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[SOLVED] CPU Temps and Thermal Grease

6434 Views 24 Replies 3 Participants Last post by  dai
Hey guys and gals,

I have an Intel Q9650 Quad 3.00 Core 2 CPU mounted on an Asus P5N-D (I think). Using core temp idle temps are 50c. these seem high to me and I have read so many conflicting things on the net about it. Do you have any idea about what the temps should run on this CPU? Intel says the Tcase temp is 71 whatever that means.

Also - is it possible I applied too much thermal grease? How much is enough or too much. I mean how can I tell if there is too much once the cooler is attached?

Thanks for any and all help!
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Re: CPU Temps and Thermal Grease

50C is too high for idle temps. Too much paste can be just as bad as too little.
Thermal Paste and How To Use It
Re: CPU Temps and Thermal Grease

Thanks for the link Tyree - I bet I have used too much paste. It mentions a different way to apply the grease if your CPU has an IHS. How do I know if my CPU does? I am about to power it off and let it cool while I have lunch. I will await your reply before I proceed with the new grease. I have three greases to chose from

arctic silver 5
Ceramique (by arctic silver)
Silver oxide compound by Startech
Re: CPU Temps and Thermal Grease

I prefer the ceramic paste because it is non-conductive but any paste will work. I use just enough to cover the CPU and still be able to see the printing show through.
Re: CPU Temps and Thermal Grease

oh then I DEFINATELY used too much. OK Ceramic it is. Will post results soon. Thank you again!!
Re: CPU Temps and Thermal Grease

OK well no luck. I removed that mess of grease, cleaned it thoroughly, re applied a SMALL ammount of paste as shown in the link and I have the same numbers, if not a few digits higher. I installed burnin pro and run it at 100% and the numbers go up to 66-73c depending on the core I am looking at. The cooler is a Zalman CNPS8000A. Any other ideas on how to cool this puppy?
Re: CPU Temps and Thermal Grease

PC Specs?
Pre-Built Brand & Model Number
Custom Built-Brand & Model of Mobo-CPU-RAM-Graphics-PSU.
Re: CPU Temps and Thermal Grease

Azus P5N-D
Q9650 Core2 Quad 3 GHz 95W
Zalman CNPS8000A CPU Cooler
4 GB Ram 800 MHz(Kingston - not sure of the part number but it's from their supported list)
PCI Express 256 MB Pny 7300 GT video card
Antec 3U Rackmount case (3U22EPS600) with 600W PS (RP-600)
Adaptec 1220SA raid card
2 - Wd 500 GB Sata HDD's
5 case fans
Re: CPU Temps and Thermal Grease

Do I need to post more specs or are these good enough?
Re: CPU Temps and Thermal Grease

the max cpu temp is 71.4c
Re: CPU Temps and Thermal Grease

The highest I have seen it reach is 72 C. that is with BurnInTest Pro running at 100% on the CPU and RAM. you say 100% is max? Why is that? From what I understand from the Intel website 71 is the max...... Not arguing just trying to learn.
Re: CPU Temps and Thermal Grease

i looked across on the wrong line 71.4c is the correct figure

you would expect to see 50c under load

if this is your psu it could be part of the problem as it is one of their low quality units

Newegg.com - COOLER MASTER eXtreme Power RP-600-PCAR 600W ATX from factor 12V V2.01 Power Supply
Re: CPU Temps and Thermal Grease

No - well I assume no. The PSU came with the Antec case so I would assume it is theirs. How is that CPU cooler I have listed? I sure do'nt want to fry this guy.
Re: CPU Temps and Thermal Grease

I just noticed the Rack Mount case. Those are restricted and very difficult to keep cool inside The PSU I see in the pic is an odd size unit and most likely not a very good unit. That combination could be your heat problem.
Well that is easy enough to test. I have an Antec twelve hundred gaming case and a 1000W power supply by them that I just bought for a gaming system. I will move the mobo to that case and compare results. Just for the record the room temp is 65 F . I will post my findings once I see what they are.

Curious. How can in inferior psu cause a high CPU temp?

OK No go. I moved the components to the different case and PSU and have the same results. It it possible that the temp sensors on the MOBO are defective?? Is there anyther way to tell?
Re: CPU Temps and Thermal Grease

Curious. How can in inferior psu cause a high CPU temp?
Insufficient power causes heat.

OK No go. I moved the components to the different case and PSU and have the same results. It it possible that the temp sensors on the MOBO are defective?? Is there anyther way to tell?
It is possible the Mobo sensors are defective.
Are you using the Bios to check the temps?
Re: CPU Temps and Thermal Grease

ok spoke with a friend and he suggest I check the vcore voltage on the CPU. I told him the motherboard was set to "auto" but he said check it and lower it if I can. The voltage range for that CPU is between .85 and 1.3625. "Auto" had the voltage set at 1.24 I changed it to manual and set the vcore voltage to 1.00. The temps are now down in the 30's. However when I boot I get a post error that there are some abnormalities... Is this correctable? I can't always be here to hit F1 to boot it.
Re: CPU Temps and Thermal Grease

As a point of interest and if you don't mind.........try setting the Bios to Default and see if the VCore Voltage goes back up.
Re: CPU Temps and Thermal Grease

what psu was in the other case

check all the push pegs holding the fan down are secure and that one has not popped up
Re: CPU Temps and Thermal Grease

PSU was an Antec TruePower Quattro 1000 - and the fan is a screw on - none of those crappy push pins.

Dai I will reset the bios to factory settings and report back. I should have thought of that.
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