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View Full Version : Shim removal on Radeon 9800's ?



westy
02-18-04, 07:34 PM
All you 9800 Pro users out there- did you remove the shim before replacing the factory heat sink/fan with an aftermarket one ? I did a google search on this and some said you have to, others said it's more of a pain than it's worth. Just curious.........

aagiants
02-18-04, 09:16 PM
I was considering doing this to my 9800pro too. Is there an online tutorial to show u how to do this? I have never replaced a Vid HSF before

Cypher
02-19-04, 08:34 AM
I took the shim off of my 9800XT. I have a Maze4 on it and the shim prevented the water block from making contact with the VPU.
There is no reason to do it with the stock HS though because it's designed to fit. I used a razor and gently rocked it through the epoxy, while holding it flush. There are traces all over the VPU and if you cut one your out of a card.:( I had to do the same thing on my P4's IHS. I don't recommend it unless you A) need to, or B)Are willing to risk the chip. If you do it be sure to ground yourself. Devices as such are highly susceptible to ESD.;)

westy
02-19-04, 09:03 AM
I put on an Iceberq heatsink/fan and didn't remove the shim when I did. There was nothing in the instructions about removing it. When I talked with Antec about it they confirmed it should be removed, but some other boards said don't bother.

Cypher
02-19-04, 09:13 AM
Well if you start to notice unusual attracting than you'll have your answer. Grab this and let it run for a while:
http://www.daionet.gr.jp/~masa/rthdribl/
I'm not sure if an Iceberq will be able to provide proper cooling for your card. Worse case you could always revert back to stock in the mean time. Good luck.:D ;)

Brk
02-19-04, 12:43 PM
Originally posted by westy
I put on an Iceberq heatsink/fan and didn't remove the shim when I did. There was nothing in the instructions about removing it. When I talked with Antec about it they confirmed it should be removed, but some other boards said don't bother.

The stock fan is better than the Vantec Iceberq.

westy
02-19-04, 02:02 PM
Burke- why do you say that ?

Cypher
02-19-04, 04:01 PM
Because it ws enginered by ATI to remove heat effectively from their VPU. The Iceberq is a good generic design, but it doesn't seem as if it were built to deal with the heat a 9800 can generate.
I used them on older cards and the nforce2 NB chip.

westy
02-19-04, 04:12 PM
I know what it will take for overclocking using ATItool with the Iceberq. Someday when I have some time to kill I'll pop the stock heatsink/fan on and compare the two. (And of course post it !)

Cypher
02-19-04, 05:22 PM
Sounds good. :D ATI Tool is good but still has some coding issues. That's why it keeps getting better with every revision. Check out Radlinker my stickey above adn see if that woks any better for you.;) :cool:

westy
02-19-04, 08:14 PM
I do have radlinker (it comes with the latest Omega drivers) but I like the feature of letting the memory and core OC until it hits the correct (?) point, which ATItool does.

RoundEye
02-19-04, 11:12 PM
Look through this thread (http://forums.speedguide.net/showthread.php?s=&postid=894118#post894118), it may help some.

westy
02-21-04, 10:28 AM
I dropped the stock cooler back on the Radeon Pro just to check out some stuff. I did a test with ATI tool to see how high it could go using the Iceberq and the stock cooler. Here's what I ended up with running with no artifacts:

Iceberq:
Core: 396
Memory: 366

Stock:
Core: 401
Memory: 370

It's just a crude test, but I think I'm just going to leave the stock fan/heatsink on for now.

Any recommendations on what the best cooler is for a Radeon 9800 Pro ?

Cypher
02-21-04, 12:02 PM
I you're a diy type of guy this is the best route:

http://sid.nrgservers.net/9700mod/
The HS in question:
http://shop.store.yahoo.com/kmexpress/fan-1ulpp3.html

Third party wise this one seems to work out for allot of people:
http://www.xoxide.com/zazmvgaheco.html

Arctic Cooling VGA silencer

From what I've read the stock fan seems to work best for most people with these cards. I put a water block on my XT because I have this rig water cooled. To be honest with you this will probably be the last card that I do this with. The few extra MHz just isn't worth the hassle to me anymore.
Either way make sure you have a fan on the side panel. This will feed your card with cool fresh air. Good airflow is key, that's why I always add a blow hole on the top of my case. Heat does rise after all. ;)
In short my advice is stay stock, put some AS5 on that VPU and play with your airflow unless your having problems with heat.:D :cool: