Hello i have an r9 390 that has all voltages ok. It is detected in windows if i use second card. I write last bios with atiflash.
Maybe ram voltage not ok? 1.500V only if fan connected(my first amd gpu open). should be 1.6V?
Any ideea?
Thank you.

Anyone? Thanks

Check picture for all videoout - DP, HDMI, DVI. Check resistance on all signal lines. Check voltage 5v for DVI, HDMI and 3,3v for DP.

i checked all signal lines and are ok
Check voltage 5v for DVI, HDMI= ok
but it stop in B2 if the card is alone in the system ;
for memory 1.500V is ok?
it has a strange pwm also for memory:

it is ok.
if card stop on b2 - it is memory error (for AMD videocards). test and change fail memory bank.

any way to test memory for amd? is my first amd :)

read this viewtopic.php?f=48&t=91866&p=683466&hilit=%2A%D1%81%D0%BA%D1%80%D0%B8%D0%BF%D1%82%2A#p683466

Hello i tried that script.
Lspci give b0000000 and c0000000 which is ok to test? For b000000 i get 1.000... and i have 16 modules of ram so 1 is damaged?
If i test c0000000 i get 4. 000... so 16/4 4 modules with errors.






If i add it as second gpu driver says ok but no image if i put monitor.

How do i find the reset resistors for memory with no schematic?

I found 2x2 memory not ok with the script. I used a 4.7ohm resistor to short to ground the resistor where was 1V measured. Like 30ma were taken 1-2 seconds. Now i need to find same memory types the replace all 4. I tried reflow on them with no success. I used as command "python3. /direct-mem-test.py b0000000 1" ; 1mb was enough and i had 16 ic memory chips so 65535kb on each. If chip was disabled the number of errors increased by 65xxx for good memory and almost at all for bad ones.