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Problems Overclocking AMD 2700+

R

Revo

Member
I recently overclocked my Athlon 2700+ to 2.5GHz using a core voltage of 1.825v. Windows XP loaded successfully however,upon running my virus scanner my PC mysteriously switched off while the scanner was running and would not switch back on. I have a Vantec Aeroflow heatsink and fan combo with Acrtic Silver 3 TIM which should have sorted out any problems with overheating. So, my question is what went wrong? Can anyone provide me with any advice?
 
OK it may have overheated but why doesn't the system turn on? Also, I am using an Asus A7N8X Delux motherboard which affords CPU overheat protection.
 
How did you guess?!! But the thing is that the LED on the motherboard shows that power is being supplied. Therefore, the PSU may not be damaged. Moreover, it has a rating of 400W which should have been able to handle the "surge".
 
Originally posted by: Revo
How did you guess?!! But the thing is that the LED on the motherboard shows that power is being supplied. Therefore, the PSU may not be damaged. Moreover, it has a rating of 400W which should have been able to handle the "surge".
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rating of 400 watts...<yawm> the ACTUALL wattage is prolly in the low 200's, check the side of the powersupply. quality over total wattage when buying a powersupply.
 
Try resetting your bios to default parameters (via the clear bios jumper). But if you were not paying attention to the cpu temp, your processor could be fried - either by too much voltage, or too much heat.
 
dont think the cpu will be fried.. dont scare the man like that ;D... just check the psu and dont push your cpu so hard
 
clear the cmos

and yeah... quality over quantity...

it don't matter if you have like 1000W generic psu...

there have been tests doen before on generic psu's that blew up once they hit their peak power output..

 
Firstly thanks for all your replies. Secondly I've already cleared the CMOS to no avail. The problem with the burnt PSU theory is that the mobo is showing that it is being supplied with power via an LED. However, the CPU could be fried but that shouldn't stop the system from swiching on should it? I don't think the CPU is fried as I recently removed it to check for such an occurance. I could not see any signs of a damaged CPU but then I'm not an expert on these issues. Is a burnt CPU easily identifiable i.e. would you be able to see or smell that it has been burnt?
 
Originally posted by: Revo
Firstly thanks for all your replies. Secondly I've already cleared the CMOS to no avail. The problem with the burnt PSU theory is that the mobo is showing that it is being supplied with power via an LED. However, the CPU could be fried but that shouldn't stop the system from swiching on should it? I don't think the CPU is fried as I recently removed it to check for such an occurance. I could not see any signs of a damaged CPU but then I'm not an expert on these issues. Is a burnt CPU easily identifiable i.e. would you be able to see or smell that it has been burnt?
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look for brown/black scorch marks
 
sounds like you pushed it too hard. remove power from the system remove cmos battery and clear cmos jumper dont apply power for like 5 min then try it mine seems to reset itself after like 5 min no power
 
1.825V on air is insane, you need to back that down to around 1.75 or so, the Aeroflow is good, but nowhere near that good. My 2500@1.7V hovers around 50-55C under full load (F@H 24/7) with an Aeroflow and an A7N8X Deluxe. That also happens to be a very nice OC on that 2700, but don't expect it to be too reliable unless you get different cooling like a monster Thermalright or watercooling.
 
I've inspected the CPU and no scortch marks anywhere. I've also reset the CMOS as instructed but still nothing. The reason why I had to take the volts to such a high level was that the system wouldn't even boot up at 1.7v and was quite unstable at under 1.8v. Monkey seen as though you have a similar system to mine, how did you get your setup to run at 2.5GHz with a core voltage of 1.7v? Also, if the PSU was burnt out should that green LED on the mobo be still on?
 
Mine is a 2500+ (1.83GHz) @ 2.2GHz not 2.5GHz. I wish I could get this thing up to 2.5 🙂.
 
Originally posted by: Revo
Firstly thanks for all your replies. Secondly I've already cleared the CMOS to no avail. The problem with the burnt PSU theory is that the mobo is showing that it is being supplied with power via an LED. However, the CPU could be fried but that shouldn't stop the system from swiching on should it? I don't think the CPU is fried as I recently removed it to check for such an occurance. I could not see any signs of a damaged CPU but then I'm not an expert on these issues. Is a burnt CPU easily identifiable i.e. would you be able to see or smell that it has been burnt?
Click to expand...

A cpu I had died a few months ago. However, when I took it out of the motherboard and inspected it closely, there were no burnt or blackened marks. You wont always see a visible sign of damage.

 
Thanks TonTod much appreciated. Maybe that is why the damn thing won't turn on? Is that what you found, that your PC wouldn't turn on?
 
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