Can Someone Please Tell Me What These Are?

[bg8780]

Hey Guys! I was doing work on my computer and when I when to boot it up these smoked and obviously the mobo is dead now. But just for trouble shooting purposes and so i can identify what went wrong i need to know what these are. And what could have caused them to blow. I am reffering to the black inline boxes that have R50 on them.

 

Thank you guys!!

[nVidia_Freak]

Nvm, thinking of the wrong thing.

[damian]

I think those are the Mofetts. If i'm right they are probably smoking because thermal compound got on them which are conductive and caused them to fry (thats what happen to me, except mine caught on fire )

They do get pretty toasty

just my two cents

[jammin]

I think those are the Mofetts.....

They do get pretty toasty.

 

Which is why they put heatsinks on top of them.

 

The blocks with R50 printed on them will be inductors, but don't ask me to explain exactly what they do, because I can't.

Edited September 16, 2008 by jammin

[Queenz]

mosfets

[bg8780]

well im pretty sure the smoke came from the blocks that have R50 printed on them, but the smoke could have came from under that little heatsink too. Queen can you please tell me what mofsets do?

[ben333]

I don't think those are mosfets but rather inductors as jammin said or some kind of voltage regulator - both would get hot. As for the thermal paste I've yet to see one that was conductive but I suppose it is possible that it could have caused a short.

 

can you please tell me what mofsets do?

The MOSFET is a device used to amplify or switch electronic signals.

(wikipedia)

Edited September 16, 2008 by ben333

[dr_bowtie]

Those are voltage regulators for the Mosfets....

 

all thats inside those is a heavy copper wire (14-12gauge) wrapped around a tiny magnet to control voltage....

 

thats all....

[markiemrboo]

They are not MOSFETs. They're 0.5uH(?) inductors like Jammin said. They oppose changes in current, where a capacitor opposes changes in voltage (attempts to keep constant).

Edited September 16, 2008 by markiemrboo

[paulktreg]

The R50 on the top would lead me to say they are 0.5 ohm resistors. Would inductors not have H or uH? I will look into this one later if nobody comes up with a definitive answer.

 

Regards

 

Paul

Edited September 16, 2008 by paulktreg

[slick2500]

I have put AS5 on those before and mounted a custom heatsink on top of them, the mobo is still kickin to this day.

[Puck]

They are not mosfets or resistors, they are inductors. Probably .5 micro henrys like markie suggested.

 

They should really not be getting as hot as the mosfets, and especially not hot enough to cook themselves..you sure it was them and not the mosfets under that heatsink to the side of them?