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Disappointed with Thermalright 120 ultra extreme

post #1 of 12
Thread Starter 
I've been waiting to get my hands on one of these for months, finally installed one tonight and I got absolutely no improvement in idle or load temps on my E6600 o/c to 3.3375Ghz.

Previously had a zalman 9700NT and idle was 33-35C and 100% load was 42-45C using AS5. And 8x 120mm fans in my stacker. Now with the thermalright lapped, AS5, and 7 fans (one side fan had to be removed to close the side panel) - idle is 35C and peak is 45-47C at the same overclock.

Hope things improve after a few thermal cycles...but I think maybe the zalman did a better job...it was quieter too.
post #2 of 12
With AS5... if so give it about 3-4 days with the PC on 24/7
    
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post #3 of 12
It may be the case if both coolers are flat, your cpu itself isn't, which could be the source of the temperatures you're unhappy with. If you don't mind voiding the warranty, go ahead and lap the E6600 and watch the temps drop (hopefully).
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post #4 of 12
What are your ambients?

Remember the 9700 is considered an amzing/great cooler.

I honestly do not know why you would upgrade and expect a big difference
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post #5 of 12
The 120 Extreme has a concave base, most owners lap it and stick a 120mm silverstone fan on the cooler. Also, how the frig are you using 2x HR-03 Plus on your SLI'd Ultras? It's NOT possible due to space between the PCI-E slots as far as i'm aware...
 
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post #6 of 12
im no genius, and have not had any experience with this fan, but perhaps part of this situation is that before you had a fan mounted directly above your cooler? and now that you have removed it just isn't cooling as well as you would have hoped. But then again you do have an enormous amount of fans.........
    
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post #7 of 12
Hey don't feel so bad. I'm exactly in the same position!
I was using a Zalman 9700NT and my Idle temp was roughly 40~41 degrees and load is around ~68 degrees. The Thermalright Ultra 120 Extreme is indeed having a "convex" base which some said it's built this way so it will have a key in the lock fit with some of the "concave" IHS. Although this statement is logically right but nothing beats 2 perfect flat surface. My IHS was lapped and my Thermalright Ultra120 Extream base is quite CONVEX and you can take my words and the cap very literally. When I apply small pressure with one finger on one side of the heatsink placed on a piece of glass, it tilted to one side...and this is very bad.

However, I'm still getting a little improvment in the temp but nothing too great as we hoped for. Idle is around 36~37c degrees and load is around 65~66 degrees so only marginal improvment. The temp dropped about 3-4c in avg. It's not too bad but it's not great either. In addition, the ambient temp actually got much higher than it was becouse it's summer time and I still get a marginal temp drop from the ultra120 extream so I think it's doing its job right but the base needs to be lapped..

I'm using Arctic cooling MX-1 instead of AS5 and several experiment gave me the result that MX-1 favours lower temp. The key is not to overuse the amount. You do not need to spread the paste. Apply the thermal paste as instructed from the Arctic Silver official site for C2D or C2Q depends on your application.

I'm expecting the temp to drop a few more degrees when I have time to lap the heatsink then I should get more favorable result - 6-7c overal

But I sense by that time, the IFX-14 will be out and with possible fix to the current known issue with the Ultra120 Extream base.
    
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post #8 of 12
Thread Starter 
Quote:
Originally Posted by Mhill2029 View Post
The 120 Extreme has a concave base, most owners lap it and stick a 120mm silverstone fan on the cooler. Also, how the frig are you using 2x HR-03 Plus on your SLI'd Ultras? It's NOT possible due to space between the PCI-E slots as far as i'm aware...
Onlt 1x HR-03 plus on one of the gtx ultra cards using the above mount. I am unable to squeeze another one in - they made about a 15C drop on gpu temp, even without a 92mm fan mounted.

I just cant see how all these review showed the thermalright ultra as being great, when it is no better, and less versitile than a simple 9700NT
post #9 of 12
Quote:
Originally Posted by Mhill2029 View Post
Also, how the frig are you using 2x HR-03 Plus on your SLI'd Ultras? It's NOT possible due to space between the PCI-E slots as far as i'm aware...
I think that you could fit 2 of the HR-03s in SLI if you use this config for the top one. Please let me know if I am mistaken.
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post #10 of 12
I'll trade you my tuniq tower for your thermalright 120 ultra extreme
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