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Accelero S1 Rev2 + MSI R5770 VRM cooling?

Last response: in Graphics & Displays
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January 4, 2012 12:32:35 AM

I have installed an Arctic Cooling Acelero S1 Rev2 on my MSI R5770 Hawk and am loving the drop in temperature and noise, but a question came up half way through the install when I found the VRM heat sinks are... less than ideal for this card.

1. Am I correct, that these are the VRM's (outlined in green)?


1B. If so, I have the tools / stupidity necessary to cut the VRM coolers down to what would fit, my idea is expressed in this picture (red = cut). The base of the heat sinks is the width of my supposed VRM's.


2. After all that checks out- the real issue to me- can I use my modified heat sinks bridging two VRM at a time (noted in cyan)? Or would this be an electrical issue? Would I have to make little squares for each of the VRM?

Of course, if the answer to '1' is 'no', then I'll have to ask- where are they? This is one of the forum pages that led me to install the S1, I have yet to see anyone attempt/mention VRM cooling.

Feel free to ask additional questions, thank you for your patience,
Drew J
a b U Graphics card
January 4, 2012 2:29:33 AM

I have one of those coolers on my 6790; I just made it so that the heat sinks cover the majority of the ICs on the PCB.

If there were no heat sinks there before then don't worry about it.
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January 4, 2012 1:27:54 PM

Okay, so did you cover multiple IC at once with the heat sinks? That would answer pretty much all of my questions quite directly.

There weren't any heat sinks there before, I guess it's just a game to me- to attempt cooling my card as best as possible.

Thanks.
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a c 173 U Graphics card
January 4, 2012 1:59:39 PM

If you want a simple and very easy solution then just get some solid copper vram coolers on newegg for like $10-15 for a pack of 8. Beyond that if you want to be cheap then go for it plus it will improve your skill for later mods.
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a b U Graphics card
January 4, 2012 11:08:17 PM

Drew J said:
Okay, so did you cover multiple IC at once with the heat sinks? That would answer pretty much all of my questions quite directly.

There weren't any heat sinks there before, I guess it's just a game to me- to attempt cooling my card as best as possible.

Thanks.



Yes I did; there were several ICs which were close enough together to use a single heat sink on (ie 2 ICs to 1 heat sink)
My GPU went from idling at 50*C and gaming at 80*C to idle at 30-35*C depending on ambient, and less than 50*C on average when gaming with a hefty OC.
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January 4, 2012 11:15:28 PM

Best answer selected by Drew J.
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January 4, 2012 11:16:26 PM

Thank you for your input, bobusboy and nforce4max. Looks like I'll proceed with my plan then. Should be fun.
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a b U Graphics card
January 4, 2012 11:19:44 PM

Make sure to use an eraser and rub it on the ICs before trying to attach the heat sinks!

I did this (as per the instructions) and had zero issues making them stick permanently; there are lots of people lamenting about how they couldn't get the heat sinks to stick properly and it turned out they skipped that step.

I used one of those soft white erasers, just gently rub it back and forth. I did it for about 10-15 seconds per IC. You don't need to grind it in to the chip.
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January 4, 2012 11:27:03 PM

Thanks!

I've had a positive experience with their heat sinks, contrary to the common complaints you've mentioned. With the RAM sinks I rubbed them, air blasted them, and cleaned them with 91% isopropyl alcohol prior to placing the heat sinks with pressure (30 sec). Will do the same with my modded ones. :) 
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