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Motherboard Power Phase ~ Please Explain?

post #1 of 5
Thread Starter 
Okay so alot of people have been telling me not to unlock or overclock my PII 555 to a Quad, as the 3+1 Power Phase on my mobo is limiting. However, this is the best m-ATX ASUS mobo i could find to fit in my case... dissapointing to say the least.

Then i've heard from others that ASUS actually automatically will downclock the CPU if the VRMS/MOSFETS get too hot, which does make sense. I just don't even get what a 3+1 Power Phase is and how to tell what kind of Power Phase a motherboard has prior to buying it (as i know they leave that out of the "specs").

Also, to anyone else with a 3+1 Power Phase that they know of, how have you been doing on overclocking/unlocking? I kept my PII unlocked to a Quad for well over a month with no issues whatsoever... however i want to know your experiences.

Disuss !
Edited by HeartOfAHydra - 3/14/11 at 1:33pm
post #2 of 5
Power phases essentially bring power to the various components on your motherboard, such as your CPU. If you try to draw too much power the can fail, and just like your PSU, can kill components if they do so.

Heres some further reading on it: http://www.overclock.net/amd-cpus/94...hy-choose.html
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post #3 of 5
Snagged this from another thread

Quote:
Originally Posted by Tw34k View Post
Check these out.

AMD Motherboard power phase list
http://www.overclock.net/amd-motherb...hase-list.html

Why VRMs are a big issue, and why to usually avoid 4+1 phase with 125W AMD CPUs
http://www.overclock.net/amd-cpus/94...y-usually.html

A short Power Phase Design explanation
http://www.overclock.net/amd-motherb...planation.html
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post #4 of 5
All good info above.

From my personal experience (see my mobo in the sig) I can tell you that up to 25% overclock is OK. Make sure you have decent air flow and that CPU under the load stays below 50 C (AMD chip).
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post #5 of 5
I never noticed that power phase design explanation before, looks like a good read. I'll sig it. Definitely give those articles a good look.
EDIT: It is in correct in that 1 phase is dedicated to the RAM - I'll PM AMDZ now about it. Just something to know when you read that.

myEZweb_net's board is a heatsinked 4+1 phase that's actually quite decent, on an appropriately moderate unlocked x2 overclock.
Edited by xd_1771 - 3/14/11 at 4:37pm
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