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Regarding 7950 and waterblocks - Page 4

post #31 of 33
Quote:
Originally Posted by akangatta View Post

Hello all,

I realize this thread is quite old already. However, I have been posting messages in different places all over the net so that others do not get the same awful experience I have had. Watercooling a 7950 is a real hassle, since manufacturer seem to follow no logical pattern in the naming of their models.

I had purchased a XFX R7950 labelled as 795A - TNFC. But it turned out to be built on a 795A - TDJC PCB. It made it incompatible with my Alphacool NexXxos V2 waterblock. I then contacted XFX to ask if they would agree to a replacement, which, at my astonishment they did. XFX support was pretty helpful and accessible. I specifically asked for a reference PCB design (single DVI is the key). A month later I receive my replacement card, a 795A - TDFC... with two DVI ports. Not compatible once again.

That is where I would like EK_Tiboor to react. PLEASE update your cooling configurator. I have sent numerous messages telling you that listing the TDFC as compatible is false. The compatibility is one a pice to piece basis. When you buy a TDFC off any website or even retailers, you can get either a single DVI version or a double DVI version.

The double DVI versions are NEVER compatible, regardless of the reference number! No full cover blocks are designed to clear the little cluster of capacitors on the lower left corner on the face side of the card. The double DVI versions seem to all use the TDJC PCI layout.

One last word to 7950 owners looking to watercool their cards. What I have shared has been collected after spending a lot of time digging around on the net. One visual test you can conduct to make sure that your card is really a reference PCB design is to look through the gap between the heatsink and the PCB on the bottom left of the card. If you see a capacitor there, no luck, you will not be able to fit a full cover block.


Water block for some XFX custom PCB cards

http://shop.watercool.de/epages/WatercooleK.sf/en_GB/?ObjectPath=/Shops/WatercooleK/Products/15022
Edited by Jakusonfire - 6/15/13 at 2:00am
Kusanagi
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Kusanagi
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Samsung 840 Pro 256GB X2 EK Supremacy Aqua Computer Aquaero 6 Pro Aqua Computer D5 USB 
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post #32 of 33
Quote:
Originally Posted by Jakusonfire View Post

Water block for some XFX custom PCB cards

http://shop.watercool.de/epages/WatercooleK.sf/en_GB/?ObjectPath=/Shops/WatercooleK/Products/15022

I wish it were that simple.

There is that misconception that non reference 7950 PCB are based on 7970 PCB designs. Which is not true.


Regarding the heatkiller XFX version, it will fit 7970's with no problem, but will only fit those rare 7950's that were based on non reference 7970's PCB's. They usually have 6+8pin power connectors. The most recent 7950's when non reference will have their very own PCB layout, and will have two 6 pin connectors.

http://www.overclock.net/t/1390068/xfx-r7950-black-edition-dd-new-revision-k-0-is-there-any-full-cover-water-block-compatible-with-it/10
On that thread, I have posted pictures of a non reference 7950 PCB. Compare it to the ones displayed on the Heatkiller website and you will understand why nothing fits it (clue the capacitors on the bottom left are closer to the GPU on the 7950 non ref)

And before you ask: yes it is a single DVI card, but that was built on the non reference PCB. Once more, with these XFX card, it is a lottery.

In summary the Heatkiller is no good for double non ref 7950's either. And I think Watercool should update their specs online as well.
post #33 of 33
Mea culpa: The Heatkiller description is actually pretty clear on what that block will fit. They give you the reference of the PCB's that are compatible. Something EK could emulate.
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