CPUs dissipate their full consumed electical power as heat (at least, >95% of it), so the two are effectively one in the same.

Modern motherboards derive all the CPU power from the +12v rail, but you must figure them to be about 70-85% efficient, at best. Also, AMD rates their processors high...the X2 4800+ doesn't pull 110W. If you figure 90W draw* full load at 75% efficiency, you're pulling about 9.3A off the 12v rail.

* = 90W is probably a bit high.

Greg

----- Original Message ----- From: "Thane Sherrington (S)" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, May 10, 2006 1:50 PM
Subject: [H] CPU Thermal Power


When an X2 4800+ is rated at 110W Thermal Power, does that mean it's pulling 9.2A on the 12V line, or is this just a measure of heat dissipation? If it's just heat dissipation, does anyone know how many amps the X2s pull from the various lines?

T




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