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Mobo for Rage Fury Maxx

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First post, by joc

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Hi, this is my 1st post.
My English is not good, so sorry about.

Got my Ati card at the flea market. Works! 😀
Rest of rig:
Win98SE + some patch
Mobile Barton @ 2Ghz
Chaintech 7AIA5 E100C
512Mb SDRam
SLI Voodoo2
Badass Guillemot ISIS sound card.
mATX case

Machine works ok but i have no LAN nor USB2.
686B SB have bad reputation. 8235 will do the much better job for my voodoo (V-link).
I need newer mobo with 3.3V AGP voltage and AGP x1 speed in BIOS.
Some VIA KM266/8235 (Biostar M7VIQ) mobo should be ok but I want to play a little bit with my unlocked Barton, so my future mobo must have dividers for 166Mhz FSB.

KT333CF supports 166 but, as I can read, it does not work with 3.3V cards, + there is no mATX KT333 mobos.
Tried to ground A2 pin on Maxx to make it 1.5V. Tested it on my mobo.
It works but freeze shortly after I start 3Dmark99, so I have to roll it back to 3.3V

Question:
If I buy some KT333CF/8235 mobo (ECS K7VTA3) I need to do some AGP voltmod.
How far can I go with AGP voltage without frying KT333 to make my Maxx stable.
Hope I don't have to go much above 2V...

Edit:
Soyo SY-KT333 DRAGON Plus looks similar to K7VTA3.
http://www.motherboard.cz/mb/soyo/SY-KT333DRAGONPlus.htm
Chipset Description
VIA KT333CF / 8235 chipset
Supports 266/333 MHz FSB
Graphics Info
AGP slot supporting 4X AGP
Adjustable voltage from 1.5v to 1.8

So...I will fry that chip with 2 or more volts?

Last edited by joc on 2016-01-21, 17:15. Edited 1 time in total.

Reply 1 of 2, by kanecvr

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I don't understand what you are trying to do here. Almost all KT333 boards have universal AGP, meaning they support both 3.3 and 1.5v signalling. The Chaintech 7AIA5 is no exception, meaning the rage fury maxx should run fine on it. I've had problems with Rage cards before (rage 128) - the exact symptoms you're describing. Are you sure it's the mainboard?

Reply 2 of 2, by joc

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7AIA5 is now in my machine but lacks in LAN and USB2 so I want to replace it with newer mobo with LAN, USB2 and native 166FSB support.

One option is to buy KM266/8235 mATX mobo and keep my case, but KM266 don't have 166FSB.

Second option is to buy KT333CF (KT400 w/o 8xAGP) board which supports 166FSB and DDR400 but it can't work with 3.3V cards so I have to do some voltmods.
Maxx works at 3.3V but with simple mod I can set it to 1.5V (unstable with my 7AIA5).

If I buy KT333CF board and my Maxx begins to freeze at 1.5V I have to rise AGP voltage.
How high can I go with AGP voltage?

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