overclocking older processors

From: Ben Franchuk <bfranchuk_at_jetnet.ab.ca>
Date: Mon Dec 10 02:08:31 2001

"Carlini, Antonio" wrote:

> Tweaking a MicroVAX II won't buy
> you much. I doubt you could bump the
> clock by much more than say 20% without
> something going horribly wrong. And the
> uVAX II is a fairly well balanced system:
> the memory cycle is just about right for
> the CPU (I think it works out that the CPU
> cycle time matches the memory cycle
> time - hence no need for cache).
Playing around with my 'Prehistoric' cpu, the best speed I can manage is
a memory cycle of 333 ns.( 12 Mhz/4 ). It is the I/O chips that slow me
down - not main memory. I expect much the same if you try to reto-fit
faster main memory.
Ben Franchuk --- Pre-historic Cpu's -- 
Received on Mon Dec 10 2001 - 02:08:31 GMT

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:33:38 BST