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replacing p4 retail heatsink makes cpu hotter?

M

mattyrun

Member
i just replaced my retail p4 heatsink/fan with a coolermaster ihc-71 and used arctic silver 3 thermal compound. it started up and was about the same idle temp as with the retail heatsink. now torture testing it though it's at 59 C, while with the P4 retail heatsink fan did aroudn 55 C at this time. i know i shoudln't except instant results untill it gets a little burnt in, but starting off higher is not a good place to start with a replacement. i was wondering if maybe i did somethign wrong or anyone has any ideas about what else i can do... i mean for higher temperatures, my computer sounds liek an airplane taking off now.
 
did your room temp change?
did you apply the right amount of AS3? thin layer...meaning nothing being squeezed out the side of the chip...
are you running the exact same program as before?
 
Remove processor and HS, thoroughly clean ASIII off both pieces

Reapply the ASIII, in a very thin, almost hazy layer across the processor

Reinstall the HS and cross your fingers

I am betting that your current ASIII layer is too thick
 
What did you use for thermal compound? Did you clean your chip's heatspreader really well to get the old pad off? Is the heatsink loose in retention bracket? Is the retention bracket loose?

If you did the thermal compound right, try laying your system on its back and check the temps to see if the weight of the thing is trying to pull it off the chip.

Tell me you took the plastic off the bottom of the Coolermaster........🙂
 
tonight i'm going to try taking out the cpu and doing thinner layer of as3, mine was kind of thick actually. not hazey in the least. more like prey paint covered. i did take the plastic off. hehe. ya, it's doing better now, down to 55 C at torture test after 5 hours. do i need to take it all off and reapply or just take the cpu out and try to get the as3 that's already on their thinner?
 
does the gigabyte heatsensor detect a little higher than actual? i have a ga-8iexp motherboard. i know some people say theirs does. jsut checking.
 
Thats a possibility also, but you were comparing it to the retail and an all copper heatsink with a vacuum cleaner on it should give you much better results than the quiet retail. You should try pushing on the heatsink a little while your monitoring temps to see if it is somehow loose.
 
i had way too much as3 on it, i didn't even notice how thick it was untill i took the heatsink back off. so i took it all off with some isoproypll alcohol and then reapplied it to the cpu, really really thin coat of it. now i oc'ed to 150 fsb to hopefully stress it more, and i'm running 30 C idle and low 50's (50 - 53 C) during Prime95 torture test. I'm pretty happy with that. i wonder where i could push the fsb to considering i only have 2:1 ratio for my ram.
 

Re: CPU heat => hotter on Gigabyte boards?

Technically, it shouldn't really, as the thermal sensor for the CPU isn't on the board, but integrated on the CPU (it uses it for clock-throttling for instnace) - so the mobo doesn't really have much to do other than just read out that info ...

Now, as to whether Gigabyte's monitoring software somewhere adds a few degrees to this or misinterprets this data somehow, I
can't say, soz.

Small tidbit aside.

- Shathal.
 
good to see you with low 50s now...told ya about the AS3...now you know...you should be getting even lower temp once as3 is settled in...have fun...
re: how high you can take your fsb...
only you can find out...up vcore...set memory timing to by spd or lowest...turn off all unuse features like USB...etc...
 
i think i found my problem. i torture tested with prime95 for about the last 24 hours straight ((fsb 150 2.26 @ 2.56)) , and my temp started out great, but then went sky high again ((58 .. 60 C)). so i turned off the torture test to see what it would idle at. i left my computer alone and then looked again in about an hour... 49 --> 50 C =\ idleing. so i got pretty mad and took the side of my case off to just look at it... so once i take the case off all kinds of hot air came out, and instantly my temps went down to around 40 and then slowly kept working way down to low 30's idle. ((that was this morning)). so today i left my case side off and torture tested all day and still going as i type, and it's 43 C. so i found my problem is not my as3 or heatsink or even it's installation anymore, it's the air circulation in my computer. i have 2 case fans in it, one in teh front of it, one in the back taking up all my pci openings in back of case. the one in front is blowing backward, but both are on the bottem of my case. and the top area where i have my cpu, heatsink fan, and my northbridge might have been made into it's own area by the video card and hurt air circulation. i included a little diagram so you guys could see where things are at. the cpu heatsinkfan is so loud i don't really want to open up the case too much. so i think i need to get better air circulating in there by changing the place i have the front case fan. i included a diagram so you guys could see the location of thigns.

http://members.verizon.net/~vze3qky3/case.jpg

 
I always have found it beneficial to have a fan blowing air out of the case at the same height as the processor. Looks like you may have the processor stewing in its own heat while all your cool air is going in and going right back out. Cool air doesn't rise on its own, it needs to be drawn up there.
 
i was thinking the same thing. that's why my case is staying open untill i get my fan situation fixed. i think i'll put one right under my cdrom and ahve it blowing towards the cpu, and then one mounted on back blowing out... that should do the trick shouldn't it? and with no cards in tehre except my video card, i don't think it needs cooled down there. the power supply is also right by my cpu up there, between that the cpu and northbridge fan all trapped up there by the video card, it hink my problem was that the heatsink was merely ciruclating the alread hot air through it again.
 
i moved the 2 case fans up, one under cd-burner, other on back of case at same level as other fan and the cpu, now i idle at 32 C. haha. amazing.... i'm going to torture test it all night and see what the temp looks like in the morning, but i'm very impressed with it right now. the as3 and the coolermasters ihc-71 have turned out to be a great match!
 
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