DELL GTX 660 1.5GB - schematics

N²x²N

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Join Date: Apr 2023

Posts: 54

Country: Italy
#1

DELL GTX 660 1.5GB - schematics

04-10-2023, 11:51 AM

Hello yet again!

I have this DELL GTX 660 with 1.5GB of GDDR5.

One +12V MOSFET died, removed and no more 6-pin short.
It was displaying "connect +12V" error. Once removed the mosfet, it worked but with one less +12 power rail. Tested a bit with OCCT but not for long.

I soldered a new MOSFET but fried again. The issue was elsewhere.
At some point another +12V died and this time it wasn't powering on anymore.
Even PEX isn't getting voltage anymore.

The issue was a smaller component, NCP81062, "driver". Removed, no more shorts.
I ordered the components but they got lost.

I was wondering if anyone had the schematics for this board or any other GTX660 base model.

Thanks for any input!

All involved components:
- https://pdf1.alldatasheet.com/datash...MFS4927NC.html
- https://pdf1.alldatasheet.com/datash.../NCP81062.html
- https://pdf1.alldatasheet.com/datash...MFD4902NF.html
- https://www.alldatasheet.com/view.js...4936N&sField=3
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N²x²N

Senior Member

Join Date: Apr 2023

Posts: 54

Country: Italy
#2

04-10-2023, 03:48 PM

Re: DELL GTX 660 1.5GB - schematics

Aka GTX 660 OEM 192 bit
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DELL GTX 660 1.5GB - schematics

DELL GTX 660 1.5GB - schematics

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