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October 21, 2006, 1:24 am
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how does the mobo know how much juice to give the chip? does it just
send a constant voltage to the chip or does the chip tell it how much
it needs? i need to know soon b/c im about to get a pentium 233 mmx.
it runs on 2.8 volts and i dont want to fry it. also, about how warm
would the 233 run with a pretty big heat sink and a fan. i got a tall
boy (i got it from radio shack, its about 2in high).
Re: core voltages
Regular P133 is 3.3V
P133MMX is 2.8V, "IF" there was an MMX version of that
speed- I don't remember.
There are voltage jumpers, documented in the motherboard
manual or sometimes markings silkscreened onto the board
well enough that they can be deciphered.
There is a programmable voltage regulator on the board that
provides the voltage set by a (usually two rows of) pins.
You didn't mention the specific hardware (motherboard make
and model). It might be that all you need is a good
flashlight to look around on the board for the jumpers.
P233MMX is easy to keep cool, any normal socket 7 heatsink
will do fine in a properly set up (reasonable amount of
airflow) system. I can't see your P133 heatsink though so I
can't tell you if it was normal or better or worse (than