Gigabyte GTX 460 1GB custom sinks
I planned before purchase to sink the memory VRM and memory modules of the card, but once it was in hand it was clear that no off the self heatsink would fit.
So it was custom heatsink time!
Here's the card with the cooler removed. It really is big and literally fits every open space in the card. Stock themal pastet did great with temps, but quite thick layer, so I replaced it with Noctua NT-H1.
I had Accelero GTX 280 heatsinks left over, since I used the original backplate and custom VRM cooler. These were perfect for the project and by perfect you'll see on following images
A bit of drawing and planning later it's cut time. Using those awesome "tin snips" that cut away a strip and roll it up as seen on the left. The hole spacing is the perfect part, fits straight on the cooler mount holes, so saved a lot of trouble
Ramsink done and fits nicely
Rest of the cards sinks done and everything in place with some thermaltape. No idea on the function of the 2 mosfets, but though I'd sink 'em anyways
Planned of uing some spacers under the cooler, but the new thin thermalpaste layer made it pointless.
Then the backside voltage control chip, that I've seen thermal images from and the get hot and I doubt this card is any different. Choice of 2 blue sinks, smaller was a bit to tall and narrow, so went with oen of my all time favorite ramsinks, the Zalman blue ones that stick awesome can be used again and aren't too high.
And finally cooler back on and as you can see there isn't much room to spare even with these super low profile sinks
K, that's it, hope you enjoyed it. This sinking did help, but not sure how much MHz it brought more to memory. Hard to test GDDR5 with it's error correcting. All I know that 2050MHz on memory locked up whole system a lot sooner in Unigine Tropics bench than it did now. 10MHz more could be true, but this was done more to longevity of the card, than added OC.