700e unstability at 933

[MsNath]

VP6 single piii 700e up to 933 768mb ram.

My piii 700e is rock stable when idle at 933 and runs cool at 28c. But when I run seti full time in the background the temps go up to 38c and I start getting instability in other programs such as Internet Explorer and Micrsoft Word.

I used the default settings for the 933 chip that are in the bios.

Im thinking 38c isnt that hot so it shouldn't be a heat issue.

So am I looking at a voltage issue or does running seti continual in the background cause these types of errors? I get them in both Windows ME and Win2k platforms.

thanks

 

[Tim-]

I wonder if your problem may be in the thermal conduction rate. I have seen instances where a heatsink is adequate for thermal dissipation at the required power level, but because of the thermal coefficient of the heatsink material or thermal compound, the heat is not transferred into the heatsink fast enough. It's not really bad enough to cause it to get real hot, but the cooling isn't quite efficient enough...

I have seen this problem in solid state transmitters and at those power levels it usually results in device failure. With the lower dissipation of the cpu it probably won't hurt it, but it isn't optimum.

Might try a thermal compound like arctic silver if you aren't already, or perhaps a different heatsink. Or try blowing a large fan into the open side of the case and see if it cures it- that will tell you it's definitely heat related.

 

[Colin]

Following up on Tim’s thoughts, If you are going to try another heatsink compound, you should lap your heatsink by wet sanding with some super fine emery paper. No matter how much you scrub your heatsink, you will never get the old grease out of the microscopic channels. It was described to me like trying to clean out a waffle iron with a two inch diameter rope. The most critical area for a heatsink compound is inside those microscopic channels.

 

[Bigwave]

Probably just needs a litle voltage I think!Maybe just .05v will do it.

 

[Bigwave]

Probably just needs a litle voltage I think!Maybe just .05v will do it.

 

[marty]

Are you running a CPU cooler?? I would suggest you get Rain or SoftCooler if you are not using one.