This is a Soyo (SY-)P4VTE motherboard that got screwed over by a bad video card. The card was inserted and had a short, which burnt out a MOSFET and blew a small capacitor near the AGP slot. The board powers up fine, but of course doesn't post or power up video.
The MOSFET in question is a Niko Semiconductor P3055LD, basically an N-channel 25V/12A model in To-252 packaging. The datasheet is at http://datasheets.ru/datasheets/3932...a-P3055LD.html. I've been unable to find it (or an equivalent) at Mouser Electronics, DigiKey, or Jameco. I e-mailed all to get either no response or simply "can't help you". I've also got a message in to Niko Semiconductor (http://english.niko-sem.com/in/front...CompanyProfile) at all the contacts they've listed as they don't list a technical contact and don't appear to deal with the US directly. Incidentally, Niko appears to make a P3057LD with the same specs.
The blown cap, marked CB26 on this board, is unidentified and long gone. I *do* have another of these boards, but it's simply a brown surface-mount cap with no markings on it. How can I (non-destructively) measure capacitance to ID it? Can I make measurements while connected on the working, good board?
I'd appreciate any help identifying these components and equivalent substitutes I can get in the US.
Thanks in advance!
The MOSFET in question is a Niko Semiconductor P3055LD, basically an N-channel 25V/12A model in To-252 packaging. The datasheet is at http://datasheets.ru/datasheets/3932...a-P3055LD.html. I've been unable to find it (or an equivalent) at Mouser Electronics, DigiKey, or Jameco. I e-mailed all to get either no response or simply "can't help you". I've also got a message in to Niko Semiconductor (http://english.niko-sem.com/in/front...CompanyProfile) at all the contacts they've listed as they don't list a technical contact and don't appear to deal with the US directly. Incidentally, Niko appears to make a P3057LD with the same specs.
The blown cap, marked CB26 on this board, is unidentified and long gone. I *do* have another of these boards, but it's simply a brown surface-mount cap with no markings on it. How can I (non-destructively) measure capacitance to ID it? Can I make measurements while connected on the working, good board?
I'd appreciate any help identifying these components and equivalent substitutes I can get in the US.
Thanks in advance!
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