core voltages

  • Thread starter Thread starter GIRunit
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GIRunit

i need to know what the core voltage rating for a pentium 133 is. plus
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).
 
i need to know what the core voltage rating for a pentium 133 is.
Click to expand...

Regular P133 is 3.3V
P133MMX is 2.8V, "IF" there was an MMX version of that
speed- I don't remember.
plus
how does the mobo know how much juice to give the chip?
Click to expand...

There are voltage jumpers, documented in the motherboard
manual or sometimes markings silkscreened onto the board
well enough that they can be deciphered.
does it just
send a constant voltage to the chip or does the chip tell it how much
it needs?
Click to expand...

There is a programmable voltage regulator on the board that
provides the voltage set by a (usually two rows of) pins.


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.
Click to expand...

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.

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).
Click to expand...

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
average).
 
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