Messages in this thread | | | Subject | Re: OFF-TOPIC Intel CPU dies... | Date | Fri, 18 Jul 1997 00:35:11 +0200 (MET DST) | From | (Rogier Wolff) |
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Someone who was quoted wrote:
> You didn't do the experiment I suggested: > > Run a 200MHz-rated CPU at 75/100MHz, and a 75/100MHz-rated CPU at 200MHz.
I think Intel chips are speced for 50-100% of their rated speed. i.e. you're allowed to run a 200MHz CPU at 100MHz if you want too.
On the other hand, they will NOT blow up at lower speeds. Clock multiplying may become unreliable at lower speeds, but at a multiplier of 1, that too should be OK.
Next, many motherboards do a "divide clock by 32 when in powersave mode", so the motherboard manufacturers seem to think that this won't harm processors. (They most likely don't adapt the multiplier either, so I guess that must be working too....)
In the old days, Z80's were speced 100khz - 1MHz. You could run them at 1Hz, and probe the (live) bus with a led...... Or single (*) step them with a simple button.....
Roger.
(*) Well, a bounce (**) of the button would occasionally forward the chip more than one cycle.... (**) Those are usually "ms" range events.
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