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 Post subject: cpu running hot?
PostPosted: Thu Aug 26, 2004 6:20 pm 
6800 GT
6800 GT

Joined: Mon Jul 19, 2004 7:50 am
Posts: 88
AMD Athlon 64 3000+ stock clock speed
Gigabyte K8NS Pro mobo
Gigabyte 3D Cooler Pro HSF (which got very very good reviews in several magazines and articles.)

Yes I used AS5 thermal paste


I turned on the system, went into BIOS and it's idle temp is 54C. Fan speed was about 2800rpm. I cranked the CPU fan up to 4800 rpm and the temp only dropped a degree for a second then went back to 54C. Could the mobo be giving me a wrong reading? It should have cooled it enough to drop a few degrees at least by kicking the fan up.

Thoughts?


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 Post subject:
PostPosted: Thu Aug 26, 2004 6:23 pm 
Willamette
Willamette
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Joined: Tue Aug 24, 2004 3:23 pm
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Location: Not where i want to be......
cpu/mobo temperature readings can be inaccurate but they are not going to be completely off. Also that temperature 54c/129f seems high but it within operational limits...i just wouldnt be doing any overclocking. Consider trying to get the ambient temperature in your case down with some more case fans. Also you can make sure your heatsink is seated correctly


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 Post subject:
PostPosted: Thu Aug 26, 2004 9:00 pm 
Thunderbird
Thunderbird

Joined: Wed Aug 25, 2004 10:13 am
Posts: 881
Location: Toronto, Ontario, Canada
Well, jacking up the fan speed shouldn't really make that much of a difference if your case is not getting proper air flow. It's just like pushing around the same hot air but only at quicker speeds, it does nothing. Also, because of the specific heat capacity of metals used to make heatsinks, they can only dissapate a certain amount of thermal energy per a unit of time. I would suggest switching to a larger heatsink or purchasing a heatsink made with more conductive metals if you really need to drop your CPU temp.

P.S. Sorry to get off topic but as you can see, I'm really into Physics.


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 Post subject:
PostPosted: Fri Aug 27, 2004 9:40 am 
6800 GT
6800 GT

Joined: Mon Jul 19, 2004 7:50 am
Posts: 88
This heatsink has a copper base with heatpipes going up to the aluminum/copper fins and blower fans. With similiar cpu's in th reviews it cooled them to as low as 34C and 38C at idle temps. I did not have the side of the case attached, but would that make such a difference. I'm thinking about using TIM clean and re-applying the AS5


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 Post subject:
PostPosted: Fri Aug 27, 2004 10:01 am 
Northwood
Northwood

Joined: Mon Jun 28, 2004 7:38 pm
Posts: 2583
Location: Room112
again make sure the heatsink is seated correctly and is making good contact with the cpu. apply thermal compound but not too much.


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 Post subject:
PostPosted: Fri Aug 27, 2004 10:39 am 
6800 GT
6800 GT

Joined: Mon Jul 19, 2004 7:50 am
Posts: 88
I know it's seated correctly, a genius device gigabyte came up with assures that, i think maybe i put on too much as5. I was expecting really good temps, I lapped the HS to a mirror finish to get out all the imperfections. :(


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 Post subject:
PostPosted: Fri Aug 27, 2004 10:43 am 
Willamette
Willamette
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Joined: Fri Jun 25, 2004 3:33 pm
Posts: 1294
Location: Georgia Tech
Emwun Garand wrote:
I know it's seated correctly, a genius device gigabyte came up with assures that, i think maybe i put on too much as5. I was expecting really good temps, I lapped the HS to a mirror finish to get out all the imperfections. :(


paper-thin, man... paper-thin.

It needs only the tiniest bit to transfer all that nice heat.

I just put some AS5 on my p4c the other day (an upgrade from the AS3 I had) and bam, degrees dropped down a good 2-3 C.

But put on too much and it won't transfer the heat all that well to the copper. Feel that sucker up and if it's cold, you might want to re-apply that AS5


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 Post subject:
PostPosted: Fri Aug 27, 2004 11:41 am 
I'd rather be modding!
I'd rather be modding!
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Joined: Fri Jun 25, 2004 3:47 pm
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Location: Las Vegas
What the goat said. Plus, keep in mind it can take a few days for the AS to really start working its best.

Manta


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 Post subject:
PostPosted: Fri Aug 27, 2004 2:11 pm 
6800 GT
6800 GT

Joined: Mon Jul 19, 2004 7:50 am
Posts: 88
Well the HS is not cold, after 5 minutes of idle speeds the heatpipes were very hot to the touch. Is there anything else that might be causing it? I want to fit a small house fan next to the open case and see if having that blowing cool air will make any difference, if I dont see a difference then, I know I have a bigger problem.

First the Video Card explodes, then the DVD Rom doesn't work, now it's running hot. What friggin luck.


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 Post subject:
PostPosted: Wed Sep 01, 2004 8:15 am 
Little Foot
Little Foot

Joined: Mon Aug 09, 2004 7:44 am
Posts: 137
What is your room temperature?


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 Post subject:
PostPosted: Fri Sep 03, 2004 1:36 am 
Smithfield*
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Joined: Fri Jul 09, 2004 9:17 am
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if everything seems to be going down together i'd consider getting a new motherboard.


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 Post subject:
PostPosted: Fri Sep 03, 2004 5:33 am 
Little Foot
Little Foot

Joined: Mon Aug 23, 2004 12:46 pm
Posts: 146
kabronzky wrote:
What is your room temperature?


I am about to ask the same thing. Ever wonder why serious gamers and hackers still live in their parents' basement? It is the coolest place in the house. Heat rise and cool temperature fall, so the basement is usually pretty cool.

If you don't have AC, just open your window(s) and have one fan pushing out the hot air while the other fan sucking in cooler air.


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 Post subject:
PostPosted: Fri Sep 03, 2004 11:51 am 
Celeron
Celeron
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Joined: Fri Jun 25, 2004 7:13 pm
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Location: New York City
all it takes is some googling.

Read This

Read Through some of this

bios update?


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 Post subject:
PostPosted: Fri Sep 03, 2004 2:47 pm 
6800 GT
6800 GT

Joined: Mon Jul 19, 2004 7:50 am
Posts: 88
I googled to get here, why should I have to have an endless cycle of googling to get what I need.

BTW, thanks for the links.


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 Post subject:
PostPosted: Mon Sep 06, 2004 9:54 am 
6800 GT
6800 GT

Joined: Mon Jul 19, 2004 7:50 am
Posts: 88
updated the bios, at lowest fan speed and idle it runs at 34C and at high speed and running prime 95 it tops out at 46C.

Major improvement.

8)


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 Post subject:
PostPosted: Mon Sep 06, 2004 12:32 pm 
Celeron
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Joined: Fri Jun 25, 2004 7:13 pm
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Location: New York City
glad i could help.


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