Old Jetway Mobo + Radeon 9250 = Missmatch???

Video, SCSI, modem, CDROM/CDR/CDRW, etc.
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Aleatic
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Hi

I have a Jetway 663As Ultra motherboard with the chipset is VIA KT-133A (VT8363A/VT 82C686B).

I want to put in a videocard, Sapphire Radeon 9250 128 Mb, 128bit.

When the computer POSTs, I get a long and two short beeps = something wrong with videocard.
Nothing on the screen.

I have the newest BIOS from Jetway, Award BIOS A08 from 07/03/2002.

I have cleaed the CMOS.

I have tested with a Diamond Stealth III S540. It works and runs with AGP Data Transfer Rate 2x. (verified with SiSoftware)

I have tested with a Nvidia Riva TNT2 Model 64. It works and runs with AGP Data Transfer Rate 4x. (verified with SiSoftware)

The cardmaker said the videocard would work with the motherboard.

I have searched all over internet for a clue of why it doesn't work, but haven't found anything specific.

Have you guys any gueses or wild ideas of what can be wrong or what I can do or test?

regards

Aleatic
Denniss
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Either the card is damaged or it's a connection problem.
Aleatic
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Thanks again for a quick answer.

The card works in an other computer.

Aleatic
Rainbow
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Many KT133(A)-based boards have problems with some graphics cards. I've tried Radeon 9200 in various boards:
Biostar M7VKB - didn't work
Abit KT7-RAID - worked sometimes
ECS K7VZA - worked always
Patched and tested BIOSes are at http://wims.rainbow-software.org
UniFlash - Flash anything anywhere
Aleatic
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Have you any idea why they worked/didn't work?

regards

Aleatic
Denniss
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Chipset problem with AGP4x and/or Fast Writes - most often with older Revisons of KT-133 chipset
Aleatic
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What kind of problems has there been vith that chipset?

I get it to work with two other older AGP-cards. They might run on 3.3v though.

If it's problem with the power, how can I test that?
Jetway said in an mail:

"the board can support 1.5v
the 8x vga card is 1.3v , so not support"

regards

Aleatic
Denniss
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BS from Jetway - all AGP8x cards are backwards compatible at least to AGP4x using 1.5V signal level (AGP8x uses 0,8V so again BS from Jetway).
Aleatic
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Hi

Thanks for your tips and support.

I have tried different things and finaly got it to work!!!!

I'ts the the powersupply, probably combined with other things.
I have also disconnected a DVD-reader.

The times a get the BIOS to accept the card is when the computer has rested for more then 15 minutes.
If I try to reboot, it won't accept the graphiccard. This is regardless if I take out the harddisks, CD-reader, floppy, keyboard, mouse and networccard or not.

"Cold-boot" = OK
"Warm-boot" = not OK

Any of you have a clue whay this happens?

regards

Aleatic

p.s. At the moment I cant get the computer to work, probably it's tired of working hard. It's been going for two days without any rest ;-)
Ritchie
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Although it is good that you have got it to work, it sounds like you have only got it to work intermittently. So there is probably still some kind of compatibility issue or conflict related to the use of that card.

If it were me, I would rather eject the card and use one that works every time. Sounds like the card itself is OK so there is no reason you cannot use it in another machine.
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