OC an ATI X600 XT (256) on 98SE \ VOGONS

OC an ATI X600 XT (256) on 98SE

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First post, by YeHs

Posted on 2025-07-15, 21:47

YeHs Offline

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Hi folks, I'm new to the retro PC space and recently built myself a Pentium 4 build for win98, using an X600 XT. It runs everything into the early mid XP era admirably, but I want to see if I can squeeze just a bit more out of this GPU for those very last games that can run on 98, maybe an a modest OC of an extra 25-50 mhz?

I'm using the beta Catalyst 6.2 driver for 9x from PhilsComputerLab, but Rivatuner doesn't seem to detect the driver, I presume cause it's unofficial?, and of course ATI Tool doesn't run on 98.

Is there any alternatives for OCing on 98SE?
How would I go about doing this?

Reply 1 of 5, by tehsiggi

Posted on 2025-07-16, 03:57

tehsiggi Offline

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If you know your card handles the clocks, why don't you try them on XP, then adjust the vbios and flash it?

That way you don't need any software in 98 at all

AGP Card Real Power Consumption
AGP Power monitor - diagnostic hardware tool
Graphics card repair collection

Reply 2 of 5, by agent_x007

Posted on 2025-07-17, 06:54

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Try PowerStrip.

Reply 3 of 5, by shevalier

Posted on 2025-07-17, 07:18

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YeHs wrote on 2025-07-15, 21:47:
and of course ATI Tool doesn't run on 98.

https://en.wikipedia.org/wiki/ATI_Tray_Tools
Try some non-latest version, maybe it will run.
Sorry, I wasn't paying attention.

And Ray Adams himself wrote on forums in those years that there were problems with Windows 98 and he would not provide support.

Then yes, download the BIOS, modify, reflash
https://www.techpowerup.com/download/rabit-bios-editor/

Aopen MX3S, PIII-S Tualatin 1133, Radeon 9800Pro@XT BIOS, Audigy 4 SB0610
JetWay K8T8AS, Athlon DH-E6 3000+, Radeon HD2600Pro AGP, Audigy 2 Value SB0400
Gigabyte Ga-k8n51gmf, Turion64 ML-30@2.2GHz , Radeon X800GTO PL16, Diamond monster sound MX300

Reply 4 of 5, by AlexZ

Posted on 2025-07-18, 10:13

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A modest OC usually doesnt help much. Take your p4 as 1st system and it's time to have another one for full windows xp coverage in 1920x1080. Late socket 775 or am2+ with pcie work here.

Pentium III 900E,ECS P6BXT-A+,384MB,GeForce FX 5600, Voodoo 2,Yamaha SM718
Athlon 64 3400+,Gigabyte GA-K8NE,2GB,GeForce GTX 275,Audigy 2 ZS
Phenom II X4 955,Gigabyte GA-MA770-UD3,8GB,GeForce GTX 780
Vishera FX-8370,Asus 990FX,32GB,GeForce GTX 980 Ti

Reply 5 of 5, by The Serpent Rider

Posted on 2025-07-18, 12:11

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Overclocking memory on X600XT gives a nice performance boost.

I must be some kind of standard: the anonymous gangbanger of the 21st century.

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