Hello everyone. I am sorry for writing in english as I dont know russian. I find this forum very helpful in repairing.
I am new into repairing GPUs. I have Sapphire Pulse RX 550 sealed card from a shopkeeper. He said that the gpu never show display from the first day it was opened from box for a client. It is detected in device manager with ERROR CODE 43. If i install it as PRIMARY Display, it is stuck on post code B2. When I run TSERVER on it, it hangs. All voltages are present on gpu. 1.35V is present for memory. Resistance of memories (ELPIDA) is 50-60 Ohms. I have tried to flash bios but that did not help. I dont know what else should I check. Some help from professional people here will be great. Thanks !

Have you checked with different versions of tserver? Maybe for some other rx5xx card?

how is the bios pulse?

Hi . No i did not try with any other version of TSERVER. I have done from the tserver provided in IMAGE with MATS and TSERVER and WINDOWS included.




I have tried 2 different bios but still same B2 Error. Gpu was sealed and opened by me and looked totally clean from inside except for rubbish paste . Should i reflow gpu or reball vrams ?

That should be your last resort... I advise you to try different tserver tests... Maybe for rx570 or 580 to see if you get different results.

Thanks. I will look into it and update results here.

Tried with different versions of tserver. Tserver hangs :( . NO LUCK

Have you checked basics? Pciex lines caps and pex reset?

Yes unfortunately no luck.