"Corrupted Graphics" on BX Master...HELP

[UJ09]

When I pushed my Cel566 to 952(112x8.5), I'll encounter "corrupted graphics" while I playing some 3D games. But on my Abit BH6, no problem encountered if I using the same CPU speed, what's wrong?

 

[bacillus]

have you set your agp frequency selector to 2/3? there may be a jumper on the board to do this if it's not done automatically.
if you haven't then your videocard will be on 1/1 with an AGP bus speed of 112MHz!

 

[UJ09]

That's exactly what I'm thinkng now, but unfortunately I can't find any AGP frequency divider on the board, neither the manual too. Anyone?

 

[Killrose]

That feature is usually found as a setting in bios.

 

[UJ09]

No, it didn't have this feature inside the bios, and I can't find any jumper that's relative with the AGP speed adjustment. Anyone?

 

[baldy]

if everything else is the same, ram, hd, everything, except for the motherboards, you have your answer already

i have seen the same with many boards and the same cpu, my present 1.2 would run only 1420 stable on my IWILL ka266, but 1520 on this Epox 8k7a+, just as one current example. amd or intel, both exhibit the same types of behavior with different motherboards and all else equal.

baldy

 

[UJ09]

Maybe that's the motherboard problem, but is there any way that I can adjust the AGP speed(2/3) instead? I don't think BX Master didn't have any option to modify the AGP speed, even my old BH6 had the AGP speed adjust option. Any BX Master or ex-BX Master owner can provide some help here?