It is an M1610(AM1610-B1210A). Could not find the SKU, it is unique model as I can't find it anywhere.
The motherboard is something along the lines of this.
OG PSU: DELTA ELECTRONICS DPS-250AB-22E
NEW PSU(S): LITEON PS-5281-8VE
As for the pops, it was more of a muffled pop. The OG PSU is toast...
For reference, this Motherboard is being recovered from an old Acer Aspire. I disassembled the thing a while ago, pre pandemic, and decided why not reassemble it recently. I tried it with og config, no luck. PSU was making hum that meant it was receving power, but the computer wasn't turning on...
First, try your GPU in another system. If that doesn't work, buy a new monitor. If that doesn't help, your GPU is screwed.
Also, please get into more detail on the specs of your computer.