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About VRMs & Mosfets / Motherboard Safety with 125W+ TDP processors - Page 5

post #41 of 1100
Yep sticky vote.

+ Rep xd.
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post #42 of 1100
Sticky for sure....I already knew about this cause XD warned me earlier...thanks again XD good complete guide here.also a good reference on what to buy and what to look for when buying...
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post #43 of 1100
Does this mean I shouldnt run an unlocked x3 440 @3.5 on this board? http://www.asrock.com/mb/overview.as...M3A785GXH/128M
post #44 of 1100
Quote:
Originally Posted by LostRib View Post
Does this mean I shouldnt run an unlocked x3 440 @3.5 on this board? http://www.asrock.com/mb/overview.as...M3A785GXH/128M
This depends on what voltage your CPU/NB is using at those speeds;
I don't think there will be much (if any) difference in Vcore between your current OC and 100mhz lower.
Mosfets provide power for CPU/NB so keep an eye on the voltages rather then the reference clock.
Edited by Problame - 2/17/11 at 7:59am
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post #45 of 1100
Thread Starter 
Quote:
Originally Posted by dcyli View Post
DDR3 1333.
I went with my current one because it could crossfire + 1600MHz compatible
See the other thread I made that's supposed to be stickied another common OCN misconception I did a shorter write-up about.

Quote:
Originally Posted by Problame View Post
Nice guide, sticky it!

I've been pleasently supprised with the quality of Biostar boards
Wonder if there is any Matx board equal to or better then this?
None with a similar 890GX chipset (they're all 880G) as far as I'm concerned!

Quote:
Originally Posted by rocstar96 View Post
Does this happen with Intel Sockets with MSI Boards?
Intel phases are usually different (and in fact often more numerous)... I think it applies to Intel as well, but with the majority of their CPUs being 95W-130W and not usually above, I don't think it happens too much.

LostRib: I'd doubt it, 95W stock TDP, VRMs are a 4+1 unheatsinked... they're pretty cheap looking too. This is an older ASRock mobo. not so much of quality. With a Hyper 212+ and air skipping over everything, I'd be wary if I were you. See if you can figure out the temps; adding a mosfet heatsink may make the situation a bit safer for you.
Edited by xd_1771 - 2/17/11 at 8:06am
post #46 of 1100
Great read, thanks xd_1771 +rep
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post #47 of 1100
It is also fair to point out that many times, the # of power phases have been often times employed by motherboard manufactures as a gimmick. A good 8 phase board (w/ digital VRAM) can sometimes out perform older boards with lets say, 24 power phases.

Lot of it comes down not to how many power phases a board has, but how well it regulates voltage under load.

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post #48 of 1100
It's good to know that Biostar is getting some respect for their newer boards. I have been nothing but happy with my TA790GXB3 board.

http://www.newegg.com/Product/Produc...82E16813138163

And it just went down in price as well which makes it a good buy. I unlocked my 80W X2 545 to a quad and OC'd it up to 3.37 on stock volts. I am not having any issue with it at all. And I just checked the mosfets and they are completely cool to the touch.

But I also don't plan on trying to go any further with the OC. I am happy with my 12.5%. No need to push things. Caution is a good thing unless you have lots of money (and possibly a fire extinguisher).
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post #49 of 1100
my board has an 8+1 phase. so that basically means that my imc/ram is running off one phase rather than two? is there much of a difference between 8+2 vs 8+1, for example, ram voltages not being as stable when trying to OC ram or tighten timings?

also, if the specs say 8+1 what is the extra mosfet in the upper right corner of the board (in between dimm slots and turbo key) see here
Edited by fazio93 - 2/17/11 at 10:10am
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post #50 of 1100
Excellent post!
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