• Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

It is currently 14 December 2024, 11:55

 [SOLVED] Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

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#1 Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

by iT0mT0m • 30 November 2022, 19:36
Witam,
Dostałem ponownie tą samą kartę do diagnozy co z tematu: identyfikacja-elementow-gtx-970-jetstream-t63008.html. Nie pokazuje obrazu w komputerze. Po wstępnym sprawdzeniu przepaliło bezpiecznik za portem HDMI. Mam takie rezystancje na cewkach:
L4 - 96,1Ω
L6 - 96,1Ω
L15 - 5,5Ω
L12 - 5,5Ω
L10 - 5,5Ω
L9 - 5,5Ω

Co mogę sprawdzić jeszcze, aby namierzyć usterkę?

//edit
Proszę o przeniesienie do działu Naprawa desktopów. Nie spojrzałem dokładnie gdzie dodaje temat.

Re: Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

by Google Adsense [BOT] • 30 November 2022, 19:36

#2 Re: Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

by matic • 30 November 2022, 20:15
Hello!

Measure the resistance on two big ceramic capacitors near the DrMOS U15.

#3 Re: Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

by iT0mT0m • 30 November 2022, 20:36
matic wrote:Measure the resistance on two big ceramic capacitors near the DrMOS U15.

One side have 5,7Ω and the second side have 0,01Ω. Measure two ceramic capacitors.

#4 Re: Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

by matic • 30 November 2022, 20:47
iT0mT0m wrote:One side have 5,7Ω
Measure the resistance between the side with 5,7Ω and coil L9 (put one meter probe on the capacitor, the other on the coil).

#5 Re: Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

by iT0mT0m • 30 November 2022, 20:53
matic wrote:Measure the resistance between the side with 5,7Ω and coil L9 (put one meter probe on the capacitor, the other on the coil).

Only 0,02Ω

#6 Re: Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

by matic • 30 November 2022, 20:59
iT0mT0m wrote:
matic wrote:Measure the resistance between the side with 5,7Ω and coil L9 (put one meter probe on the capacitor, the other on the coil).
Only 0,02Ω
One of the DrMOS chips U15 or U16 is damaged.

Remove the coil L9 from the board and remeasure the resistances from the post #3.

#7 Re: Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

by iT0mT0m • 30 November 2022, 21:29
matic wrote:Remove the coil L9 from the board and remeasure the resistances from the post #3.


One side have 4,7Ω and the second side have 0,02Ω.

#8 Re: Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

by matic • 30 November 2022, 21:31
iT0mT0m wrote:
matic wrote:Remove the coil L9 from the board and remeasure the resistances from the post #3.
One side have 4,7Ω and the second side have 0,02Ω.
Also remove the coil L10 and remeasure the resistance.

#9 Re: Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

by iT0mT0m • 30 November 2022, 21:54
matic wrote:Also remove the coil L10 and remeasure the resistance.

One side have 6,62 kΩ and the second side have 0,01Ω.

#10 Re: Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze  [SOLVED] 

by matic • 30 November 2022, 21:58
iT0mT0m wrote:
matic wrote:Also remove the coil L10 and remeasure the resistance.
One side have 6,62 kΩ and the second side have 0,01Ω.
So the DrMOS chip U16 is damaged and needs to be replaced.

#11 Re: Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

by iT0mT0m • 30 November 2022, 23:22
DrMOS replaced, coils and fuse are soldered. GPU is working, picture are back. Very thanks for help.

Re: Palit Geforce GTX970 JetStream - nie uruchamia się w komputerze

by Google Adsense [BOT] • 30 November 2022, 23:22
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