I've never used a 9800 Pro with a P III, but it's from the same generation as the 9600 XT. It should work as well on your board. A Radeon 8500 would be period correct for your build, but I seriously doubt your CPU would bottleneck a 9800 Pro all that much.

Well, I heard about using GT6800 on 440BX. 😀
If you have an unused Radeon 9800 or want to build a "maximum PC", then why not.

But there is one unpleasant problem - 70 watts of peak power consumption
https://tehsiggi.github.io/agp-power-monitor/

If the video card on the board from 9800XT has a turbine, and also with temperature monitoring, then you just need to look at the temperature.
If on PCB from 9700 with a needle radiator.
Or put it on the shelf and admire it.
Or change the cooling system, but then the stock look of the card is lost.

fosterwj03 wrote on 2025-08-22, 00:28:

I've never used a 9800 Pro with a P III, but it's from the same generation as the 9600 XT. It should work as well on your board. A Radeon 8500 would be period correct for your build, but I seriously doubt your CPU would bottleneck a 9800 Pro all that much.

Thats good to know. I guess its better match overall then overpowered over the top bottlenecked 6600 GT, but still i love how early XP games looks on it, i just wish it did not have terrible 98 support.

shevalier wrote on 2025-08-22, 04:42:

Well, I heard about using GT6800 on 440BX. :-) If you have an unused Radeon 9800 or want to build a "maximum PC", then why not. […]
Show full quote

Well, I heard about using GT6800 on 440BX. 😀
If you have an unused Radeon 9800 or want to build a "maximum PC", then why not.

But there is one unpleasant problem - 70 watts of peak power consumption
https://tehsiggi.github.io/agp-power-monitor/

If the video card on the board from 9800XT has a turbine, and also with temperature monitoring, then you just need to look at the temperature.
If on PCB from 9700 with a needle radiator.
Or put it on the shelf and admire it.
Or change the cooling system, but then the stock look of the card is lost.

Hey, thanks for all info provided. I have nothing against changing stock look of the card if it gonna work more stable, reliable and heat less. Zalman big massive passive vga cooler is on its way, so i maybe install it on 9800 Pro, and add somehow extra silent cooler so i can be sure it will run smooth.
If 98 support is solid and early XP games could run solid then its what i was looking for all this time.

Studiostriver wrote on 2025-08-22, 20:08:

shevalier wrote on 2025-08-22, 04:42:

Well, I heard about using GT6800 on 440BX. :-) If you have an unused Radeon 9800 or want to build a "maximum PC", then why not. […]
Show full quote

Well, I heard about using GT6800 on 440BX. 😀
If you have an unused Radeon 9800 or want to build a "maximum PC", then why not.

But there is one unpleasant problem - 70 watts of peak power consumption
https://tehsiggi.github.io/agp-power-monitor/

If the video card on the board from 9800XT has a turbine, and also with temperature monitoring, then you just need to look at the temperature.
If on PCB from 9700 with a needle radiator.
Or put it on the shelf and admire it.
Or change the cooling system, but then the stock look of the card is lost.

Hey, thanks for all info provided. I have nothing against changing stock look of the card if it gonna work more stable, reliable and heat less. Zalman big massive passive vga cooler is on its way, so i maybe install it on 9800 Pro, and add somehow extra silent cooler so i can be sure it will run smooth.
If 98 support is solid and early XP games could run solid then its what i was looking for all this time.

For the sake of the cards, make sure there is proper airflow and cooling. Heat puts a lot of stress on them, especially the memory is prone to fail. I've repaired too many of them already 😁

tehsiggi wrote on 2025-08-23, 04:41:

For the sake of the cards, make sure there is proper airflow amd cooling. Heat puts a lot of stress on them, especially the memory is prone to fail. I've repaired too many of them already 😁

Let's be honest, none of this cools the 9800 properly.
Apparently, ATI considered the temperature of 105 degrees not to be the maximum, but close to the operating temperature.
https://theretroweb.com/expansioncards/s/ati- … 0-pro-reference
except HIS 9800Pro IceQ

PS. I have a GV-RX60P256DP, which is X600 (actually 9600 on the PCI-e bus).
It has pads for a LM63 thermal sensor, which is what I used.
And the distance between the holes for the cooler is 55 mm, exactly like the 9800 Pro.
The cooler from the first card on Retroweb on the X600 maintains a temperature of 45 degrees. With the consumption of the X600, it is 2.5 times less.

