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About VRMs & Mosfets / Motherboard Safety with 125W+ TDP processors - Page 96

post #951 of 1100
Quote:
Originally Posted by xd_1771 View Post

^ I'm not so sure.  With the VRMs being a huge 16 phase and the power going through each phase not being very much, it might not be an issue.... but I would be sure and try to fit the heatsinks back on.  Some cooling is better than none.

I think the VRMs are getting a bit of cooling with the air being pulled over them by one of my massive TY-140 fans. The question is, would it be safe to overclock? If I put the heatsink back on then of of the fans have to come off my CPU cooler.

One of the TY-140s virtually sits on top of the VRMs so I'd like to assume that it is pulling air over them.
Edited by MercurySteam - 12/19/11 at 9:43pm

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post #952 of 1100
Thread Starter 

Check this out.  Looks like VRM cooling (as in, airflow cooling, not just heatsink!) can be considered a MUST on the power-hungry X79 platform:
GIGABYTE X79-UD3 VRM fire!

 

This is quite unusual really since GIGABYTE normally uses quality FETs.

post #953 of 1100
1 failure != trend......

idk how many times i have said this
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post #954 of 1100
Thread Starter 

When did I say anything about this possibly becoming a trend and that everyone should be worried about it to the max extet already? tongue.gif

It does help to note that the lack of airflow to the VRM area as well as the power hungry nature of the LGA2011 platform may have contributed to this.  It's a single failure, sure, but it's definitely a sign that precautions may need to be taken on this platform, i.e. a fan over the VRMs.  Considering these are quality FETs this is very, very unusual.

post #955 of 1100
you are trying to say that he could repeat this all day.

No, we don't know that. It is equally likely that it is/was a manufacturing defect.

Recommending fans and stuff indicates that you believe it is a widespread issue (trend).
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post #956 of 1100
Quote:
Originally Posted by xd_1771 View Post

When did I say anything about this possibly becoming a trend and that everyone should be worried about it to the max extet already? tongue.gif
It does help to note that the lack of airflow to the VRM area as well as the power hungry nature of the LGA2011 platform may have contributed to this.  It's a single failure, sure, but it's definitely a sign that precautions may need to be taken on this platform, i.e. a fan over the VRMs.  Considering these are quality FETs this is very, very unusual.
Quote:
Originally Posted by reflex99 View Post

you are trying to say that he could repeat this all day.
No, we don't know that. It is equally likely that it is/was a manufacturing defect.
Recommending fans and stuff indicates that you believe it is a widespread issue (trend).

Relax guys biggrin.gif

xd meant well. Reflex may be right in the issue being a manufacturing defect. No harm done smile.gif
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post #957 of 1100
XD does this allllllllll the time....

and we fight about it ALLLLLLLLLLL the time.

"one board died"....."ALLL OF THEM MUST HAVE THIS PROBLEM!"

it doesn't work like that lol. rolleyes.gif
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post #958 of 1100
True using some alternate cooler such as water cooling can increase the chance of MOSFET overheating and failing, some mobo have been reported to fail with either stock CPU cooler or decent aftermarket air cooler as well. Also extreme CPU voltage or using over-rated CPU can overload the MOSFET ie a 140w AMD CPU on a 125w mobo.

A combination of faulty chips, higher than standard voltage, and/or poor cooling can accelerate the failures.
    
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post #959 of 1100
I need help. I ordered an Phenom X4 9950 Agena, the one with a 140 watt TDP. And I also got this motherboard that has superior functionality for OCing, http://asrock.com/mb/overview.asp?Model=N68C-S%20UCC&cat=Specifications.

My question is, the MOBO is rated 95 watt max and my 9950 is the only X4 processor not listed on the supported CPUs list (how ****ty...) but is there a way I could set a cap on how much wattage the CPU can draw? I have a 750 watt PSU on the way so power isn't the problem, the motherboard is.

I've got a http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=4143848&SRCCODE=WEBLET03ORDER&cm_mmc=Email-_-WebletMain-_-WEBLET03ORDER-_-Deals CPU heatsink

and I have a box fan blowing on my tower in case there's not enough airflow.

What do you think?
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post #960 of 1100
140w processor is really pushing it
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