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TRUE Temps/Fan questions

post #1 of 10
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I upgraded my Zalman 9700NT to the TRUE 120 (unlapped) and although the difference in temps have been great, I find my temps a little high for my currently OC. My Q6600 G0 @ 3.6, 1.4v is hitting 71c under prime95 (38-40 idle). I have Load Line Calibration enabled so there's no vdroop under load. Case airflow is very good, so I know that's not the problem.

At 3.0ghz @ 1.28v, my temps fall right inline with some other TRUE users. About 34c idle and 50c load. Does the increase in voltage from 1.28v - 1.4v warrant such a high temp delta from idle - load? At 1.28v the delta was about 15c, with 1.4v is about 30c. Abients are about 22-23c.

Right now I have a Scythe Slipstream H, 1600rpm 88.1 CFM mounted on it. Funny thing is, regardless of the RPM I set, my temps only change within ~1c.
I’ve been reading about “static pressure†and wondering if I would benefit from changing my fan to an Ultra Kaze or even an S-Flex-F. I see some people here are getting my temps @ 1.5v.

Thanks!
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post #2 of 10
GO's vary in temps and required vcore.

With the 3 Q6600's I used with a TRUE, max temps were never above 55C with 3.6 (irrespective of vcore used).

I would suggest you lap the TRUE. Its easy and can drop temps as much as 5-10C (although less is typical).

the TRUE is notoriously concave.

As an example, with a lapped TRUE and one of my Q6600 that required 1.48125 vcore in the bios (nvidia board without loadline calibration), my orthos load temps never exceeded 52C with a silverstone fan at minimum RPM (max sounds like a jet engine)
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post #3 of 10
Thread Starter 
Quote:
Originally Posted by Robilar View Post
GO's vary in temps and required vcore.

With the 3 Q6600's I used with a TRUE, max temps were never above 55C with 3.6 (irrespective of vcore used).

I would suggest you lap the TRUE. Its easy and can drop temps as much as 5-10C (although less is typical).

the TRUE is notoriously concave.

As an example, with a lapped TRUE and one of my Q6600 that required 1.48125 vcore in the bios (nvidia board without loadline calibration), my orthos load temps never exceeded 52C with a silverstone fan at minimum RPM (max sounds like a jet engine)
With out load line calibration, I found the vdroop about 0.04 under load, so I'm guessing that my 1.4v would be 1.44v without. My VID is 1.225.

Those are amazing temps for 3.6 and 1.48v. Are you using Coretemp or Realtemp? My goal is to stay around 65c underload. If it has to be 71c, I'm not too worried since it'll never reach that temp under normal conditions. Just like to be able to achieve similar temps as others.

I was thinking about lapping, but found my temps @ 3.0ghz simliar to those who have lapped their TRUE so I just left it. The base of my TRUE wasn't that bad. Really don't want to lap for 4 hours and only lose 2c, 10c would be great. Guess I won't know until I try
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post #4 of 10
You can spend 1 hour on lapping if you want, just enough to get it nice and falt. You don't have to spend the extra hour(s) getting a perfect shine. I stopped at 600 grit and, along with a lapped Q6600@3.6, was greeted with a nice 47 or so load.

TO prevent those high load temps I suggest a quick lap along with an Ultra-Kaze 2000. Getting more air through the fins allows the heat to get blown away faster, thus keeping load temps under control. After lapping with a UK-2000, I would expect about a 10C drop.
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post #5 of 10
Thread Starter 
Quote:
Originally Posted by Adrienspawn View Post
You can spend 1 hour on lapping if you want, just enough to get it nice and falt. You don't have to spend the extra hour(s) getting a perfect shine. I stopped at 600 grit and, along with a lapped Q6600@3.6, was greeted with a nice 47 or so load.

TO prevent those high load temps I suggest a quick lap along with an Ultra-Kaze 2000. Getting more air through the fins allows the heat to get blown away faster, thus keeping load temps under control. After lapping with a UK-2000, I would expect about a 10C drop.
If it can give me 10c that'd be perfect. I'll give it a go when I get the chance. How loud is the Ultra-Kaze? The Slipstream I have on right now actually pushes more (rated) air than the UK 2000. It definitely pushes a lot more air than my S-Flex F.
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post #6 of 10
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Would lapping also even out temps? Underload there's a difference between the cores of about 8c. Cores 0,1 - 71c, cores 2,3 - ~63c. Leads me to believe maybe this darn thing really isn't that flat afterall. But I also heard it's quite normal for quads to have big temp differences between cores.
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post #7 of 10
I had an 8-12C difference before lapping both, after lap I have a 3C difference

Also the UK-2000, while having less rated cfm output, has MUCH higher static pressure, thus will push a lot more air in a heatsink-environment. It's not too loud, and in any case the noise is deeper and more soothing, like Obama.
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post #8 of 10
Thread Starter 
Quote:
Originally Posted by Adrienspawn View Post
I had an 8-12C difference before lapping both, after lap I have a 3C difference

Also the UK-2000, while having less rated cfm output, has MUCH higher static pressure, thus will push a lot more air in a heatsink-environment. It's not too loud, and in any case the noise is deeper and more soothing, like Obama.
So I ended up slapping a Ultra Kaze 2000 on the TRUE. That thing is loud at full rpm. I have a pretty quiet case though. I found anything over 1500rpm was too loud for regular use. Using the always accurate "hand test" I could definitely feel more pressure with the kaze than the slipstream. Both pushed a ton of air, but the kaze had a lot more force when there was resistance.

At full speed, the UK dropped my load temps about 4c. Idle was pretty much the same, maybe 1c cooler. Running it at around 1500rpm gave me about the exact same temps as the slipstream.

The thing with the slipstream is that it would give me the same temps at all rpms. I guess due to the lack of pressure, the same amount of air was making it through the fins, even though the fan was spinning faster. The kaze you defintely notice the difference with fan speed. I guess there's something to static pressure afterall. A little disappointed that there wasn't much performance increase when running the kaze at low though. Thought the added pressure would make up for the lost cfm.
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post #9 of 10
Quote:
Originally Posted by sunburn39 View Post
So I ended up slapping a Ultra Kaze 2000 on the TRUE. That thing is loud at full rpm. I have a pretty quiet case though. I found anything over 1500rpm was too loud for regular use. Using the always accurate "hand test" I could definitely feel more pressure with the kaze than the slipstream. Both pushed a ton of air, but the kaze had a lot more force when there was resistance.

At full speed, the UK dropped my load temps about 4c. Idle was pretty much the same, maybe 1c cooler. Running it at around 1500rpm gave me about the exact same temps as the slipstream.

The thing with the slipstream is that it would give me the same temps at all rpms. I guess due to the lack of pressure, the same amount of air was making it through the fins, even though the fan was spinning faster. The kaze you defintely notice the difference with fan speed. I guess there's something to static pressure afterall. A little disappointed that there wasn't much performance increase when running the kaze at low though. Thought the added pressure would make up for the lost cfm.

Remember though that the 4C decrease is upgradeing from an already pretty good fan, so I'm actually impressed by that. hurry up and lap!
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post #10 of 10
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Quote:
Originally Posted by Adrienspawn View Post
Remember though that the 4C decrease is upgradeing from an already pretty good fan, so I'm actually impressed by that. hurry up and lap!
lol I did, remember my other post? A total drop of about 11c on 2 of my cores. Cool and steady @ 3.6 with all the mods
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