.g. is my CPU hotter than it was before since I raised the voltage to get to 2.7 Ghz)

I used a batch file to log my offsets. Over the course of 3 weeks and 178 reboots I found the following:

Cold boots always between 60-63 (average 61).
Warm boots always between 51 -58 (average 56)

[/quote]

There I can understand what you going for, but you are still only guessing, if your MOBO uses C&Q for instances that ccould possible make things worse. Does the winbond have some sort of voltage bias that you can change to get it a llittle closer to what you think is or have confirmed to be the HSF temp.


like a PID controller uses if you are fimiliar with them, to adjust the deadband and sensor error.

 

htaddict

Junior Member
Mar 16, 2005
18
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0
If I was really worried, I would get a temperature sensor as close to the CPU as possible and use that as a reference to calibrate the offset.

Still a guess... just a closer one... since you can't duplicate the position of the temp diode in the cpu.

I don't ever use C&Q (certainly not while OCing).

For the time being I am not willing to push my voltages much beyond 1.55v on my winnie 3500 (can't afford a new cpu at the moment)... With that scenario the best stable OC I can get is 2.5 Ghz.

In this scenario my temps don't worry me even using the worst case offset number.

For me this is the end of the science project... I just wish MSI would fix it in the bios.
 

steamnputer

Member
Mar 3, 2005
139
0
0
Originally posted by: htaddict
If I was really worried, I would get a temperature sensor as close to the CPU as possible and use that as a reference to calibrate the offset.

Still a guess... just a closer one... since you can't duplicate the position of the temp diode in the cpu.

I don't ever use C&Q (certainly not while OCing).

For the time being I am not willing to push my voltages much beyond 1.55v on my winnie 3500 (can't afford a new cpu at the moment)... With that scenario the best stable OC I can get is 2.5 Ghz.

In this scenario my temps don't worry me even using the worst case offset number.

For me this is the end of the science project... I just wish MSI would fix it in the bios.

On the A8N you can not OC while in C&Q, its one or the other, and the voltage on the winchestors is locked at 1.55 now no higher, not that you really need too as far as I can tell. Its really not set up to OC succesfully, I don't care becuase its got way more power then I can ever use at the cpu. Most of the bottle necks are elsewere in the system(at least mine) maybe dual 6800U's would make reconsider that but, then again if I am gonna spend that kinda of money I would buy the fx55+ and some 15k drives.