EVGA GTX 1070 Ti - 0.5V on 5V rail - help identify ic

[ktmmotocross]

hello.
I have this EVGA GTX 1070 Ti that have 0.5V on 5V rail. i look at the regulator ic, but i cannot identify it. can u help?

[DynaxSC]

Re: EVGA GTX 1070 Ti - 0.5V on 5V rail - help identify ic

MP1475 by Monolythic Power Systems.

[ktmmotocross]

Re: EVGA GTX 1070 Ti - 0.5V on 5V rail - help identify ic

thanks mate

[ktmmotocross]

Re: EVGA GTX 1070 Ti - 0.5V on 5V rail - help identify ic

with datasheet i found shorted VIN to 5V regulator, next i found shorted capacitor in this lane. after replace i have 3.5V on VIN of regulator, so i search and fid that fuse dont blow but go high resistance avout 15kohm. that makes 12V on one side and 3.9V on other side. after fuse replace i have all voltages and card work normal

[SMDFlea]

Re: EVGA GTX 1070 Ti - 0.5V on 5V rail - help identify ic

Monolythic Power parts have a vertical or horizontal bar on them, its not a letter (not capital I) .https://www.badcaps.net/forum/showpo...85&postcount=3

[DynaxSC]

Re: EVGA GTX 1070 Ti - 0.5V on 5V rail - help identify ic

That's perfect, I'm happy it worked out. BTW, one good way to get from the marking to the part is using Aliexpre...' search engine. However usually some last one or two digits/letters is a batch/date code, so in this example only "ADP" is meaningful, also as SMDFlea stated, the bar is to be omitted as meaningless.

[tonycstech]

Re: EVGA GTX 1070 Ti - 0.5V on 5V rail - help identify ic

I have 1v missing.
U7 chip gets 5v and 3.3 but enable is not present.