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Applying MX-4 to Asus Direct CU II GTX 670

post #1 of 21
Thread Starter 
Hi guys,

I have just ordered some Arctic MX-4 to reapply the TIM on my Asus Direct CU II GTX 670 cards as my top card is going past 72c and it throttles a little.

What is the best way to apply TIM to this card? Has anyone replaced the TIM on these cards before and had positive results? If so, what sort of temps did you get (before / after) Is it worth while?

I have only ever replaced the TIM on my old Asus Direct CU II GTX 580 Triple Slot card and it took several attempts before i got sensible temperatures. Back then i used Diamond IC 7 but its very thick paste and i ended up getting the best results applying in a star shape and letting the heatsink spread it.

Pictures of application would be great and any advice welcomed.

Many thanks
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post #2 of 21
Quote:
Originally Posted by Darylrese View Post

Hi guys,

I have just ordered some Arctic MX-4 to reapply the TIM on my Asus Direct CU II GTX 670 cards as my top card is going past 72c and it throttles a little.

What is the best way to apply TIM to this card? Has anyone replaced the TIM on these cards before and had positive results? If so, what sort of temps did you get (before / after) Is it worth while?

I have only ever replaced the TIM on my old Asus Direct CU II GTX 580 Triple Slot card and it took several attempts before i got sensible temperatures. Back then i used Diamond IC 7 but its very thick paste and i ended up getting the best results applying in a star shape and letting the heatsink spread it.

Pictures of application would be great and any advice welcomed.

Many thanks

This is overclocked I presume? How much voltage are you cranking in to push it to 72°C? That's high for a GTX6xxx series thinking.gif

What are your ambient temps? Do you have decent airflow? Mine (isn't OC'd) but I get no more than ~45-55°C at load rolleyes.gif
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post #3 of 21
For My Card, I use a small dot in the middle of the GPU, and let the heatsink spread the paste to all sides of the GPU.
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post #4 of 21
Thread Starter 
Quote:
Originally Posted by Kolmain View Post

This is overclocked I presume? How much voltage are you cranking in to push it to 72°C? That's high for a GTX6xxx series thinking.gif

What are your ambient temps? Do you have decent airflow? Mine (isn't OC'd) but I get no more than ~45-55°C at load rolleyes.gif

I have them in SLI. The top card is getting warm. The voltage is set to 1.175v (maximum in afterburner)

Both cards are mildly overclocked to +60mhz core, +200mhz memory.

Bottom card sits happily at 58c under load, top card reaches and sometimes exceeds 72c. I made a mod to help improve the temps but it has been suggested a TIM replacement may help things even more.

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post #5 of 21
Quote:
Originally Posted by Darylrese View Post

I have them in SLI. The top card is getting warm. The voltage is set to 1.175v (maximum in afterburner)

Both cards are mildly overclocked to +60mhz core, +200mhz memory.

Bottom card sits happily at 58c under load, top card reaches and sometimes exceeds 72c. I made a mod to help improve the temps but it has been suggested a TIM replacement may help things even more.


Ahh, that makes sense tongue.gif

TIM replacement will help but I don't forsee it dropping it significantly frown.gif

You need a side intake of fresh cool air thinking.gif
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post #6 of 21
Thread Starter 
Tried that mate, it wasnt as good a result as i had hoped. I installed the side mesh to the case and installed a AP-15 as an intake and temps were still 70c.

TIM replacement seems the next logical step to see if there are any improvements to be had.
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post #7 of 21
Quote:
Originally Posted by Darylrese View Post

Tried that mate, it wasnt as good a result as i had hoped. I installed the side mesh to the case and installed a AP-15 as an intake and temps were still 70c.

TIM replacement seems the next logical step to see if there are any improvements to be had.

That's a dissapointment, I thought the 670's would perform better in SLI frown.gif

Short of putting them under water, not sure what else to reccomend thumbsdownsmileyanim.gif
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post #8 of 21
Thread Starter 
Well the Direct CU II does dump the heat into the case so its never going to run cool. I have to run the top card at more or less 100% fan speed under load too.

It's better with the fan mod i did at the weekend but if i can knock off a few more degrees i'd be happy!

Water seems a pain for 2 x GPU's and a CPU, it would cost a small fortune
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post #9 of 21
Like a previous post said if reapplying thermal compound doesn't yield the desired results there isn't much choice other than water. I will however let you know that the dc2 water blocks are like rocking horse *****, I got one at the moment and contemplating sli setup but ill have to go with either evga ftw or gigabyte wf in order to do so.
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post #10 of 21
My Gigabye GTX 670 windforce reaches 70 C and I have it at 1094MHz GPU/6928 Mem. Isn't that a normal temp for a GTX 600?

Try reapplying TIM. I personally only do a dot at the middle, but I have heard that the X method is better; the TIM gets spread around more.

For the CPU I use Noctua NT-H1, but it doesn't matter that much.
Edited by Atham - 3/12/13 at 3:13pm
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