• RTX3060 GV-N3600 GAMING OC-12GD - brak zasilania GPU, skąd jest zasilany UP9512R?

It is currently 8 April 2025, 13:15

 [SOLVED] RTX3060 GV-N3600 GAMING OC-12GD - brak zasilania GPU, skąd jest zasilany UP9512R?

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#1 RTX3060 GV-N3600 GAMING OC-12GD - brak zasilania GPU, skąd jest zasilany UP9512R?

by poster • 4 April 2025, 10:03
GV-N3600 GAMING OC-12GD - brak obrazu.
Pierwsze co w niej znalazłem to uszkodzony kontroler pamięci zasilania VRAM UP1666Q oraz rezystor R510. Elementy wymieniłem, po tej operacji rezystancja na linii zasilania 5V (Cewka L1) wynosiła 30Ω.
Wykonałem próbę zwarciową (1V 1A), elementem powodującym zwarcie okazał się U515 (GS7132UD), który też wymieniłem.
Obecnie rezystancja na L1 wynosi 2.2kΩ.

Po uruchomieniu karty wszystkie sekcje zasilania startują, poza zasilaniem GPU (NVVDD = 0V), wiec pierwsze co sprawdziłem to zasilanie drivera UP9512R (U518), na pinie 12 = 0V.

Moje pytanie brzmi: skąd jest ten układ zasilany, skoro R771, R782, R777, R783 mam nieobsadzone?
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Re: RTX3060 GV-N3600 GAMING OC-12GD - brak zasilania GPU, skąd jest zasilany UP9512R?

by Google Adsense [BOT] • 4 April 2025, 10:03

#2 Re: RTX3060 GV-N3600 GAMING OC-12GD - brak zasilania GPU, skąd jest zasilany UP9512R?  [SOLVED] 

by matic • 4 April 2025, 11:34
poster wrote:Moje pytanie brzmi: skąd jest ten układ zasilany, skoro R771, R782, R777, R783 mam nieobsadzone?
Hello!
Pin 12 of U518 is also connected to the resistors R2, R893, R916. How about these ones? At least one of them should be present on the board.
Are the resistors R4, R884 present on the board?

#3 Re: RTX3060 GV-N3600 GAMING OC-12GD - brak zasilania GPU, skąd jest zasilany UP9512R?

by poster • 4 April 2025, 12:15
Thank You for reply.
R2, R893, R916 - not present
R884 - not present
R4 - present, damaged. Found short 0.7Ohm @ NVVDD_OP4
Short gone after removig U518.

Just realized U518 = NCP81610 in my card, no UP9512R as schematic/bv says. I guess i cant i replace it with UP9512R? It seems pinout is different
I have to order NCP81610 to proceed

Re: RTX3060 GV-N3600 GAMING OC-12GD - brak zasilania GPU, skąd jest zasilany UP9512R?

by Google Adsense [BOT] • 4 April 2025, 12:15
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