My Ati 9700 pro AIW cooling mod

They make noise, too.

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My Ati 9700 pro AIW cooling mod

Post by niels007 » Fri Nov 25, 2005 5:16 am

Not able to stand the noise of the stock cooling I tried to put a fairly big cheap (€10) socket 754 heatsink (92x92mm) on the card. I had to mill two bits out of the heatsink to make it fit, and a drill broke which is now permanently a part of the heatsink. Luckily I just had enough room for a second set of holes..








As you can see I sandwiched a temperature sensor between the backplate and the back of the pcb. The maximum temp with stock cooling was 63c. Now, with a 120mm Nexus at ~660 RPM 'sort of' blowing over the heatsink (non ducted / very inefficient) the maximum temperature is 43! This translated in additional overclocking from 350 to 395 (325 stock). I don't have to explain that a 660rpm Nexus is a lot better to listen to than a 5000rpm 40mm screamer. :)

The backplate is essential and makes for a tight fit without any sort of bending of the pcb.

Big succes!

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Post by Sparkytfl » Fri Nov 25, 2005 11:56 am

pictures are broken.
Have you tried a Vice Grip pliers to get that bit out? Unless it's in there with nothing to grab. Can't see what it looks like yet.

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Post by niels007 » Sat Nov 26, 2005 1:28 am

Its burried in the hole.. No need to get it out anyway as everything is in place and working well. I see the pics fine here btw.. not sure what is going on there.

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Re: My Ati 9700 pro AIW cooling mod

Post by jmc777 » Wed Nov 30, 2005 5:00 pm

niels007 wrote:Not able to stand the noise of the stock cooling I tried to put a fairly big cheap (€10) socket 754 heatsink (92x92mm) on the card.

Nice one! That heatsink looks like a big ol' beast! :o I got sick and tired of the fan on my 9800se AIW and modded the card so that I could fit a VF700-Cu on it. I had no idea just how noisy those little stock fans could be! :shock:

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Post by shogo33 » Tue Dec 13, 2005 4:12 am

Yep...i second that one... replaced my stock cooler for my 9800 Pro with the VU700 and running it at 5v is truely unbelievable noise reduction...

However i must say that at 12v the VU700 fan does become louder but no where as loud as the stock 9800pro cooler..

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Post by BillyBuerger » Tue Dec 13, 2005 4:38 am

I did a similar thing with a Socket 8 HS: BFG FX5200 Passive Socket 8 HS. But I don't have a working temperature probe around to check my temps.

Looks nice!

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Post by pangit » Tue Dec 13, 2005 3:38 pm

I did a similar thing with my old 9000Pro AIW, using an old stock socket A heatsink. Not as neat as yours (no access to a milling machine so I used my trusty Dremel) but does the job nicely.



Since these photos I've actually replaced my card with a 9800se AIW, which has a virtually identical layout so the heatsink was an almost direct swap (just a bit more dremelling required). Of course it runs hotter (especially as I've unlocked the other 4 pipelines!) so I've put a Panaflo in the PCI slots with a duct running from the heatsink. Kind of like a home made Arctic Silencer!

[url=]Pangit's PC silencing project "on the (not so) cheap"[/url]

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Post by Doomer » Wed Dec 14, 2005 12:27 am

I also did mod for the 9700. I cut the wires of the stock cooler, and put a Panaflo L1A next to it, which is mounted to a PCI-slot fan holder. It's running at 7 volts and has been working for the last two and half years.

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