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Old June 23, 2010, 07:00 AM
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Default Too little Rad?

So the title is misleading.

I have an i7 980x @ 4.15Ghz (EK Supreme HF) + EVGA GTX 480sc. I previously didn't have the 480 watercooled, and bought a block for it weeks ago from Daz (EK Acetal Nickel), just never found time to install it.

I was worried about not having enough Rad. I also got a spanking new TFC triple rad (removed the swiftech triple, for some other project) and everywhere I read, most people say 2x120 for each unit is base. Reading other 980x owners posting on forums, people posted and backlashed them for only planning one 3x120 rad.

So i'm all worried about overheating, and the loop being too hot (etc) and pull the hard drive bays out of my ATCS 840 - preparing to mount another 2x120.. (which, doesn't fit btw) but I end up hooking the the loop up anyways. I have three cheap Coolermaster 69cfm fans on the rad. Exausting the air (lol)

So after running F@H on all 12 cores + the video card.. 49c max on CPU, 54c max on GPU. Prime95 max 52c on CPU (with GPU F@H running) I have the stock 220mm fan (or whatever the size, 240?..) in the front, a Noctua P12 on the bottom, and Noctua P12 out the back.. with the 3x CM fans exausting out the top - with the case closed. The room is air conditioned, which probably helps, and is around 18-22c at all times.

Those temperatures are more than acceptable in my eyes.. the GPU was capping out before at 86-89c after hours of BC2 gaming.

Moral of the story? I dunno, give it a whirl and test it out for yourself. I still might add a dual 2x120 since I made the space - not sure on that part yet.. would be nice to drop to 40c range + OC the snot out of the 480sc.
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Old June 23, 2010, 07:16 AM
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If you have a TFC tripple rad with good fan on it it will be enough. I would make sure to make the CPU first on the loop so the GPU wont heat it up. If you are still not sure then buy a little swiftech triple rad for cheap on NCIX at like 50 box and put it external at the rear of the case.
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Old June 23, 2010, 07:21 AM
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Yeah, in most cases a tripple rad will be enough.

One thing I'd suggest though to verify your CPU load temps is to try Prime on it's own without the GPU FAH client running. Since you're cooling a hot GPU it might not make a difference, but in most cases, prime stability/temp testing should be done with just the prime app running.... it might seem counter-intuitive, but my experience has been that "loading" Prime95 with extra apps will often lower the actual load on the CPU.
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Old June 23, 2010, 03:56 PM
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Yeah, there's been a big rash of radiator over-speccing for the last year or two. Good to hear things are working out before you reached that stage.
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Old June 23, 2010, 04:21 PM
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Those temps look good to me. I have a triple rad as well, that right now only cools a 920@4.0. I have six fans on it, and will be adding a GTX470 to the loop (but in a warm room).

Thanks for posting as I was wondering a little bit about the cooling.
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Old June 23, 2010, 04:27 PM
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And, now that i'm not at work all ripped up on coffee and trying to find something to do... I got the temps backwards - the cpu cores are max 55c, and GPU max 49c.

My 480 is first in loop.. pump > gtx480 > 980x > rad > res > pump. As with most installations, it just made sense to route the tubes this way.
Ran Prime95 and GPU F@H, temps went up about 4c on both.
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Old June 23, 2010, 04:46 PM
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Nothing wrong with those for max temps at all. If you want to try and drop a few more degrees without going to a second rad, you can always go push pull with the fans, get better flowing fans, and/or add shrouds.

Check this article out from MLL Radiator Fan Orientation and TFC Shroud Testing & Review
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Old June 23, 2010, 05:34 PM
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that 980x will even do good on air
@ 4.3 maxed out @ low 60s on water i was hitiin mid 40s @ 4.4
mcp 320 + thermochill 120.3 on the a/c
i know that cpu personally
it never saw 65c just keep her under 70c
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Old June 24, 2010, 03:16 AM
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Quote:
Originally Posted by dustin1706 View Post
Nothing wrong with those for max temps at all. If you want to try and drop a few more degrees without going to a second rad, you can always go push pull with the fans, get better flowing fans, and/or add shrouds.

Check this article out from MLL Radiator Fan Orientation and TFC Shroud Testing & Review
Yeah, I would have a push/pull on the rad - however there isn't enough room to mount it to the top of an ATCS840 with fans on both sides.

As for the overclock, the chip does rock - I'm keeping it under 4.2Ghz cause it's going 24/7 for folding, I don't want it on the top of it's performance and have to raise the voltage too much. To go past 4.2 requires a lot more voltage to keep stable.
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Old June 24, 2010, 06:51 AM
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Quote:
Originally Posted by MpG View Post
Yeah, there's been a big rash of radiator over-speccing for the last year or two. Good to hear things are working out before you reached that stage.
that was my thinking too people going rad crazy for no reason ( i7 most be why too much heat)
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