zwouth wrote:You might try 150mhz (50x3)
For the fastest PCI bus, boot the VIP at 133 MHz and then switch the jumper to overclock to 160 MHz. I do this routinely to avoid problems with my Sound Blaster on the ISA bus. But then I discovered the computer ran faster in this configuration. The way I figure it the VIP's AMI WinBios must set up shop based on the boot speed. It seems the PCI speed is 20 MHz after a 160 boot and 33 MHz when booted in the 133 mode.
HOT switching to 160 MHz must keep the dividers disabled and you end up with a actual 40 MHz PCI bus speed. Connect a switch (the unused keyboard lock works for me) to the "A" jumper on the CPU clock selector JP7 block. Switch on=133 off=160. My hard drive really perks up when I do this: take a look at the dismal 160/160 boot/operation rates.
NOTE: if you have the 3.x version of the motherboard you will notice that the CPU clock jumpers are labeled differently: JP3 instead of Version 1.x's JP7.
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