Hi,

After probing a faulty Sapphire 7750 video card, I isolated the problem to one of the MOSFETs, marked 4926N RWU4L. After searching, I found the datasheet:
[url]https://cdn.badcaps-static.com/pdfs/eaff1139fc4fdae450f1f1b8b5d8a6ee.pdf[/url]

Only problem is, it's impossible to find this MOSFET in my country (Bulgaria).

My idea was, to buy a more standard format MOSFET with matching specifications and use that in place. It'll be ugly but it may bring back the video card cheaply.

Having checked, I can obtain this MOSFET locally:...

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Hello, I'm very grateful for the information on this site, it's been very helpful!