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Help with cooling the D830

post #1 of 8
Thread Starter 
Hey all the masters here, i am using a intel D830 with intel 945GNT motherboard, and just bought a zalman 9500 with AS5 to cool my cpu down, it really helps to cool the temp from 61C(intel stock HSF) to 47C idle, 75C(intel stock HSF) to 69C loaded, and i already took out the case cover, and my room temp is around 28c - 30c
The zalman 9500 dose it's job, but i feel that 69C is still a bit High for the cpu, because my job require me to do lots of heavy rendering with my pc.
So is it possible to lower the loaded temp abit more?

than you very much!!
post #2 of 8
I think you may have put a little or too much AS5 on the CPU because those temps are high for a Zalman 9500. Maybe try reseating and applying a new AS5 layer, after removing old AS5.
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Da Gallardo
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by ckp64
I think you may have put a little or too much AS5 on the CPU because those temps are high for a Zalman 9500. Maybe try reseating and applying a new AS5 layer, after removing old AS5.

i've done that already, but no changes. Is it because the exhaust fan that loactes at back of the case too small? the fan is smaller than 80mm but bigger than 70mm
post #4 of 8
My brother ran into the same kinds of issues with his 840 on an Intel D945GTP.

First......the bios fan control for that chipset wont run the fan fast enough no matter what you do to it. If you have it plugged into the motherboard and under bios fan control then turn off cpu fan control in the bios and install speedfan to control it. At least you can control when the fan speeds up that way.

Next......he put a blow hole in the top with an exhaust fan and turned his front fan to exhaust also. So everything was on exhaust except the air duct in the side. The air duct was home made using a 1 liter plastic bottle velcroed to the side vent.

Even after all of this he didn't see much drop in temps. But the top end was a little lower than yours.

It wasn't until he threw the D945gtp into the dumpster and replaced it with a MSI P4N SLI-Fi that he got Idle of 36c and load of 48c. All he did was change the motherboard. Oh.....when he did that his performance and benchmark scores increased by 30-40% too.

So I would say..........give up on tryign to cool that CPU on an intel board.

BTW......he had an Antec thermally advantaged case also. That is what intel says you have to use for that CPU. It is all crap. Their motherboards are junk.

Can't wait to replace mine!!
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My System
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post #5 of 8
You know, I have not really been impressed with my 9500. It's sad, but true. I bought it mostly out of looks, but with the idea that it would cool good as well.

It is a great cooler for stock, or mild overclocks, but it seems to be suffering under extreme overclocks like on my 920.

At 3.96Ghz with 1.312 Vcore, my load temps are about 60-65 depending on ambient temps. My ambient is usually around 22-23c, at night the ambient drops to 19-20c and temps retard to about 58-59c. the thermal specs on my chip state 63 is the max, so I consider anything over 60 as unacceptable.

If I drop the voltage to 1.3 and run at 3.5Ghz my full load temps drop to 58c at about 22c ambient. Safer, but still not what I would expect out of a $60 cooler.

Oh, and all those temps are with my side panel completely removed. I can;t even run the system with the side panel on.

I am no noob to AS5, and after last night's 3 new applications of it, I have now re-applied my heatsink over 12 times in the last few months....no changes. It is on there tight and correctly.

If I wasn't building a water system, I would sell the 9500 and buy a Big Typhoon, swap out the plain fan for a quad LED and be happy with a comprimise in looks and function.

I have examined the 9500 closer as I was re-applying everything, and I think part of the problem is that fan design. It just swirls air around and slightly through the fins, but there is nothing to force the air along the path, no shroud or casing like a standard fan. Maybe in a case with a wind tunnel set up, high CFM fans in the front to FORCE air into the case at high speed and high speed exhaust to get it out it would work better....
post #6 of 8
Quote:
Originally Posted by Thumper
I am no noob to AS5, and after last night's 3 new applications of it, I have now re-applied my heatsink over 12 times in the last few months....no changes. It is on there tight and correctly.
I've heard that it takes about 200 hours for AS5 to fully cure. Maybe you are being too impatient waiting for results.
post #7 of 8
You are correct, for AS5 to reach it's maximum heat transference takes 200 hours of high heat operation (with several breaks for it to cool completely to room tempeture in between those hours).

However, I was not looking for the 3-7 degree drop from using AS5 over standard thermal paste, what I was trying to diagnois was an improperly seated heatsink and/or to much/to little AS5. Those results you should see immediatly. Besides, I'm not complaining about AS5, I'm complaining about the 9500LED heatsink/fan. It's a good fan, but it can't handle extreme overclocks. It's keeping my 920 at 58c or lower right now, but it's only running at 3.5. It was running at 3.96 for 2 months at 60c or lower, but now it can't. I have no doubt that a Big Typhoon would get me over 4Ghz on air.

Also, prior to my recent attempts, the last application of AS5 had fully cured (I fold 24/7 so 200 hours with some cooling time is about 2 weeks).



I thought about it some last night, and I think it is possible that my AS5 has gone bad, when I removed the first coat (the one that had over 200 hours) it had some clear liquid parts. It didn't hit me until just now, and I remembered to squeeze out a small amount on a napkin before applying to clear any extra suspension fluid from the tube).

Oh well, I start on my WC tubing this weekend, I should have my custom water system up and running in a few weeks...
post #8 of 8
i also have a p830 3.0ghz @3.25 and am using artic silver ceramique paste and a artic cooling freezer7 pro and idle temps are 74F or 24C 108F or 42C under full load with room temp at 72F also have a xion 2 mid tower case with 2 50cfm fans also as far as i know the freezer 7 pro is designes to cool all the latest lga prossers
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