4850 + Accelero S1 cooler....Impressive cooling solution

This guy did some OCing and slapped on an Accelero S1 HS. I am in utter shock at how well this thing drops the temps and at how useless the stock cooling is.

http://www.xtremesystems.org/forum [...] p?t=191944

yea the accelero's are good coolers especially for passive cooling and you can purchase the turbo module for it as well. For that matter I have found all arctic cooling products to be really good and concurrently are all I use for cpu, gpu and case fans. Its good to know they fit a 4850, does that mean it will fit the 4870? I assume they will both have similar hole spacing. I didnt buy one for my 8800GT because I wasnt sure if it would fit the next gen of cards coming out and not much point spending money on card that turned into just one to get me by.

Yeah that's one sweet heat sink, it's funny how when you read the Xtremesystems post you think, what a crap HSF, then you read that [H] post and you think, they both have crap HSFs.

Seriously makes you wonder about the stock cooling on these things and how much better they could do (or be clocked at launch) with just a little extra quality thrown into the build process.
Actually come to think of it, the crap HSF may be an attempt to keep some people from overclocking these 'lower-end' parts to keep them from competing with their more expensive siblings )

I haven't seen any HD4850 with an IceQ style cooler on them yet, but I'd personally prefer something ejecting the heat out of the rig, even though the Accelero is doing a fine job, I'd just make sure there's adequate additional cooling for the whole rig.

The heatsink on the 4870 has heat pipes...there are pics floating aorund...wonder how good it is? That is what I was thinking though...even though it cools like no other it sill goes into your case and ups your CPU temps if the flow isn't right.




Might not be half bad

yeah hopefully copper, and not hte copper paint **** i have on my hd 3870.

Expect HIS and likely someone else (like Sapphire's high end Atomic / Toxic) to offer these solutions on their later HD4850s.

Nice

It does make a slim fit in a passive setup but I would want to tag a fan on it

hahaha, yeah that will help. I just used that on my CPU. OCZ freeze. I was surprised at how thick it was. It was like trying to spread cold peanut butter on a slice of bread....or did I use cold peanut butter on my CPU?

This is how I feel about HIS ICEQ

http://www.youtube.com/watch?v=XsyHhTcJPd8

Goodnight folks!

I just don't like the hundreds of hours necessary to get it to work as it should.

lol. Yeah, I used to have it on my old x800gto. It kept it nice and cool, and was pretty quiet. I'd love to have one again.

Wonder if I can find IN DEPTH instructions on the installation. I DEFINITELY want my future GPU to be nice and cool. Since I plan on buying a CM 690 or CM 830 it will be a positively pressured case... so I might need to put the fan attachment on, wonder if that make the card too wide to Xfire? I have applied millions of CPU coolers, but never any GPU coolers.

P.S. can anyone link some guides to installing coolers on GPUs?

The 4850 has the same mount holes as the 38xx, so look for those instructions. Should be close enough. I have an S1 with fans for my 3850. I sucks to plop down extra for an aftermarket fan, but the ability to use it on a new 48xx will make it worth it. Man does it cool better than the stock 3850, and the stock 4850 is even worse!

Dang, if you look at the other images at zipzoomfly, on the box it says it's a 3870.

That sucks, I knew it was too good to be true.

The photo is of the 3870 ICQ - but the part no is the regular 4850 when you look it up on the HIS site.

Here is a post from Anand...looks like some extra work was needed.

Well, I managed to fit an Accelero S1 (Revision 1) onto one of my 4850's. The bolt holes are a perfect match. Result is a 40C drop in idle temp; beauty of it is......it's FANLESS. 78C before and 38C after in 80F ambient air. I expect to see only a 14 degree delta between idle and load, as I did with my 3870, so max temp load should be around 53-55C, again, without a fan! I need a good 3rd party tool such as RivaTuner to get a good trendable graph of load temp (not available for 4850 yet). The S1 is a great piece of cooling gear, arguably one of the most efficient air cooling devices ever made for the PC.

The mod I am going to show is for my personal satisfaction. I don't encourage anyone to try this unless they are completely comfortable with doing so. I accept no responsibilty for any mishaps that may occur. I am providing this as information only.

I did have to hack up the stock heat so the PWM area would be covered. A nice little hack saw job did the trick. Cuts through painted aluminum nicely. There are 2 bolts holding it down so plenty of pressure.

Mod 1
http://members.cox.net/kgnevada/IMG_1313.JPG

Next, I used the existing thermal pads to attach the ram sinks.

Mod 2
http://members.cox.net/kgnevada/IMG_1316.JPG

Here is a shot of the S1 Revision 1 base (perfectly aligns with holes on card).

S1 Base
http://members.cox.net/kgnevada/IMG_1317.JPG

The S1 is mounted now with a thin layer of AS5 on the gpu. The PWM area sink has plenty of clearance.

Mod 3
http://members.cox.net/kgnevada/IMG_1318.JPG

Finished mount with Crossfire bridge poking through. I did need to spread the fins to get the bridge through.

Mounted
http://members.cox.net/kgnevada/IMG_1319.JPG

Finally installed. Now i need another one to finish the job!

Installed
http://members.cox.net/kgnevada/IMG_1321.JPG

Here's an old thread of mine that shows just how good the S1 is: http://forums.anandtech.com/me...e [...] 1=accelero

Bump. Seeing the temps roll in today...although both 4850 and 4870 are not higher than the 8800GT...I wonder how well OCs will do with something like the accelero.