Bitcoin Forum

Other => CPU/GPU Bitcoin mining hardware => Topic started by: runeks on February 03, 2012, 06:22:07 PM



Title: Which screws are needed to mount the stock heatsink on a 5970?
Post by: runeks on February 03, 2012, 06:22:07 PM
Hey all

I'm thinking of buying a used 5970 that has been used with water cooling. The thing is that the seller bought the item with the water block on. He has the original heatsink, but he has no screws for it, so I'm trying to find out which screws to buy in order to be able to attach the original heatsink to the card.

I know from this Ek manual (http://www.ekwaterblocks.com/shop/EK-IM/EK-IM-3831109835128.pdf) that there are 21 screws in total, and where they are located, but I don't know which screws to buy. So I'm looking for some details on thread measurement, width and length of the screws needed.

As far as I can see, from pictures like this one (http://www.ixbt.com/video3/images/cypress-4/hd5970-scan-back-with-cooler.jpg) and this one (http://3dvision-blog.com/wp-content/uploads/2010/07/5970-disassembled.jpg), the only really necessary screws are the 7 screws used to attach the heatsink, PCB and back plate together, and the 8 screws used to attach the heatsink to the PCB with the X-bracket on the back. The 7 screws that attach the heatsink, PCB and back plate are seemingly all of the same size, and larger than the 8 smaller screws used to attach the heatsink to the PCB with the X-brackets. But that's about what I know.

Can anyone help me out here?