Gigabyte GA-EP45-UD3P with broken MOSFET/VRM

[Tech Tweaker]

I have an EP45-UD3P here with a broken MOSFET. It is physically broken with a large chunk broken off from it resulting in nearby components not functioning.

My problem is I can't seem to figure out what its ratings are and/or where I might locate a replacement. Probably due to my inexperience with electrical parts and I don't understand how to read its ratings and what they mean.

The part number is AP3310GH (date code 839048), made by Advanced Power Electronics Corp..

I'd like to purchase a replacement through digikey, since I normally buy capacitors from them and know they are reputable, if only I could figure out what I need to buy in order to replace the broken one.

If anyone could help me it would be appreciated.

 

[Bobnova]

20 volts 10 amps P channel, probably the TO-252 package.
Where is it on the board?

This is as close as I can find on Digikey: http://www.digikey.com/product-detail/en/NTD25P03LT4G/NTD25P03LT4GOSCT-ND

Part number: NTD25P03LT4G

 

[Tech Tweaker]

20 volts 10 amps P channel, probably the TO-252 package.
Where is it on the board?

This is as close as I can find on Digikey: http://www.digikey.com/product-detail/en/NTD25P03LT4G/NTD25P03LT4GOSCT-ND

Part number: NTD25P03LT4G

Thanks for the reply Bobnova.

It's on the right side of the board next to the Sys_Fan2 header and the GSATA2_0 and GSATA2_1 ports, between the fan header and memory slot 4 (or 3 if you count from 0).

Here is the broken MOSFET:




A picture of a good mosfet in the same location on another EP45-UD3P:


As you can see, since it was broken in half the part number is not readable on the broken one, so I had to use the part number from the good one.

 

[Bobnova]

Weird that it broke.
What is it that isn't functioning? Fan header? SATA ports?

 

[Tech Tweaker]

Weird that it broke.
What is it that isn't functioning? Fan header? SATA ports?

The Fan header is the only thing I know of, didn't test the SATA ports, but being right next to it they're probably not working either.

I put my multimeter leads on the fan port and was only getting 40-50mV when I tested it, nowhere near enough to power a fan.

 

[Bobnova]

I would guess just the fan, that's probably where the voltage fan control comes from.
The MOSFET I linked above is probably the best bet from Digikey. They have a couple that are closer, but they're only available in lots of >1000.