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post #2771 of 4103
Quote:
Originally Posted by MadHacker View Post
Idle
Attachment 220012
Load after a minute
Attachment 220013
Load after 10 minutes
Attachment 220014

Watercooled using koolance waterblock.
on same loop as CPU , MB & Ram block
I opened up 2 VID-AR699s and noticed the imprints were less visible as the rest of the Vregs on the same row (circled in red A). The other block also showing the same at the same exact location.

I used the included grey 0.5mm thermal pad and was thinking to add another layer to make it to 1mm, but don't know if it will cause other issues to the rest. So I just filed off the stand off nearest to that area (circled in red B) maybe by 0.5mm not sure, replaced with new 0.5mm grey thermal pad, screwed everything back on, at this point I was hoping to flex the board to the amount filed off to have enough space for the screw to travel thus giving more pressure on that area. Opened it up again to check the imprints, it has improved but still not as significantly as the rest on that row.

I did the same to the other block. If you are willing to go thru all the troubles to check maybe you will spot something and hopefully it will be in the same area as circled in red. Your Vreg2 and the temp sensor could be located in that area too.

So curious had to open it up to check and this is the only explanation that makes sense to me. It is just a waterblock not some high tech secret weapons



Edited by Ken1649 - 7/26/11 at 2:02am
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post #2772 of 4103
Quote:
Originally Posted by Ken1649 View Post
I opened up 2 VID-AR699s and noticed the imprints were less visible as the rest of the Vregs on the same row (circled in red A). The other block also showing the same at the same exact location.

I used the included grey 0.5mm thermal pad and was thinking to add another layer to make it to 1mm, but don't know if it will cause other issues to the rest. So I just filed off the stand off nearest to that area (circled in red B) maybe by 0.5mm not sure, replaced with new 0.5mm grey thermal pad, screwed everything back on, at this point I was hoping to flex the board to the amount filed off to have enough space for the screw to travel thus giving more pressure on that area. Opened it up again to check the imprints, it has improved but still not as significantly as the rest on that row.

I did the same to the other block. If you are willing to go thru all the troubles to check maybe you will spot something and hopefully it will be in the same area as circled in red. Your Vreg2 and the temp sensor could be located in that area too.

So curious had to open it up to check and this is the only explanation that makes sense to me. It is just a waterblock not some high tech secret weapons

Just switch to 1.0mm thermal pad instead of .5mm. The thermal pad will compress, so it won't affect the other areas.
     
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post #2773 of 4103
Quote:
Originally Posted by ezveedub View Post
Just switch to 1.0mm thermal pad instead of .5mm. The thermal pad will compress, so it won't affect the other areas.
Yeah, could have done that but the GPUs contacts already perfect and I don't run Bit Coin for it to matter that much
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post #2774 of 4103
So i decided to take the koolance block apart gpu vregs had no impressions using .5mm on one side so i decided to take put a new layer i screwed it all together then disassembled to check for impressions for some reason that center section dosnt sit flush and dosnt make contact with the vregs on that side so i decided to use the 1.0m thermal pad . here are my results this is after 20 mins or so the vregs would not hit more than 67C on furmark but on GUI miner still hits 83C +. the vregs are now even in temp but still dont cool well before vreg1 was 55 max using 0.5m (the side that made contact) the other was 15 deg off .


Gpu1 idle:33c
Gpu2 idle :34c
Gpu1 idle:vreg 35C
Gpu2 isle:vreg 33C
Edited by tokoam - 7/17/11 at 11:49am
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post #2775 of 4103
Keep checking, you'll get it sorted out
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post #2776 of 4103
Okay so heres the deal guys it appears there are quite a few people that have the top vreg rail on the koolance block misaligned i tryed the supplied pink 1mm thermal pad and that helped but had poor heat transer dont use it ! so what i did was double stack the 0.5mm EK thermal pads i had luckily i had extras if you have EK 1mm pads i would use those it seems the EK pads are thinner and harder and transfer way better my temps before this were in the 90+ on vreg look at the pics below you can see it isnt aligned i even took it apart and reseated and verfied all screws no imprint on left side of thermal pads on gpu here are my pics showing u they arent even and this is hard stress with GUI Miner about 1 hr in .try this out guys in the mid 60s now Koolance needs to fix there this is @ 940/1400





Edited by tokoam - 7/17/11 at 5:06pm
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post #2777 of 4103
Quote:
Originally Posted by tokoam View Post
Okay so heres the deal guys it appears there are quite a few people that have the top vreg rail on the koolance block misaligned i tryed the supplied pink 1mm thermal pad and that helped but had poor heat transer dont use it ! so what i did was double stack the 0.5mm EK thermal pads i had luckily i had extras if you have EK 1mm pads i would use those it seems the EK pads are thinner and harder and transfer way better my temps before this were in the 90+ on vreg look at the pics below you can see it isnt aligned i even took it apart and reseated and verfied all screws no imprint on left side of thermal pads on gpu here are my pics showing u they arent even and this is hard stress with GUI Miner about 1 hr in .try this out guys in the mid 60s now Koolance needs to fix there this is @ 940/1400
Good job man, maybe make the GPU-Z pic a little bigger so the temps are clearly visible. Usually Koolance is spot on but they dropped the ball on this one. So just to summarize use 2 layers of the gray pad because pink thermal interface=crap.
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post #2778 of 4103
Quote:
Originally Posted by catcherintherye View Post
Good job man, maybe make the GPU-Z pic a little bigger so the temps are clearly visible. Usually Koolance is spot on but they dropped the ball on this one. So just to summarize use 2 layers of the gray pad because pink thermal interface=crap.
you got it the pink one that they provided is like gum. and very stretchy i updated the pic for you .
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Likwid Dutch
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post #2779 of 4103
Quote:
Originally Posted by tokoam View Post
Okay so heres the deal guys it appears there are quite a few people that have the top vreg rail on the koolance block misaligned i tryed the supplied pink 1mm thermal pad and that helped but had poor heat transer dont use it ! so what i did was double stack the 0.5mm EK thermal pads i had luckily i had extras if you have EK 1mm pads i would use those it seems the EK pads are thinner and harder and transfer way better my temps before this were in the 90+ on vreg look at the pics below you can see it isnt aligned i even took it apart and reseated and verfied all screws no imprint on left side of thermal pads on gpu here are my pics showing u they arent even and this is hard stress with GUI Miner about 1 hr in .try this out guys in the mid 60s now Koolance needs to fix there this is @ 940/1400



You can still lower it down, I lowered this stand off a bit (circled in blue) and now it is perfect flush. Never thought anyone would go as thoroughly as what you just did. Good job well done

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Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
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post #2780 of 4103
Quote:
Originally Posted by Ken1649 View Post
You can still lower it down, I lowered this stand off a bit (circled in blue) and now it is perfect flush. Never thought anyone would go as thoroughly as what you just did. Good job well done


you said you can lower it by ? grinding away the stand off ?
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Likwid Dutch
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