Hot PIII650 not overclocked

[hagbard]

I'm a bit baffled. Motherboard Monitor5 and Asus Probe both show my Pentium III 650 cpu running at idle around 40c, 58c on boot. The motherboard itself is running at 26c (consistantly). Room temp is around 20c. My Elan Vital T-10 case has three fans, front blowing in, back blowing out and the power supply fan. The CPU fan/heatsink is stock Intel. Here's my setup:

Asus CUSL2-C motherboard;
PIII650 (not overclocked, 1.65v);
ATI AIW128
Linksys 10/100 lan card;
3Com lan card;
SB Live.

I have the IDE cables neatly bundled up as to not block airflow, and by looking at the inside of my case, it should be well cooled. Any ideas?

 

[RichieZ]

Thats cause the intel stock HS/FAN is a piece of junk. I have a 550E@733 and it would reach up to about 45C after gaming, idled around 32. Then I got a ALpha FC-35T and it idles about 26C now, full load it like 30C. Much better, definelty louder tho, but not that loud

 

[hagbard]

I read Tom's Hardware guide, and the stock Intel *seems* to be one of the better ones out there. If I need to, I guess I'll have to fork over another $30 to my suppler and get a "better" hs/f. Strangely though, I decided to overclock it this evening (to 780mhz) and its actually running cooler (about 2 degrees c).

Thanks.

...hag

 

[kyoshozx]

First remove the thermal pad, and apply some thermal paste. That should definately reduce the temp. If you want also lapp the heatsink first. It's free try that first to see if it'll reduce your temp, if it doesn't then you can always get a new heatsink.

 

[hagbard]

The first thing I did was remove the pad and replace it with heatsink compound, so that's not it. What is "lapping the heatsink"?

..hag

 

[toph99]

the one on tom's hardware guide used a heatsink for the 800mhz+ PIII's, and their testing method is not accurate. if it isn't overclocked, i woudln't worry about it, but if you want, check to make sure it's sittign well on the core, and that you don't have too much/little thermal compound(unless you're using a pad) is the heatsink warm when you touch it? if it is, maybe getting a more powerful fan will help a little, or a larger heatsink.