9 May
2010
9 May
'10
9:52 p.m.
On Sunday 09 May 2010, Tony Duell wrote:
Pull the cap off of the processor, and poke around until you find it.
It's a multiple (usually fixed by the CPU, but which can be altered on
some processor variants) of the CPU front-side bus speed (or hyper-
transport/memory speed on "newer" AMD chips).
Pat
--
Purdue University Research Computing --- http://www.rcac.purdue.edu/
The Computer Refuge --- http://computer-refuge.org
Actually,
almost all modern x86 systems have a 14.31818MHz master
clock. It's usually first multiplied up by a PLL chip (e.g.
PI6C104), then further multiplied by an on-chip PLL in the CPU.
So all x86 systems since the PII are 14.31818MHz systems?
OK, so if I buy a 2GHz PC, what signal is that 2GHz describing? And
how does it relate to signals I can measure?