[REQUEST] ECS P6S5AT (SiS 635T) BIOS Modification

Hello! I have this ECS P6S5AT motherboard. It is one of the fastest single socket 370 boards but it has very poor BIOS. I need someone to add the following options:

CPU:
- enable overclocking in BIOS:
= 138/138
= 100/150
= 150/150
= 166/166
= 200/200???


RAM:
- set the tRAS to 5

AGP:
- unlock some AGP features.

But the main request is to make this motherboard work properly with TUALATINS at 166 FSB.
The thing is that it works correctly with COPPERMINES only at 166MHz, with tualatins it is very unstable (cache problem?)

Please help!
 
I attach the latest official BIOS.

  020830.rar (Size: 184.55 KB / Downloads: 0)