unexpected temps?

[doc18]

Hey everyone, i just got an sp-94 and a 92mm fan, must've spent 9 hours taking everything apart, cleaning all the components of dust, installing it, and then putting it back together and tidying up the cables. However, I dont seem to be getting temps as low as everyone around here. I dont think im applying too much AS3, however, is there such a thing as applying too little of it? i know how some guides tell you to apply the thermal compound to the bottom of the heat sink and then wipe it off w/ a cotton ball, and it'll appear lighter than the rest of the hs because all the microsopic pores/valleys have been filled in. Could you just do that with the heat sink and/or the integrated heat spreader on the cpu and that would be the best? (enough to fill in what needs to be filled in w/o any thickness at all)

im just asking because i've left the computer on a few days, turning it off to cool the a.s. for a bit, and then back on, and the temps are pretty much the same as before. well, almost. when the pc was still on its side, i was gettin 43 on average, roughly 5 deg better than before w/ the crappy thermaltake spark 7. but now that its right side up, average is 45-47. i was expecting upper 30s... is this normal for a P4 2.4b, or is there something i could be doing better? i know its not a bad temp, but could i do something to get the optimum performance out of the cooling?

btw... room temp is 24°C, case temp is 28°C, and right now cpu is 48°C. Im using artic silver 3, pretty much paper-thin coating... its ok that im still using the same syringe from like... 14 months ago, right? Anyways, any advice from the gurus around here? You guys must know everything....

[Google]

[Troy]

I think its true a thinner layer of compound helps to get lower temps.
But I also believe that if it gets to thin this can be worse than having to much.
Because if the gaps are not being completely filled air pockets occur and this is not good for heat transfer.
I would make sure the hs is seated proper and try applying just a small amount more of compound than before.

Its sounds like the rise in temp. after standing the case up is caused by heat buildup in top of the case. In between the power supply and cd burner or whichever you have on the top bay, is a place that heat likes to buildup because it has a tough time getting out. A 80mm exhaust fan does a great job at removing this heat and will drop the case temps by fairly large amount which in turn will help the cpu run cooler.

If you want to gain the most from your hs, I recomend lapping it and using a 2000 grit sandpaper for the finish lap. This will give a mirror finish and removes any machine marks on the base of the heatsink. These machine marks can have an effect on the heat transfer from the cpu. Exspecially if not enough compound has been applyed.
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Abit Max3, Intel2.4@ 3.42, 9800pro 460core/380mem., 2 Raptors raid0

[[TN] Nathan]

No need to lap a heatsink in this situation.

What you have is a pool of hot air being trapped in the top of your case.

Maybe install a blowhole exhaust. Dropped my temps 4 degrees.
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[doc18]

ohhh ok. i'll see what i can do about that however, as far as acrylic goes, should i treat it any different than an aluminum or steel case? or could i just use a dremel or saw or something?
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Asus P5W DH (bios 1407)
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NZXT Lexa case

[meobius]

cut at low speed... other wise it just melts... i once spent five minutes cutting the same spot cause i was cutting too fast and it sealed up right behind me

[JayDubya]

yes, if you are using a rotary tool, then go very slow. otherwise, a jigsaw with a little water on the blade works pretty well.
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JayDubya aka JW Jay JD ^> ﺵ