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Why can't I find a decent 7970? - Page 3

post #21 of 26
Quote:
Originally Posted by Cyclops View Post

Alright, I guess I'm going with a reference card, but there's a problem.

I'm looking at Alpha Cool blocks such as these two:

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=36088

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=34519

They are both for a reference design PCB but their layout is different from one another, hence the V2 marking for the newer block.

Did AMD change the reference board?

The first cool the vrms passive. The second have active vrm cooling but i am not 100% sure
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post #22 of 26
Quote:
Originally Posted by Cyclops View Post

Alright, I guess I'm going with a reference card, but there's a problem.

I'm looking at Alpha Cool blocks such as these two:

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=36088

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=34519

They are both for a reference design PCB but their layout is different from one another, hence the V2 marking for the newer block.

Did AMD change the reference board?

yes almost all boards are now the Rev 2, the revision 1 boards are now pretty rare and they are red not black so you should get get the Rev 2 waterblock and check the card PCB is black/brown.

If you want to know the revision 2 boards had a taller capacitor near the VRM's which interfered and shorted with rev,1 blocks
Edited by Stickeelion - 4/9/13 at 2:27pm
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post #23 of 26
Quote:
Originally Posted by raghu78 View Post

OP if you intend to watercool just pick the reference HD 7970 cards. those are beastly overclockers under water. diamond is one of the best. this ref HIS HD 7970 is available for 360 dollars.

http://www.newegg.ca/Product/Product.aspx?Item=N82E16814161399

Sold out frown.gif
post #24 of 26
Quote:
Originally Posted by tomato16 View Post

Sold out frown.gif

I just ordered this 2 days ago.. I'll have it tomorrow.

Going to use this Waterblock for my loop..
post #25 of 26
Matrix cards arent binned - i've gone thru 2 of them, my current one can hit 1270/1750 while the one i tried out would not go over 1200mhz core stably.

You have to deal with GPU Tweak if you wanna mess with voltage/both fans/LLC - which is the worst overclocking software out there

get a reference card if you can find one and put a water block if you really need to
post #26 of 26
Quote:
Originally Posted by Cyclops View Post

Alright, I guess I'm going with a reference card, but there's a problem.

I'm looking at Alpha Cool blocks such as these two:

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=36088

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=34519

They are both for a reference design PCB but their layout is different from one another, hence the V2 marking for the newer block.

Did AMD change the reference board?


1, V2 is for 7950s. 2, get better blocks.
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