Unknown component

[davidclancybell]

I am attempting to repair a Asus Z97 MB. I had a puff of blue smoke from a component. Does anyone know the component I need to replace, pic attached

[james_s]

That's a resistor network, going by the number on it I'd say it's a 0 ohm network, ie a set of jumpers. What caused it to burn up? Jumpers don't just fail, something resulted in an excessively high current at which point that device acted as a fuse.

[davidclancybell]

thanks for that. Not sure why it smoked, the pc has been in storage for a while and there seemed to be some corrosion on one of the pins. I am ok at re-soldering so what am I ordering on Ali-express to replace it. Do you think this would prevent the machine posting? Thanks

[Cerebus]

Are you sure the puff of smoke didn't come from the package to its right? That's most likely a transient voltage suppressor (TVS diode array) and that's a device I'd expect to smoke itself if the wrong thing went into the USB port that it's connected to. A zero ohm resistor array is probably going to be a relatively tough customer.

[davidclancybell]

Think I found it but no idea what it is or why it blew

[fzabkar]

That looks like a DC-DC converter, assuming it drives the nearby inductor.

[davidclancybell]

OK thanks for that. Would you have any idea on the package number, going off what's left showing

[fzabkar]

It's best to view the part in the context of its surroundings, but if I were to hazard a guess, I'd say that its manufacturer was ON Semiconductor, or maybe Richtek.

Can you show us a more complete picture of the board?

BTW, there is a possibility that Vin has punched through to Vout, in which case their may be additional damage downstream. Can you measure the resistance between the inductor and ground?

[davidclancybell]

Sure can. Thanks

[davidclancybell]

chip ringed

[Rasz]

why not check on a boardview https://drive.google.com/file/d/1Lt-KG7f6BGhJb25VW0Ds5fCsUovouYS0/view

[perieanuo]

maybe https://www.richtek.com/assets/product_file/RT8065/DS8065-08.pdf i'll have to dig more, i don't have exactly your mobo schematics
finally i opened one board view ASUS Z97-A REV 1.03B - Boardview (.FZ), it's (almost for sure) RT8065ZQW

[davidclancybell]

thanks guys. Trying to open the .fz file with Fritzing but get a parsing error at line 1

[james_s]

Why are you trying to open it with Fritzing? It says it's for Boardview which is a different program.

Fritzing is garbage IMO, I have no idea how it got as popular as it did, the sooner it dies the better.

[davidclancybell]

OK got it using BoardViewer