18 Nov
1999
18 Nov
'99
2:46 a.m.
an (non multiplieable) basic 486DX CPU, the only way
is to raise bus
speed - and 66 MHz is way out of Spec for all 486es I know - regulary
only the AMD Parts are speced for 40 or the old Intel DX50 (was quite
It was abuse but it works.
True. But for the 6502 even more the CPU itself was
often the hardest
part to tweak. Geting fast Memorys wasn't that problem - the CPU itself
starts to malfunction, possibly the propagation times within the CPU
where already stressed.
That is the true limiting speed of most CPUs. The RCA CDP1802 cmos part
is an excellent example of this. At certain voltages and high speeds
the part will not work due to the internal propagation delays.
Allison