P3 700@980 1.8v at 45-48C full load... too hot?

[Twisted Evil]

p3 700@938 @ 1.85v (funny cusl2-c thinks 133 bus is actually 134) w/ an alpha pep66 w/ delta 30cfm fan runs 28-32C idle and about 38C after a long Q3 session.

[Sunny129]

since you are only hitting 45-48C on a full load, then it should be ok. i've been asking the same thing in another forum b/c i just got a P3 700E cC0. as far as this copper shim thing goes, is this something that is needed while using the colling device you are currently using, or could you go without the shim? if you have something in between the heatsink and the CPU, it would be a good idea to put thermal compound on both sides of the shim, thus ensuring good heat transfer from the CPU to the shim and then from the shim to the heatsink. remember that there are always imperfections on the surfaces of CPU cores, heatsinks, and shims. these imperfections allow air to sit in the pockets created by these surfaces that are not quite flat, though it may seem that they are flat to th naked eye. air is a very poor heat conductor, and will keep heat from dissipating through the shim and out through the heatsink. i am running my P3 700E @1036 mHz @ default 1.7v Vcore. with SETI@home running all the time, my CPU temp never goes above 42C, and most of the time its at 41C. without SETI running, my idle CPU temp is about 31-33C.

by the way, when i first set up my system and ran it i was hitting a temp of 48C also, but i soon figured out that it was due to the fact that i had forgotten to remove the dow-corning thermal paste (the white stuff that comes standard on the Golden Orb) before i applied some arctic silver. i found out that two thermal compounds together act as an insulator, trapping all kinds of heat in my CPU. this drastically changed when i took my Gorb off and cleaned the white stuff off, reapplied some arctic silver, and started up my system again...

[Raymond Kim]

Ok, I rechecked everything and my temps are still high.

My p3 700 is a 980 at 1.8v. I'm getting 41C at IDLE!!!!

Here are my points:

- I redid the pasting. I have a coppershim between the heatsink and the cpu core, and my understanding is that I DON'T need to put paste in the contacts between heatsink/shim and shim/cpu. I only need to apply the paste in the contact between the heatsink and the cpu. Is that correct?

- When I applied the paste I twisted the cpu and the heatsink together to squeeze out all the excess paste and air through the side. Isn't this the correct way to apply paste?

- My fan is SUCKING air OUT of the heatsink. Should I have it the other way around? My fan is a Y.S. Tech running at ~4100 RPMs. Do I need better?


What do you guys see wrong here so far? Do I need a better 60mm fan? Please help, I don't want my cpu to fry any time soon.

[dadx2mj]

Raymond does you case have good air flow you mihgt be supprised how much this can effect CPU temp. The only other thing I can think to try is to remove the shim just to see what happens with the temp. It could be keeping the heat sink from seating properly it is at least worth a try.

[sbp]

"I only need to apply the paste in the contact between the heatsink and the cpu. Is that correct?" Yes.

"Isn't this the correct way to apply paste?" Yes.

I also have the YS tech fan on my Alpha PEP66t sucking out the air as Alpha recommends.

You can get a better 60mm fan and a better cooler like the PEP66T or Globalwin FOP38 and see what result is.

Raymond are you having any problems with lockups or anything else? If not I wouldn't worry that much about this. These temperatures are within specs.



[Edited by sbp on 01-09-2001 at 02:47 PM]

[Raymond Kim]

I think I have good case cooling. There is one 120 mm fan in the front sucking in cool air with another 120 mm fan in the back expelling out all the hot air.

I am having rare lockups, yes, but it only happens like once every few days. It still worries me though.

[GAZZA]

Raymond try installing the fan blow across the heatsink rather than extracting it just for test purposes to see if there's any dif at all ?

[nealh]

Raymond:

I have a piii700@945 at 1.65v with a GORB on a slotket.

My idle 39-40C
Full load is 46C

These temp are within spec from Intel ...I have been running this retail chip like this for 6mo no a single problem.

I have wondered if the slotket and PC AlertIII are giving true temps but the bottom line is you are fine.

[Schwartz]

I have an Alpha 6035t and it had the plastic feet made into the base of the sink. Well these feet wouldn't let my CPU make full contact with the sink for some reason and I know the sink was installed correcly. So what I did was order a shim and cut the feet off with a razor blade. It made a huge difference. Now my P3-800E running at 1016 with 1.75v stays at a nice 35c under a full load.

[Speck102]

I have a PIII600@733 with a GORB and I get 42C at idle. I think that this has something to do with my crappy slocket, I should really get a fc-pga mobo.

[Garnet]

Raymond, where are you getting your temp readings? From the bios? That is the reading I would trust. Software temp monitors are not always correct as I found out with Asus probe.
I don't think your temps will hurt your CPU. I ran at 50C for quite sometime before installing an Alpha Pal35 on my P3 700@973. I now have a full load temp of 40C.