I am still Not able to Higher the Resolution above 1280x1024. 1600x1200 ist possible but does Not fit screensize and have to scroll. After reinstalling i am able to Set full hd ans Higher but trying that will prompt with No Signal. Settings Show me the evailability. Using Powerstrip let me Set full hd but after aome second Screen goes black and no Signal.

On another machine of Mine with x800 XL No Problems at alles even over füll HD with 85hz.

@rotzgurke

Swap the X800 XL and X850 XT between those machines and check if you see the same behavior on the other machine.

Duffman wrote on 2025-09-27, 00:22:

@rotzgurke

Swap the X800 XL and X850 XT between those machines and check if you see the same behavior on the other machine.

I wanted to avoid this but maybe better and i give it a try and reply than.

Okay same in another machine. Sad

rotzgurke wrote on 2025-09-29, 12:15:

Okay same in another machine. Sad

Try recapping the card if you can.

Duffman wrote on 2025-09-29, 13:31:

rotzgurke wrote on 2025-09-29, 12:15:

Okay same in another machine. Sad

Try recapping the card if you can.

What do you mean?

The capacitors are old and might not be doing their job anymore, de-solder them and replace them with new ones.

Duffman wrote on 2025-09-29, 16:38:

The capacitors are old and might not be doing their job anymore, de-solder them and replace them with new ones.

Ah okay. Na, that would be no go for me. Idea great for the ones who can do that.

rotzgurke wrote on 2025-09-29, 20:48:

Duffman wrote on 2025-09-29, 16:38:

The capacitors are old and might not be doing their job anymore, de-solder them and replace them with new ones.

Ah okay. Na, that would be no go for me. Idea great for the ones who can do that.

Win98 likes to adjust the vertical refresh rate to around 100Hz for some cards.
Boot the system, select 640x480/8 bit -->reboot, then FHD/32bit/70Hz. Your monitor can handle 70Hz.

DarthSun wrote on 2025-09-29, 21:33:

rotzgurke wrote on 2025-09-29, 20:48:

Duffman wrote on 2025-09-29, 16:38:

The capacitors are old and might not be doing their job anymore, de-solder them and replace them with new ones.

Ah okay. Na, that would be no go for me. Idea great for the ones who can do that.

Win98 likes to adjust the vertical refresh rate to around 100Hz for some cards.
Boot the system, select 640x480/8 bit -->reboot, then FHD/32bit/70Hz. Your monitor can handle 70Hz.

I will try tomorrow

Once again I am not an expert but sometimes Win 98 se has messy graphics if you do not install the directx (whatever version you prefer) before the GPU. I faced a similar issue with some of the GPUs I tried on Win 98se systems and it seems you need to get directx installed followed by the driver. Reversing the order messes up things. Also it might be a good idea to do a fresh OS installation if you have switched hardware around.

Also judging from your initial post, you have a 775 board with 2GB RAM. Have you tried downsizing the RAM to 512 MB and checking if the GPU works as intended. Also if you intend to keep the RAM as it is you can also try RLOEW patches.

Hans Tork wrote on 2025-10-04, 23:54:

Once again I am not an expert but sometimes Win 98 se has messy graphics if you do not install the directx (whatever version you prefer) before the GPU. I faced a similar issue with some of the GPUs I tried on Win 98se systems and it seems you need to get directx installed followed by the driver. Reversing the order messes up things. Also it might be a good idea to do a fresh OS installation if you have switched hardware around.

Also judging from your initial post, you have a 775 board with 2GB RAM. Have you tried downsizing the RAM to 512 MB and checking if the GPU works as intended. Also if you intend to keep the RAM as it is you can also try RLOEW patches.

I also say that you need to install DirectX first.
And the Loew RAM driver is definitely above 512MB.

So i tried what you have Said. Nothing works finally. Even my gf 4 ti will only Go Up to 1600x1200 75hz.

A new Installation i do Not want to. May you have other ideas. I am confused

Maybe just quotes, if that helps...
Excerpts:
Retro machine: https://logout.hu/tema/amd_k6-iii/hsz_69831-69831.html
Modern: https://logout.hu/tema/amd_k6-iii/hsz_121260-121260.html
Addon: https://logout.hu/tema/amd_k6-iii/hsz_74744-74744.html