Is holding a motherboard mandatory to test gpu ?

Debidoobs

n00b
Joined
Nov 6, 2022
Messages
10
Hi guys,

im actually learning about diagnosing a faulty gpu and im making progress. Suspecting a GS7103 faulty on a RX580, no short on power stage. I only feed it with a psu lab from 8 pin connector but have no output on the gs7103. Do i need to power the 3.3v rail also ? Do i need to power the whole card both with motherboard and atx psu to target once for all the GS7103 ? Cheers
 
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