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A question regarding the maximum wattage of CPUs that a mainboard supports

post #1 of 9
Thread Starter 
Hello,

On some mainboards its written - for example - , "Supports up to 95 Watt CPUs". Does this mean i can't overclock if i get a 95 Watt CPU for this mainboard? Because if i do, it will spend more than 95 Watts

Btw as you see this is my first message although i have been reading your website a lot. I am mostly a reader.. It's nice to be here with you guys.

Thanks..
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post #2 of 9
It is not recommended to OC on a 95W board. The board isn't capable of delivering a lot of power to the CPU, so when you make the CPU run faster and draw more power, chances of it dying are very high akin to this.
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post #3 of 9
I dont think its impossible, but it would produce a lot of stress and most likely it would mort and catch on fire.
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post #4 of 9
If your buying a 95w CPU then Id recommend getting a 125w board. Overclocking requires giving the CPU more power, so if it runs out of power, it usually just dies..
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post #5 of 9
Read this:

http://www.overclock.net/amd-cpus/94...fety-125w.html

Just like a light bulb, if you run more watts than your hardware is rated, things can and will burn out. Best case, you get throttling.
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post #6 of 9
Pretty much if a motherboard has a wattage rating for the cpu it is a suggested rating.Meaning it will handle the rated cpu at that wattage.Will it hold more yes but how much more is the question.It is like a air tank it will have a rated working pressure at 200psi with a max pressure at 250psi.That does not mean it will fail at 250 or higher it means it has a better chance to fail.So by using the example I gave it can handle more.I personally would not overclock a 95w cpu on a 95w board just for the fact overclocking is stressing the board and the cpu and would like the extra headroom for a better chance of it not failing(catching fire etc).

So answer the OP question a wattage rating is for everyday use.Can it hold more under short periods yes.Will it hold more for everyday use prob not.
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post #7 of 9
Thread Starter 
I got you all well. Now if i get a mainboard that supports 125 Watts and i plug my 95 Watt CPU on it, is there a software tool that i can use so i can see that my overclock attempts won't exceed 125 Watts,thus no risk of catching fire? My computer is back from 2002 and so i dont know if mainboards of nowadays come with is a free software that can do this
Edited by adre - 7/19/11 at 9:17am
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post #8 of 9
Quote:
Originally Posted by adre View Post
I got you all well. Now if i get a mainboard that supports 125 Watts and i plug my 95 Watt CPU on it, is there a software tool that i can use so i can see that my overclock attempts won't exceed 125 Watts,thus no risk of catching fire? My computer is back from 2002 and so i dont know if mainboards of nowadays come with is a free software that can do this
VRM count and quality matters more than the CLAIMED "maximum wattage". I had a Gigabyte 760G motherboard with an Athlon II x4 at one point (95w CPU, board claimed 140w support). Problem was, that board had a 3+1 power phase, which is only really suitable for 65w or less CPU's. As such, it caught on fire (literally) at bone stock settings while installing Windows.

Check the sticky here in the Motherboards section regarding phase count. Pick a board that has a decent phase count (or the Biostar 890FX, even though its 4 phase), and you'll be good to go.

You'll want at least 6-8 phase (or more) for 125w CPU's (with the exception of Biostar).
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post #9 of 9
Thread Starter 
pioneerisloud: I am checking the sticky now. Thanks
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Little monster
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Win 8.1 -64 bit Philips 190vW D-sub 1440x900 LG 29'' 2560x1080 Logitech Cordless Internet Pro 
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