If you can overclock to a certain amount

[Philippine Mango]

If you can overclock to and post at 3.8GHZ on a P4C on default voltage but it isn't stable and increasing voltage doesn't increase stability much but allows for overclocking all the way to 3.97ghz, what is the culprit for the instability? (Memory is running on a divider). Increasing the voltage allows for a small improvement from default voltage max of 275MHZ FSB POST to 284MHZ FSB POST and nothing higher. Is it the chipset? Not enough cooling on the chipset? The CPU isn't cool enough? What?

 

[Lonyo]

Maxed out the overclock?

 

[Philippine Mango]

I lowered the voltage of my processor and my overclocks are actually more stable now (to an extent), would this mean that the mosfets are running too hot? Cause they go from 30 to 60C+ when I raise the voltage from 1.6 to 1.7 and the processor is only running at around 45C at both voltages.

 

[Unkno]

doesn't necessarily have to be the temp of the mosfet....could be your psu


if you think its you mosfet, a cheap and fast way of testing is just opening the side of the case (and if possible but not necessary) get one of those huge fans and blow into it

 

[Philippine Mango]

I took a infrared reader and read the temps of them.. I can't stick a big fan on there so I tried using a small 40MM fan found on 486s but it didn't help.. I think it's because I don't have a heatsink. I heard about this guy who ran his P4p800 for a year while overclocked and it got burnt in that area despite having a fan there so he RMA'ed the board and put some heatsinks on them..

 

[theteamaqua]

northwood is not that good for OCing, also a better heatsink/ cooling might help

 

[Conky]

Sounds like you need a better, more stable, power supply.

 

[Philippine Mango]

Originally posted by: Crazyfool
Sounds like you need a better, more stable, power supply.

Antec True 480 isn't stable? The voltages look clean to me.... Whats *really wierd* but all of this is two things,
1. Past 1.675v, my overclocks become more unstable, mosfets get hot
2. Past 1.675v, my voltages actually significantly more stable (they won't fluctuate AT ALL, period!)
3. But when they're under 1.675 they're less stable voltages but the overclocks are more stable, to an extent... I've never noticed my voltages to fluctuate more than .3v

Also BTW, I have a gallatin core, not a northwood. (Suppose to be northwood but I have M0 )