ocmooz Posted November 1, 2008 Posted November 1, 2008 (edited) Well I wanted some memsinks to put on my GPU so I could get a bit more out of the memory, but I didn't want to pay exorbitant for some crap that would little or nothing. So I decided to design and machine my own. With the help of my Dad and some scrap copper here is what I got. So what do y'all think? They let me get 50Mhz oc so far (850 now) and its steady as a rock. B:) I put them on with Arctic Silver Alumina thermal adhesive, which is not hard at all to work with. I honestly don't know what people are talking about when they say it dries too fast. Just make a very small amount, spread it thin over the mixing surface and make sure you take the time to prep the card first, easy. Update:Had to back down to 841MHz after getting artifacts 45 mins into scanning with ATItool... bummer. Edited November 1, 2008 by ocmooz Share this post Link to post Share on other sites More sharing options...
MINDSCI Posted November 1, 2008 Posted November 1, 2008 Well I wanted some memsinks to put on my GPU so I could get a bit more out of the memory, but I didn't want to pay exorbitant for some crap that would little or nothing. So I decided to design and machine my own. With the help of my Dad and some scrap copper here is what I got. So what do y'all think? They let me get 50Mhz oc so far (850 now) and its steady as a rock. B:) I put them on with Arctic Silver Alumina thermal adhesive, which is not hard at all to work with. I honestly don't know what people are talking about when they say it dries too fast. Just make a very small amount, spread it thin over the mixing surface and make sure you take the time to prep the card first, easy. Update:Had to back down to 841MHz after getting artifacts 45 mins into scanning with ATItool... bummer. Look as good as any Enzotech heatsinks! I bet it was a lot of fun to engineer and mill those. Share this post Link to post Share on other sites More sharing options...
ocmooz Posted November 1, 2008 Posted November 1, 2008 Engineering them was fun, but my Dad did the programming and milling part (Big props for my Pops!). I just had to de-bur and install them. Share this post Link to post Share on other sites More sharing options...
suchuwato Posted November 2, 2008 Posted November 2, 2008 Nice. Some custom sinks with 'OCC' machined into them would be good... Share this post Link to post Share on other sites More sharing options...
Queenz Posted November 2, 2008 Posted November 2, 2008 Nice. Some custom sinks with 'OCC' machined into them would be good... YES! We expected better Share this post Link to post Share on other sites More sharing options...
ocmooz Posted November 2, 2008 Posted November 2, 2008 Nice. Some custom sinks with 'OCC' machined into them would be good... Doh! :facepalm: I knew I was forgetting something. How about some custom Wall papers with OCC logos instead? Oh wait we already got those.... Thanks for all the replies guys I'm glad you like them. Lets see... Update:Stayed stable for one hour of ATI tool at 841MHz now I'm looking into a vmod, because aparently the specs on these chips say 900MHz requires 2.2V and all I got right now is 2.15. <_< I'll keep everyone posted if everyone stays tuned in. Share this post Link to post Share on other sites More sharing options...
Turophiliac Posted November 2, 2008 Posted November 2, 2008 I'd like to add that those sinks look great! I've been thinking about making some in the shop when i get some free time, i'm a Mechanical Engineering Major, and the shop is free to use. just need to find some scrap materials. but i really like the ones you've cut, pretty good stuff! Share this post Link to post Share on other sites More sharing options...
Queenz Posted November 2, 2008 Posted November 2, 2008 Doh! :facepalm: I knew I was forgetting something. How about some custom Wall papers with OCC logos instead? Oh wait we already got those....Thanks for all the replies guys I'm glad you like them. Lets see... Update:Stayed stable for one hour of ATI tool at 841MHz now I'm looking into a vmod, because aparently the specs on these chips say 900MHz requires 2.2V and all I got right now is 2.15. <_< I'll keep everyone posted if everyone stays tuned in. GOOD LUCK DUDE!! Good job on the sinks :thumbs-up: Share this post Link to post Share on other sites More sharing options...
paulktreg Posted November 2, 2008 Posted November 2, 2008 Nice job! Cut the slots a little deeper and make them thinner next time if you can. The more surface area you can create the better. Cheers Paul Share this post Link to post Share on other sites More sharing options...
The Smith Posted November 2, 2008 Posted November 2, 2008 Hey they are well made! Congratz to you and your dad! However, I think it would have been simpler to buy a $5 kit like that, and it would maybe have been more performant. Share this post Link to post Share on other sites More sharing options...
paulktreg Posted November 2, 2008 Posted November 2, 2008 Hey they are well made! Congratz to you and your dad! However, I think it would have been simpler to buy a $5 kit like that, and it would maybe have been more performant. Yeah, but you can't beat making your own? Cheers Paul Share this post Link to post Share on other sites More sharing options...
hardnrg Posted November 2, 2008 Posted November 2, 2008 it looks like you only have about 2 times the surface area of a flat piece of copper, whereas if you milled the channels deeper to leave about as much material at the base as the gap is wide, you'd have more like 4-6 times the surface area I used the AS Alumina Adhesive on my first set of RAMsinks... it works very well, almost too well because you can't easily remove the RAMsinks... I now prefer AS5 with 4 drops of superglue (cyanoacrylate-based glue) at each corner, then if I need to remove them, it's a lot easier as the superglue is brittle and you can twist the RAMsinks off Share this post Link to post Share on other sites More sharing options...
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