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GPU Full Cover Blocks - Why? - Page 2

post #11 of 20
Quote:
Originally Posted by Rowey View Post

Because look how good they look

+1 biggrin.gif
post #12 of 20
Quote:
Originally Posted by Mike-IRL View Post

My MCW60s were less than €50 for both

That's a pretty damn good price.
Quote:
Originally Posted by Mike-IRL View Post

I didn't buy a heatsink for my VRMs but I used some small aluminium ones I had lying around that I stuck on with thermal tape I paid a couple of euros for. The universal blocks don't need additional VRM cooling if you've got decent airflow over your card anyway and I didn't use any on my reference card as it already had a decent sink for VRM and VRAM cooling.....if you use decent thermal tape they won't fall off. I use sekisui 5760 and none of mine have ever fallen off.

Yes if you have decent airflow, but if you're water cooling for performance/silence (possibly both) overclocking can make the memory run a bit hot depending on what you're doing and too much heat to those is bad news bears. When it comes to my comment about them falling off, it's just that it is a possibility, they're held on by thermal tape, why chance a possible short? (Not saying to get a full cover block, but something that fully covers them like a heat sync I mentioned from Swiftech that has zero chance of falling off)

Other than that, I am not saying full cover blocks are better, as others have said I think it is pretty much an aesthetic choice (for individual syncs, just my personal gripe with them) as they tend to look cleaner and allow for cleaner tubing most of the time. (I would imagine getting some angled fittings would clean up the tubing really well)

As others have stated, it does depend on what you're using it on, if you're getting top tier or second from, then why not kick the extra $60ish dollars towards a full cover block? Assuming you will upgrade when you need to (average 3-5 years). But if you're getting something mid to low end I don't really think it is worth the money for a full cover.
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post #13 of 20
Quote:
Originally Posted by Klinkey View Post

Yeah I'm wondering this too... Why get a full cover block, is vrm cooling that important?

Yes... very.

VRMs can limit OCs on higher-end cards.

The GTX590 VRMs had a nasty habit of burning out.


Full-coverage blocks are nice because they are single-slot. Virtually all universal GPU blocks are 2 slots.
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post #14 of 20
Easier tube routing, far better looks (in my opinion).
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post #15 of 20
VRM cooling is very important, my 7970's VRM's got VERY hot indeed, around 80 Deg C I recall!

Data in my topic here:
post #16 of 20
I guess whether or not VRM cooling is that important depends largely on the card... I used a Koolance GPU-220 universal block on a 5770, and never had a VRM problem. When I upgraded to a GTX-560 on the same block, though, the VRMs would actually overheat and kick the PC off...

I ended up making a custom VRM heatsink:

LL


Without overclocking, it will actually heat that WHOLE sink over 70C and kick off again after an hour or so. I ended up putting a small fan on it.


Makes me wish I had a universal block so I wouldn't have to deal with it. :-/
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post #17 of 20
Does anyone know if the GTX 680 has the individual VRM/RAMsink heatsink on it's reference cooler? I believe the GTX 580 did... Make's it incredibly easy.. just remove the outer layer of the heatsink and apply the universal waterblock and your good to go.

If more cards did this not many would buy full coverage blocks.
Edited by Murlocke - 3/23/12 at 10:02am
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post #18 of 20
Aesthetics mostly. VRMs need cooling however heatsinks + a bit of airflow will definitely be sufficient for most cards. The bridge edition EK universal blocks don't look too bad when you throw a serial/parallel bridge on them. I've always used fullcover blocks in tthe past since I like/required single slot cards. However w/ the GTX680 I may very well go universal since they they are two slot cards.
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post #19 of 20
Quote:
Originally Posted by Murlocke View Post

Does anyone know if the GTX 680 has the individual VRM/RAMsink heatsink on it's reference cooler? I believe the GTX 580 did... Make's it incredibly easy.. just remove the outer layer of the heatsink and apply the universal waterblock and your good to go.
If more cards did this not many would buy full coverage blocks.

I'm not sure... but I'm inclined to say it does.

Stock 580
inside2.jpg

Stock 680 (pics from this review)
cooler2.jpg
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post #20 of 20
my 2 cents on this if I'm watercooling my gpu then Im watercooling the mem and vrm very simpy the cooler the vrm the cleanier the power
it supplies when these start to get hot you start to get ripples and noise in the power that supplies that gpu which means your clock you
thought was stable no longer is because the power your suppling it isnt nice and clean like it was when those vrms were nice and cool.
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