• Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

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Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

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  1. Topic title should contain: the device's manufacturer, full model and the brief description of problem.
  2. Topic message should contain: the PCB marking code (required in case of hardware repairs), an extended description of problem, things you have checked/replaced/measured, your conclusions and the question. If you are not able to find the PCB marking code, please read THIS TOPIC. If you still cannot locate the PCB markings, please upload a clean, both-side photos of the mainboard - it is required to remove any films, modules or brackets possibly covering these markings.
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#1 Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by Slezi • 3 December 2020, 12:42
Dzień dobry,

wpadła mi w ręce ostatnio RX Vega 56 GV-RXVEGA56GAMING, numer płyty: V17098, karta o nieznanej historii, po podłączeniu zasilania i PCI-E karta nie daje oznak życia, wentylatory nie działają, są niesprawne, jednak zasilanie wentylatorów działa, inne wentylatory podłączone pod kartę działają normalnie. Na podstawie filmu Foresta chyba udało mi się dopasować cewki która za co odpowiada, dzięki czemu mogę opublikować wyniki:

L1000/L1001 - ponad 2kΩ
Zasilanie GPU - L500-L511 ok. 0.4 Ω 0V
Zasilanie Pamięci - L700 ok 44Ω 1.2V
Zasilanie PCI Express - L300 - ok 20Ω 0.8V
Kontroler pamięci - L900 - 25Ω 0.9V
Zasilanie bios - L301 1.9kΩ 1.8V

Po podłączeniu z napięć wynika, nie ma napięcia na GPU, GPU jest zimne, innych ciepłych układów nie wyczułem. Gdzie szukać przyczyny?

Zdjęcia poglądowe (źródło: https://www.tomshardware.com/news/gigab ... 36177.html)

https://cdn.mos.cms.futurecdn.net/TeFkY ... tdrcvV.jpg

https://cdn.mos.cms.futurecdn.net/gALAJ ... zsrYtU.jpg



Pozdrawiam,
Slezi

Re: Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by Google Adsense [BOT] • 3 December 2020, 12:42

#2 Re: Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by matic • 3 December 2020, 13:43
Hello!

Please, post a clear picture with visible markings on chip U500.

#3 Re: Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by Slezi • 3 December 2020, 14:04
Hello, thanks for reply, here you are:
Image

#4 Re: Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by matic • 4 December 2020, 19:08
Please, also post a clear pictures with visible markings on chips U506 and U4505.

#5 Re: Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by Slezi • 5 December 2020, 15:27
Markings are very difficult to read from photos, so i put here markings:
U4505: UTC umtb(?) LM358G
U506: IR 3598 GQGTP

Image
Image

#6 Re: Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by matic • 5 December 2020, 15:50
Measure the voltage to ground on pin 11 of chip U504.

#7 Re: Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by Slezi • 8 December 2020, 18:11
Hi, it’s 5V

#8 Re: Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by matic • 9 December 2020, 13:45
Measure the voltages to ground on pins 1, 3, 4, 8, 9, 13 of chip U504.

#9 Re: Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by Slezi • 21 December 2020, 23:30
Hello,
sorry for delay, here’s results
1. 11.84V
3. 12.36V
4. 11.85V
8. 0.508V
9. 4.983V
13. 1.505V

#10 Re: Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by matic • 22 December 2020, 10:27
Do you have an oscilloscope?
If so, measure the voltages to ground on pins 8, 13 of chip U504 with oscilloscope.

#11 Re: Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by Slezi • 22 December 2020, 13:11
thanks for reply Matic! I don't have osciloscope, i have only mustool mt8206 multimeter with "pseudo" osciloscope it's only for general voltage changing in time, i will try later does it shows anything on thats PWMs. Is any another option to diagnose issue?

#12 Re: Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by Slezi • 5 February 2021, 12:23
Hello, i'm refreshing my thread, if the oscilloscope is the only way to diagnose it i will try with my toy oscilloscope in multimeter. What should i expect?

Re: Diagnoza karty graficznej RX Vega 56 GV-RXVEGA56GAMING V17098

by Google Adsense [BOT] • 5 February 2021, 12:23
 This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).
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