I have the 9800 IceQ as well. And while you might think: "Hey, that's a good cooler!" you have to be cautious. The normal stock coolers are just bad, no doubt about that. However the Arctic Cooling Silencer (which is what HIS has used) basically eliminates any airflow from the GPU FAN to the voltage regulators or memory. They usually have passive coolers packaged with the AC silencer and have to heavily rely on the systems airflow.
I would even argue that for memory and voltage regulators, there is no benefit in using the AC Silencer. Yes, the itself GPU is cooler, but the rest is kept cooking with perhaps less air moving over them than before.

Imho Zalman coolers are overall "better" in a sense that the whole card gets more airflow over it. They'll not remove the GPU heat out of the system, but I think that's easily solvable with a proper FAN at the rear of the computer. Especially today with proper cases and fans.

tehsiggi wrote on 2025-08-23, 06:31:

However the Arctic Cooling Silencer (which is what HIS has used) basically eliminates any airflow from the GPU FAN to the voltage regulators or memory.

In the channel heatsink, this is easily corrected by small holes opposite the necessary points.
Yes, this somewhat reduces the static pressure of the air flow. But much later they came to exactly such solutions.
Or contact through the thermal pad with heatsink.

Imho Zalman coolers are overall "better" in a sense that the whole card gets more airflow over it.

I myself prefer coolers in the form of a daisy flower.
But still not a set of plates like Zalman.
For consumption of 50-70 watts, all manufacturers have settled on solid aluminum.
But due to the extremely atypical and unfortunate placement of the holes in the Radeon 9-series, it is difficult to find a replacement.
However, a turbine with a channel radiator, like the 9800XT, looks preferable.
Starting with multiple mounting points that make the graphics card more solid.
Every time I connect the MOLEX to my PRO and hear the PCB crackle slightly, I feel like it's the last time.

tehsiggi wrote on 2025-08-23, 04:41:

Studiostriver wrote on 2025-08-22, 20:08:

shevalier wrote on 2025-08-22, 04:42:

Well, I heard about using GT6800 on 440BX. :-) If you have an unused Radeon 9800 or want to build a "maximum PC", then why not. […]
Show full quote

Well, I heard about using GT6800 on 440BX. 😀
If you have an unused Radeon 9800 or want to build a "maximum PC", then why not.

But there is one unpleasant problem - 70 watts of peak power consumption
https://tehsiggi.github.io/agp-power-monitor/

If the video card on the board from 9800XT has a turbine, and also with temperature monitoring, then you just need to look at the temperature.
If on PCB from 9700 with a needle radiator.
Or put it on the shelf and admire it.
Or change the cooling system, but then the stock look of the card is lost.

Hey, thanks for all info provided. I have nothing against changing stock look of the card if it gonna work more stable, reliable and heat less. Zalman big massive passive vga cooler is on its way, so i maybe install it on 9800 Pro, and add somehow extra silent cooler so i can be sure it will run smooth.
If 98 support is solid and early XP games could run solid then its what i was looking for all this time.

For the sake of the cards, make sure there is proper airflow and cooling. Heat puts a lot of stress on them, especially the memory is prone to fail. I've repaired too many of them already 😁

I usually keep computer case open all the time when i play games, and close it afterwards. I think that big bulky Zalman ZM80C-HP Noiseless VGA Heatpipe Cooler with additional cooler on top of him would be enough to keep it cool and functioning. I`ll order additionaly some passive coolers with adhesive thermal pads for chips from ali express after some time to give it maximum treat as i possibly can. 😀

shevalier wrote on 2025-08-23, 09:03:

In the channel heatsink, this is easily corrected by small holes opposite the necessary points.
Yes, this somewhat reduces the static pressure of the air flow. But much later they came to exactly such solutions.
Or contact through the thermal pad with heatsink.

