Help! Overheating mosfets

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18 Jun 2005
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Just setup an Abit aw8d 975 mobo which uses heatpipe cooling and heatsinks on various mosfets. I have my cpu voltage only mildly up from 1.3 to 1.4v, and very good cooling in my case - Akasa eclipse with ambers, plus the sidepnael with fan. Running the sandra burnin, even at 4.6ghz+ my cpu never goes over 50 degrees !! But the pwm temps go mad. 3 of them hit 90 and one goes to 110. I read up on it on the abit forums and they are the temps of the mosfets designed to work up to 150 degrees. I wonder is there any danger. For now I have turned off the monitoring of these because even at stock they are close to 70. Any advice anyone ?
 
The temp sensors on these Abit boards are carp. Turn it off and don't worry about it. Check out the Abit forums for the LG-81 issues - it'll run fine at 75-80C then suddenly flip out to 117C and, if you have the BIOS monitoring turned on, then it shuts itself off.
 
Cheers for that.

I found pushing the fsb up increases the pwm temps more then raising the multiplier.

I have now figured out how to keep it below 90 degrees and get a very respectable 1ghz overclock on my 3.73 extreme cpu :)
 
I used a Thermalright active cooler amongst other things - but there is no doubt that cooling the CPU is not the biggest issue with overclocking Intel CPUs at the moment.

Maybe we need a thread/sticky where people publish their overclocks, settings and PWM temps so we can identify the least problematic boards?
 
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