3.0C Temps too high?

I just rebuilt my computer with a new mobo, cpu, ram, case and CPU heatsink/fan (see sig). When using the stock heatsink/fan combo, my system idled at ~35-37C and would shoot up to 50C under load (I could tell it was overheating, as the CPU would throttle back a couple minutes into gameplay). I removed the 1x120mm Antec exhaust fan, and installed the Panaflo's, as well as replace the heatsink with a SP-94 and installed a 92mm medium output Panaflo fan onto it. I also installed Arctic Silver 5. Using Prime95, my CPU seems to level out at 45-46C, and idles around 30-32C. Are these acceptable temps for this P4? This is the first Intel box I've assembled - I'd just like to know if anything seems out of the ordinary regarding my temps. I know the AC5 may take up to 200 hours to settle in, so hopefully the temps will drop somewhat in the future. I'm also considering lapping the heatsink in the near future, to further improve the cooling. Any input/feedback would be greatly appreciated!

yep, sounds just about right

though you *could* check open case temps against what you have to see how much you're really held back

also, if you're really going for tha last FREE 5 degrees celcius, pop your heatspreader; gives a free 2-3 degree boost and another 1-2 degrees from less chance of the thermal paste spread wrong

which then is the other thing you might wanna check for


hope this helps

Thanks for the feedback. I think I will remove the case paneling and see if there is any improvement. I have 2x120mm fans, I'd htink they'd push enough air, though teh Sonata doesn't neccessarially have the greatest airflow characteristics. Did you suggest to actually remove the heat spreader from the P4 CPU? How difficult is this to do? I would think that could easily destroy the chip. Interesting suggestion, I have never heard of anybody doing that before. I guess that would eliminate whatever thermal adhesive that Intel used to attach the thing, so I can see how it might improve cooling performance. I'll have to research that one a little more, just to be on the safe side. Don't really have the money right now to replace my CPU...

yea removing the heatspreader is a very easy way of destroying the chip, don't do ut unless you feel very comfortable. I think temps look a little high for a SP-94. you might want to make sure you put on the as5 right and try reseating the heatsink.

Thanks Stan. I'm running a medium speed fan on the heatsink. I rubbed the compound into the heatsink, then rubbed it off with a coffee filter, to make sure that the heatsink was "tinted". I put a small drop on the heatspreader, as per Arctic Silver's instructions. I could always re-apply it though, I might have got it wrong

well i dunno about how *other* people have removed their heatspreader, but i've got a pair of athlon 64's that both have their heatspreader popped off and i've gotten a 5 degree drop on one and a maybe 1-2 degree drop on the other...

i've also got a p4 2.0A from way back that i've popped off the heatspreader and it was doing pretty well until i replaced it with a barton, and now the SN85G4...


now, back on topic:

stan03, i would not doubt Blue4Life's application of thermal paste or if he mounted the sink on wrong because on the inherent design of the p4 mounting system and also how the thermalright clip works,...

BUT

that maybe something is wrong with either the airflow, or something is wrong with the sink itself, e.g. ****needs lapping****

so, Blue4Life, depending on how the open air temps go and how a remount of the heatsink goes,.. i would try if i were you to lap both the p4 heatspreader (only if you dun wanna risk the chip) and also the base of the heatsink...

but do remember that its a p4 so stopping at600 grit might be a good idea;

it doesn't have to shine, it just has to be ****FLAT****


hope this helps cause its another two things to try

sorry for the crappy pictures, but as you can see its not impossible and also i did come pretty close on one of them (the one with *more* rubber)

ooohh too scary to look @ modded 500$ chips just yet *turns head quickly and shields eyes!*

I don't know if I could bring myself to popping my heat spreader off Is there any way to safely lap the heatspreader without removing it from the core?

its actually not risky at all, but you do have to consider two thing when you do

1. DO NOT USE THE 754 RETENTION MECHANISM, YOU WILL CRUSH YOUR CORE

2. go SLOW when you do, not kidding ya, but i was *real* close on the first one cause i should've went MUCH slower


i'll post a pic of what you *should* use instead of the 754 retention mechanism, but its something in the neighborhood of

a zalman 7000A-ALCU (CU is **too heavy**), and the screws screwed down only half the way (use a few washers, maybe stack 3-5mm higher/looser than what it should be)


but yeah, if you dunno wanna risk it, its not that lapping the core has anything different or potential problems (well maybe except warrenty), its just that them pins,

yes,

the socket pins,

are ***extremely***


easy


to bend


and no,


its definitely not easy bending them back



but i bet ya you can't beat my 34 degrees load temp stock zalman air cooled with your heatspreader on there


i hope this helps, and sorry about the use of language/caps, just had to emphsize a few things, thats all


edit: oh yeah and my zalman's running silent mode too

oh wait, nvm mind that, you're on a p4, right...

umm,...


yeah, just take a piece of foam and stick ur cpu (pin side) into it and then rub away onto some sandpaper and you should be fine

yeah, but otherwise since you're on a p4, just disregard the previous post


and then foam really helps when you're lapping, cause then you bend less pins, but otherwise thats the best advice i can give right now


but otherwise its just like lapping a heatsink


so apologizes for the previous post


sorry

Just a hunch here.Didn't you say you put a Panaflo 92mm M1A
on the Sp-94 HS? That fan only puts out 48 CFM. I dont think thats enough to cool the HS properly.For lower temps after the TIM settles.Try a little higher CFM fan on the SP-94 HS.I put a
Panaflo U1A 92mm on my SP-94 yesterday.Max full load temp
was 37.5° C. Ambient temp70° F. My nickles worth,THE FANMAN

PS: Just FOLDING temp is 32.4° C. Same Ambient temp.50% CPU.

archilochus: Thanks for the insight. The fan that I purchased is here:

http://heatsinkfactory.com/cgi-bin/HFAstore.pl?user_action=detail&catalogno=CF-035

I don't really understand all this M1A, U1A stuff, the model labeled on my fan is "FBA-09A12M-BX" It puts out 48CFM and operates at 30dBA..... Hmmmmm.... Same airflow as what you stated I had in my post...... Maybe I just don't understand panasonic's modeling structure, but it's not making much sense to me. They have a high speed version of the fan I purchased here:

http://heatsinkfactory.com/cgi-bin/HFAstore.pl?user_action=detail&catalogno=CF-036

Is this the fan you would suggest using? Unless Panasonic has many different lines of these fans, then I'll really be confused. Thanks in advance for any clarification

im going to sound like a total n00b but how do you lap a heatsink, i have heard of this a few times and have allways just not botherd to figure it out.

I can beat your temps unlapped with heatspreader

Tnick24 said:

im going to sound like a total n00b but how do you lap a heatsink, i have heard of this a few times and have allways just not botherd to figure it out.

Click to expand...

Here's a list of links I found regarding heatsink lapping. It basically involves polishing the underside of the heatsink to make it more flat, so it transfers heat better.


http://www.amdmb.com/wiki/index.php?Lapping a Heatsink

http://www.overclockers.com/tips1015/

http://www.8ballshardware.com/articles/lapping/page1.cfm

http://www.modsynergy.com/Article 6.htm

http://www.ocfaq.com/article.php/overclocking/39

http://overclockersclub.com/guides/heatsinklappingguide.php

http://www.themodfathers.com/modfatha/articles/lapitup.php

Hope this helps

yeah good