I have no time today to get down to the basement and take a look again, but my memory tells me that there are no holes in the whole construction of the silencer that would divert air to the rest of the card.

I checked this review on TPU and these pictures tell the same story:
https://www.techpowerup.com/review/arctic-coo … silencer-rev-3/

So out of the box: If you use this cooler, it cools the GPU and that's it.

Studiostriver wrote on 2025-08-23, 11:15:

I usually keep computer case open all the time when i play games, and close it afterwards. I think that big bulky Zalman ZM80C-HP Noiseless VGA Heatpipe Cooler with additional cooler on top of him would be enough to keep it cool and functioning. I`ll order additionaly some passive coolers with adhesive thermal pads for chips from ali express after some time to give it maximum treat as i possibly can. 😀

If somehow applicable, try to get some air onto it from the side. Like Zalman proposed: https://techgage.com/article/vf900-cu_vs_fata … 0c-hp_round-up/ - this helps the rest of the card tremendously.

tehsiggi wrote on 2025-08-23, 11:32:

I have no time today to get down to the basement and take a look again, but my memory tells me that there are no holes in the wh […]
Show full quote

shevalier wrote on 2025-08-23, 09:03:

In the channel heatsink, this is easily corrected by small holes opposite the necessary points.
Yes, this somewhat reduces the static pressure of the air flow. But much later they came to exactly such solutions.
Or contact through the thermal pad with heatsink.

I have no time today to get down to the basement and take a look again, but my memory tells me that there are no holes in the whole construction of the silencer that would divert air to the rest of the card.

I checked this review on TPU and these pictures tell the same story:
https://www.techpowerup.com/review/arctic-coo … silencer-rev-3/

So out of the box: If you use this cooler, it cools the GPU and that's it.

Of course, there are no such holes in the Silencer itself.
People started to think about this later and the necessary cutouts began to appear on other video cards.

https://www.techpowerup.com/review/his-hd-467 … eq-turbo/4.html
Then the fashion for such coolers simply ended.

shevalier wrote on 2025-08-23, 11:39:

Of course, there are no such holes in the Silencer itself. People started to think about this later and the necessary cutouts be […]
Show full quote

tehsiggi wrote on 2025-08-23, 11:32:

I have no time today to get down to the basement and take a look again, but my memory tells me that there are no holes in the wh […]
Show full quote

shevalier wrote on 2025-08-23, 09:03:

In the channel heatsink, this is easily corrected by small holes opposite the necessary points.
Yes, this somewhat reduces the static pressure of the air flow. But much later they came to exactly such solutions.
Or contact through the thermal pad with heatsink.

I have no time today to get down to the basement and take a look again, but my memory tells me that there are no holes in the whole construction of the silencer that would divert air to the rest of the card.

I checked this review on TPU and these pictures tell the same story:
https://www.techpowerup.com/review/arctic-coo … silencer-rev-3/

So out of the box: If you use this cooler, it cools the GPU and that's it.

Of course, there are no such holes in the Silencer itself.
People started to think about this later and the necessary cutouts began to appear on other video cards.
Then the fashion for such coolers simply ended.

Your post sounded like that it's the case. So it was rather a proposal instead.
I agree, that would have improved that cooler a lot. Just like you mentioned, the era of aftermarket air cooling died not too long after those cards.

tehsiggi wrote on 2025-08-23, 11:32:

If somehow applicable, try to get some air onto it from the side. Like Zalman proposed: https://techgage.com/article/vf900-cu_vs_fata … 0c-hp_round-up/ - this helps the rest of the card tremendously.

I have one intel cpu cooler which i unmounted that can be easily put in that position (i use it to cool down currently passive 6600 GT and it works pretty good). Its hard finding actual original Zalman cooler or anything that is meant to cool down passive gpus, especially old as these. Luckily this is working solution for know. I never found any mounting coolers for gpus to buy anywhere, i wish there is some sort of mounting system for modern, bigger coolers, cause i could easily get for example todays modern big be quet 12 inch cooler and it would work better and be much quiter solution.