Presence of a 387 divides speedsys score.
Real performance is not changed, don't worry.

edit : But changing a 33MHz CPU to a 40MHz one is not enough, 386MB set speed with some crystal I think ?
Not really my domain, I'm a 486 guy.

I suspect Suniac is right about the performance.

If you have a 66MHz crystal, you could drop an 80MHz one in and you would see a 40MHz CPU clock... It might overclock the ISA or something a little though.

You could be adventurous and try to go faster if you wanted ;D

ok thanks for the speedsys info - so the score gets divided by 2?

@crystal: crap - so i'd have to swap out the crystal to get 40mhz? i don't want to overclock anything, though...

I can't speak for speedsys. But the crystal will be fairly trivial. At worst, your board will be dividing by 8 for the ISA clock, so you will get 5MHz instead of 4MHz, which is well within tolerance. I have ran ISA cards at over 20MHz without issue.

HighTreason wrote:

I can't speak for speedsys. But the crystal will be fairly trivial. At worst, your board will be dividing by 8 for the ISA clock, so you will get 5MHz instead of 4MHz, which is well within tolerance. I have ran ISA cards at over 20MHz without issue.

Uhh... isn't ISA 8 MHz and not 4?

Anyway, 10 MHz will work just fine with most ISA cards

Eh? Yeah, oops. I forgot that the divisor refers to the crystal and not the CPU clock.

I think most ISA cards were probably made to run fine at 12MHz to be honest, given some boards seemingly yield this frequency no matter what.

My Shuttle 386 board has never had a problem with the divisor set to 8 (10MHz) anyway - though having speed jumpers, there are also ones to slow the ISA BUS to 8MHz.