I've been dealing with this 15" touchscreen monitor from the early 2010s. Over time, it has become more and more difficult to power on. As soon as a video signal comes in, the Faytech logo appears on the screen and then it goes black. Then a couple of seconds later the Faytech logo comes back up on the screen and it goes black again. This process repeats over and over again. Eventually if I leave it on long enough, the video display finally comes up and it works fine. The longer I leave it turned off, the longer it will boot loop before working correctly again. I tried a different AC adapter...

Re: Intel DX58SO high side VRM MOSFET keeps failing

Hi PeppercornFox,

The DX58SO is still doing fine for over a year now, although I haven't been stressing it even close to any limits, and I don't really power it up super often either. I still have my i7 920 in it with the stock cooler. I really do think that this motherboard likes the stock cooler better because it does a better job of cooling off the VRM than the Hyper 212 EVO I was using before.

Re: Intel DX58SO high side VRM MOSFET keeps failing

I sat down to look at the motherboard and realized how intimidating it would be to replace all of the MOSFETs. I really struggle to heat the board up enough with my cheapo hot air station, especially with the lead-free solder. I don't trust myself enough to replace them all without ruining something.

So instead, I tried replacing the blown high-side MOSFET again, but this time I also replaced the driver chip (ADP3121) with a brand new one too. It worked at first, and my Xeon seemed to be okay. But sure enough, the...

Re: Intel DX58SO high side VRM MOSFET keeps failing

Thank you! That makes sense, I didn't think about the fact that it would also stress all of the other low side MOSFETs. Only the high-side MOSFETs were available on Digi-Key, so I did have to resort to utsource for the low-side MOSFETs and drivers. We'll see how it goes...

Hi there,

I have an Intel DX58SO motherboard that failed last year. One of the high side VRM MOSFETs failed shorted, and it killed my i7 980 CPU. This motherboard has a 6-phase VRM. The parts used on this motherboard's VRM are:
[LIST][*]6 x High side MOSFET: NTMFS4841NH[*]6 x Low side MOSFET: NTMFS4834N[*]6 x Driver: ADP3121JCPZ[/LIST]

It was easy to figure out where the short was, because the bad MOSFET's gate was shorted to the drain/source too. Once I removed it, all the shorts were gone on the motherboard, and I confirmed on the removed MOSFET itself that...

Re: New Members - please post your introductions here

Hi everyone. Love this site, it's always been a great reference for finding info about power supply caps and motherboard repairs. Always looking to expand my knowledge!