Radeon and VIA chipset probs....

GT578

Senior member
Feb 7, 2000
721
0
0
I have a DFI AK75-EC(KT133A) and a RadeonLE 32MB..........
Under WinXP .....when I install the VIA drivers and then the radeon drivers I can't get AGP4x.....no matter what I do.
At the VIA website it said something about how ATI drivers disable AGP or something if it detects a VIA chipset due to the fact that older ATI cards don't support AGP4x in XP.
Is there a registry setting or something I can do to change that??? I get this feeling that I'm not running the card at its full potential if its not running in AGP mode.......

Under Sandra it says its running AGP 66mhz.....which is agp 1x.???

 

ProviaFan

Lifer
Mar 17, 2001
14,993
1
0
Originally posted by: GT578
I have a DFI AK75-EC(KT133A) and a RadeonLE 32MB..........
Under WinXP .....when I install the VIA drivers and then the radeon drivers I can't get AGP4x.....no matter what I do.
At the VIA website it said something about how ATI drivers disable AGP or something if it detects a VIA chipset due to the fact that older ATI cards don't support AGP4x in XP.
Is there a registry setting or something I can do to change that??? I get this feeling that I'm not running the card at its full potential if its not running in AGP mode.......

Under Sandra it says its running AGP 66mhz.....which is agp 1x.???
the AGP port runs at 66mhz all the time, regardless of whether it's 2X or 4X. Anyway, you should check in your BIOS for an option that limits the AGP speed. It is probably under the menu called something like "chipset features." Make sure that's set to 4X.
 

Peter

Elite Member
Oct 15, 1999
9,640
1
0
... and also make sure you said "Turbo Mode - Yes" while installing the AGP part of VIA's 4-in-1 drivers. Else no 4x mode either.

regards, Peter
 

BFG10K

Lifer
Aug 14, 2000
22,709
3,002
126
Yeah, turbo mode is quite possible the reason - or rather, a lack of it.

Also make sure you have the latest BIOS and 4-in-1s for your system (4.40a now, IIRC).