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RADEON 9800 cooling fan

I have a RADEON 9800 Pro Mac Edition 256MB in my QuickSilver 2002 mounted in the AGP slot. The 9800 cooling fan is very loud (grinding sound) after a cold startup then gets quiet after it warms up. I have looked at third party cooling fans for this RADEON and I have found the Zalman v700cu and the Arctic Cooling ATI Silencer 1, Rev. 2 that seem to be compatible. From the images of these two coolers it looks like the two mounting screws that project out the back of the garphic card are very close to the lower memory slot in my QuickSilver. I don't use the PCI slot next to the AGP slot so I know the coolers will be OK there.

My question is, has anyone actually tried one of these coolers in a QuickSilver 2002 and is there enough clearance between the mounting posts on the cooler and the memory card to prevent them from touching?

G4 933 QuickSilver 2002, Mac OS X (10.4.8), 1.5GB RAM, ATI 9800 AGP 256MB, dual LCD monitors, 1.1TB storage, USB 2/Firewire PCI

Posted on Nov 18, 2006 11:39 AM

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11 replies

Nov 18, 2006 7:01 PM in response to frankt

Hi,
Your concern is valid. ATI fans are typically the bare minimum, I have replaced all the fans on my four 9800's.

The Arctic Cooling model you suggested is an excellent insurance policy, and they are real quiet.

You will lose the PCI next to the AGP slot because the Arctic Cooler exhausts air out a vent thru that PCI slot, at the back of the Mac.

Regards,
Dave

Nov 18, 2006 7:31 PM in response to FangSuede

Hello Dave,

I already have that PCI slot empty because any card installed there is too close to the 9800 fan as it is, so that is not a problem. My other concern was that it looks like the lower mounting screw on the Arctic Cooler will be very close to the inside RAM slot. It's hard to tell from the pictures if this screw will make contact with that memory module or not. I guess I'll just have to buy one and find out.

Thanks for your advice on the Arctic Cooling ATI Silencer 1, Rev. 2. I needed to know if they are really as good as some of the reviews I've read. It's nice to know how they work in the real world. Have you had any problems with installation or with the thermal contact between the GPU and the cooler?

Frank

Nov 18, 2006 7:47 PM in response to frankt

Hi,
I just happen to be holding one in my hand right now, they are very simple to install. Just follow the directions carefully and you shouldn't have a problem.

The thermal compound is already applied to the cooler, just clean the old compound from the video card die and install the cooler. Attach two screws, plug the fan power wire into the card where the old one was and install back into the computer.

One caution, remove the old fan carefully, don't pry too much and score the PCB or tracings - be gentle. Well, two cautions, don't overtighten the two back brace screws of the cooler, snug, not tight.

Regards,
Dave

Nov 18, 2006 8:04 PM in response to FangSuede

Thanks again Dave. I was just about to place my order at svc.com (Silicon Valley Compucycle). I also saw another cooler there that looks interesting. It's the Vantec IceBerg 6 (CCB-A6C), but I think I'll stick with your recommendation and go with the Arctic Cooling ATI Silencer. I know from you that it will work for sure.

Your help is much appreciated.
Frank Taylor

Dec 6, 2006 3:52 PM in response to FangSuede

Hey Dave,
I just got a Radeon 9800 XT Pro for use with my G5 Dual with two Lacie 22 inch monitors. I'm finding that sometimes the left monitor comes up with a wrong desktop photo and the icons that normally are on the right (primary) monitor switch over to the left one. Restarting usually fixes it. Did you ever have this problem? Do I need drivers from Ati? Also, you mentioned the fans going bad. Is this a frequent complaint? Should I unload this card or buy another fan assembly and keep it handy? How do you know if the fan goes out? Mine makes no noise normally. Best,
Dave Taylor 312 943-3396

G5 Mac OS X (10.4.8)

G5 Mac OS X (10.4.8)

Dec 7, 2006 12:27 PM in response to strad549

ATI fans are notoriously bad (read that as cheap). You will know the fan is going bad when you hear a loud whine or grinding noise after a cold startup or during heavy use. The fan went bad on my 9800 Pro 256 after just 5 months. I had to send the card to ATI for repair - nearly 3 weeks to get the card back. The replacement ATI fan started making noise after another 90 days. I can't see doing this on a regular schedule for the three year warranty term so I replaced the stock fan with an Arctic Cooling ATI Silencer 1, Rev. 2. It's easy to install. So quiet that I can't hear it run and my computer case and power supply fans run slower and with less noise than ever before due to the Arctic fan venting warm air out of the computer.

The Arctic Cooling ATI Silencer 1, Rev. 2 installed perfectly with no modifications and minimal effort. It has a 6 year warranty. I consider this modification the best thing you can do to protect the $250 (or whatever you pay) investment you make with the RADEON card. It's better than waiting for the stock fan to fail and cause your 9800 to melt down. Technically installing the Arctic fan voids the ATI warranty but I believe I could reinstall the old stock fan if the card needs other warranty repairs without anyone noticing the switch was ever made.

So your answers are yes and yes although I never had the monitor problem you describe. The ATI card is a good choice - keep it then download and install the latest drivers from the ATI/AMD web site and do yourself a favor and buy an Arctic Cooling ATI Silencer model for your card. Install it when you start to hear the stock fan going bad. You will be glad you did.

PS - many thanks to FangSuede for his excellent advice given to me.

RADEON 9800 cooling fan

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