27 Oct
2001
27 Oct
'01
5:11 p.m.
----- Original Message -----
From: <jpero(a)sympatico.ca>
To: <classiccmp(a)classiccmp.org>
Sent: Saturday, October 27, 2001 6:52 PM
Subject: Re: VLB SCSI?
<snip>
Well, there is an IEEE standard that applies to ISA, and guess what it uses as
the "standard" clock ... use something else, and you're on your own.
> The ISA Ram will run at the ISA rate, which is
not terribly fast, but it's
> normally as fast as the CPU requires. Unfortunately, the ISA clock is a
> STANDARD, at 8 MHz, so, even in cases where the CPU runs at 10 or 12 MHz,
(I've
got one that
runs at 24), the ISA is still limited by that 8 MHz clock.
Not usually, junky clones had odd ISA clocks and some were too high.
Dick
Wizard