What's is wrong with my over?

[Oia eu aqui]

Sorry my English!
I have a Asus P5S-B (S of Sis controler, with video Sis530 and sound ESS-Solo onboards) and K6-2 400 and i can't do put the bus to run at 112Mhz (only at 105/100/...).
In this frequency of 112 i have graphics problems (the images of Win98 was showed wrong) but the stability is so so.
Where is the problem? In the video onboard ("AGP2x"), in the Sis controler, in the CAS-RAS latency of RAM (set to 2-2-2 now, but i have tested 3-3-3 and the same problem)+ the 8Mb of video onboard, in the L2 cache or where?
Anybody have the solution/sugestion for this problem? Because i want run them @448 instead @450 and i can't do this.
Thanx in advance!

[lord_gumby]

I think it is your on board Sis Video.

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