Rampage 3 Black Edition/Extreme IC Question

[Gigelz]

hey,

 

i hope someone can help me. an ic on my rampage 3 black edition smoked up for no reason i think the layout on the normal vanilla extreme version is the same. i need the designation from the ic in order to get an replacement for soldering action. here is a photo of the desaster:

 

[Guest Wimpzilla]

Thx @TiN for the good pictures quality, took me quite bit to find a decent picture.

 

Not the same MB but the IC seems to be the same kind, so take it as an example if you do not get something better.

 

See here: Sandy Bridge : Let the battle begin... - kingpincooling.com

And here: https://xdevs.com/kpc/sandy/m4e/cpuvrm_big.jpg

The datasheet: http://www.farnell.com/datasheets/192146.pdf

 

This one should be used to power the controller logic or the PWM fan i think, so before soldering a new one check the res to ground of the other components around. To be sure to no have a short or other smd half fried.

Enjoy your soldering rework.

Edited October 2, 2017 by Wimpzilla

[Gigelz]

Thx @TiN for the good pictures quality, took me quite bit to find a decent picture.

 

Not the same MB but the IC seems to be the same kind, so take it as an example if you do not get something better.

 

See here: Sandy Bridge : Let the battle begin... - kingpincooling.com

And here: https://xdevs.com/kpc/sandy/m4e/cpuvrm_big.jpg

The datasheet: http://www.farnell.com/datasheets/192146.pdf

 

This one should be used to power the controller logic or the PWM fan i think, so before soldering a new one check the res to ground of the other components around. To be sure to no have a short or other smd half fried.

Enjoy your soldering rework.

you are my life saver can you explain what should i measure with my dmm ? i am relatively good at electronics and really really good at soldering. but not an electronic expert

[Guest Wimpzilla]

Np mate your welcome.

 

When you unsolder the burnt one, take your multimeter in resistance measure mode.

 

Measure the resistance of each pad compare to the ground. You should get high value of resistance, i mean in hundred, kilo, mega ohms, meaning that the current travelling through healthy component offer some resistance compare to ground.

If you get really low values of resistance it mean that some component are not healthy and offer a path to ground where it should not be.

 

You can also use your continuity measure of the multimeter to probe between the pads and the ground. You should not have continuity on all pads, only on the ones that are really connected to ground. It is less precise but give a rough indication too.

 

If you find another of these IC on the mb, you could use it as example to get healthy values of resistance compared to ground.

 

Again it's not the same MB, but i think the IC should be similar, look carefully if you are able to identify at least some part number of the burnt one and compare with the datasheet i gave you, to confirm somehow that what i found could fit with yours. I could read somehow "FDS" on the burnt one so i hope it's the same kind.

 

Change the IC, try the MB and hope it will come back to life.

Edited October 2, 2017 by Wimpzilla