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About VRMs & Mosfets / Motherboard Safety with 125W+ TDP processors - Page 9

post #81 of 1100
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The Rampage III appears to use a much better 8-phase design

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post #82 of 1100
Just an fyi, msi is aware of the problem, and are correcting it on their next generation of boards.

If you notice, the 890fxa-gd65 is 8+2,with a massive heatsink.

Also for reasons unknown to me, msi intel boards are almost all 6+2 (very high quality driver mosfets) or higher



One more thing: you should probably add that 4+1 if implemented properly can support high loads. (Biostar ta870 for example is a very good overclocker.)

And I'm 80% sure that the 890fxe is 6+1, I count 7 choke+mostfet combos. 6 in a line, and one offset a bit

Otherwise, very good job. I was going to make a guide like this, but i guess you beat me too it
Edited by reflex99 - 2/17/11 at 11:21pm
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post #83 of 1100
My old MSI 790FX GD70 latest less then 45 minutes when I started to overclock my current 1075T
post #84 of 1100
Thread Starter 
The TA890FX is 4+2; 4 phases CPU, 2 phases IMC. That 7th phase is for mobo chipset. This is from counting the patterns of the mosfets/other components, not just chokes.
post #85 of 1100
Hmmmm so what if my TMPIN2 temps are quite low?

I have a 870a-g54 with a Phenom II x2 555 unlocked to 3 cores running at 3.8ghz w/ 1.45v.

Idle processor temp is 34°C
Idle TMPIN2 temp is 32°C

Load processor temp is 52°C
Load TMPIN2 temp is 34°C

TBH I am going to keep my OC and unlocked core, simply because my friend runs a Phenom II x6 on the same mobo and has been for well over 6 months.

Also IF the worse does happen I have a spare mobo I can use while I RMA, a blown VRM rarely damages any other parts. I don't feel it's worth losing an OC and unlocked quad (for most people) for this small risk, I say small because they're have been very few instances of this and I have only come across the problem on a few forums (in fact mainly just this one).

Let me know about that TMPIN2 temp however, I heard for most people it will go to 100°C before the mosfets will blow so either hwmonitor is picking up the wrong sensor or my VRM is by far cool enough.
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post #86 of 1100
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unlocked to 3 cores would consume less TDP by default... but after overclocking I'd take into account the concern. Apparently not all TMPIN2 temps are mosfets... depends on the board really. I should put that down actually.
post #87 of 1100
I also vote for this to get stickied, awesome guide XD_1771.
    
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post #88 of 1100
Quote:
Originally Posted by xd_1771 View Post
unlocked to 3 cores would consume less TDP by default... but after overclocking I'd take into account the concern. Apparently not all TMPIN2 temps are mosfets... depends on the board really. I should put that down actually.
Hmmm could I look at the board and try to spot the sensor?
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post #89 of 1100
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Spot the sensor? Sensors are usually invisible things controlled by a single sensor chip that is different on each board. Unless they're add on sensors from, say, fan controllers.
post #90 of 1100
I think if you want it to get stickied, you should probably remove the MSI bashing. Even though it is mostly true, it doesn't really help the chances of it getting stickied
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