VRM and VRAM heatsink airflow

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6 Jan 2018
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I’m currently gathering parts for a custom loop. I have 2 780tis in SLI and it’s not worth the cost of getting full cover blocks for them nor the AIO brackets. Even the Arctic coolers at around £35 each just don’t seem worth it on these cards. (Although it *almost* seems worthwhile given GPU prices at the moment meaning I won’t be upgrading for a long time).

I plan on having a 360mm rad in the front of the case as intake, and another in the top of the case as exhaust. That won’t be a huge amount of airflow through the case when the fans are on low and there won’t be much air travelling in between the cards even when they’re on full tilt. With the heatsinks on the VRAM chips and VRMs - would they be OK as they are or should I mount a fan across the front of the cards to move some air over them?
 
780's from memory ran rather hot in stock format never mind in sli ... i think you are going to need some air movement in there to not cause you issues sir.
 
Thanks for that. Looks like fitting a fan across the front of the cards then to get some airflow in there.

I have considered scrapping the custom loop idea (or just using it on the CPU) and picking up a couple of Arctic Accelero Xtreme IVs... as long as I could reuse them on a future GPU as it definitely wouldn’t be worth it otherwise. Then that’s VRM and RAM cooling sorted and no hassle of having a custom loop hooked up to 2 GPUs.
 
Actually found that it’s possible to fit a universal block with the stock fan and the stock plate/heatsink covering the memory chips and VRMs on this card. Seems like the best option as the chips are then cooled by the plate and the stock heatsink through which air from the fan passes. Can control fan speeds in Afterburner too.

d3bb2883_IMG_1105.jpeg
 
I know! Actually really liking the way that looks! Must clarify it is NOT my pic but one taken from the web but mine should look similar.
 
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