Asus P7H55-M LX missing fet

[chad720]

Hi there!
I recently got an asus P7H55-M LX mobo, with a missing mosfet.
The one missing is at position PU203, and I can´t get a high res pic so I can´t identify it, so I´m asking if any of you have one to please tell me wich code does it have.
To further references, I´m adding a pic with the position of the mosfet.
Thanks in advance
Chad.

[chad720]

Re: Asus P7H55-M LX missing fet

nobody? anybody? please help...

[c_hegge]

Re: Asus P7H55-M LX missing fet

I have the non-LX version of that board (P7H55-M). It's slightly different, but I think I might have located the equivalent FET on it. On the board I have, it's between the two PCI-E X1 slots. It's a BCD Semiconductors AZ1085D.

[spleenharvester]

Re: Asus P7H55-M LX missing fet

Is the board malfunctioning? What does it do?

Different revs of the board may have certain parts removed. Are you sure there was a MOSFET there, even though soldered pads are present?

[Duncanbest]

Re: Asus P7H55-M LX missing fet

FYI

http://diy.yesky.com/uploadImages/20...S_DSC03113.JPG

UTC UZ1085L

[chad720]

Re: Asus P7H55-M LX missing fet

Many many thanks to all of you!! I will buy (or recicle from scrap) this 3A ADJUSTABLE/FIXED LOW DROPOUT LINEAR REGULATOR and see how it goes... I will keep you updated.
Thanks and good luck!!
Chad

[chad720]

Re: Asus P7H55-M LX missing fet

hi guys! how´s everyone? I have tested with two diferent 1085AD (adjustable) with no luck, fet overheat and the power led light but dim... if I try without that fet power led bright well but I think I have no power voltage as it doesn´t start.
Does any of you have the shcematic for this mobo? or know how that 1085 should be working? no short on board, maybe a cap is bad or something.
Any help would be really apreciated
Thanks for reading and good luck

[stj]

Re: Asus P7H55-M LX missing fet

check for shorts between ground and the output pad/pin - it may be a bad ceramic capacitor.