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Hello You think voltage is good? Thank you very much for your times

1 Gnd ok 2 Fb 0.8v 3 Vout 0.8v 4 Vout 1.78v 5 vin 3.3v 6 vcntl 5v 7 pok 3.1v 8 en 3.3v

i have 10 k ohm

I think have problem this i not ground

I have one in rear it is bios And two on front I have dual bios in this card it is possible 2 chip same référence is bios 1 front and bios 2 rear? ref: pm25ld010 Ce1445 Hr1n5cg Other chip is ref: apl5930 Vr396

i have receive my microscope today but i don't know where i do search

you can send to RazorWind he is very helpful

For who?

I have test regulator and 2 fuse and it s ok. Where is 3.3v rail and 7v rail? Thank you

Is good thank you

Thank you i check to night and reply. What is this in my picture 1? Can i test that? The big transistor in second picture i have test and in my memory i have 12v and 3v i check to night.

I have test and have 12v in vcc (15) Vccp (1) Boot (4) No other

oh ok but it s write just 5230 rca to chip. i test

have you hint for find datasheet ? this ref not recognised by google

i can t test it pins are to little ref is : 5230rca

oh many pins

Can you help for found contrôler?

Ok but i have nothing to all 4 4c10n

I have nothing with all pin

It is possible if control ic dead have 2 mosfet ok and 2 no Voltage?

This?

i don t know if i use good frequency multimeter i never use it i do check ground to fets for frequency?

i have nothing. i have another cards for parts . you think i do change two mosfet 4c10n with 0v?

sorry i have frequency mode . how can i test? thank you for your times

No microwave🤣 i have bga

I have not fréquence to my multimeter

vcore 0.994v vaux 1.005v vmem 0v 77ohm

Sorry. Ok All Vcore to ground 2.0 ohm Vmem to ground 120 ohm Vaux to ground 57.3 ohm All fuse 0.1 ohm Thank you for reply

Hello all i have problème with my r9 390 sapphire nitro. Can you help me? I have Black screen and no boot. I have tested all Voltage and i have no Voltage to vmem. And two capacitor. After other test i connect power supply 2 mosfet 4c10n have 12v And 2 mosfet 4c10n 0v fuse 0v capacitor 0v see...

Hello and good job. Can you help me? i have problème with my r9 390 sapphire nitro. Thank you I have Black screen and no boot. I have tested all V and i have no V to vmem. And two capacitor. Thank you With other test i have connect to power and i have 2 mosfet 4c10n with 12v and 2 other with 0v...