This topic has been moved to Mining Hardware.

To make a long story short, I've got this Dragon Miner A1. One of the modules says it hashes at 750gh, but in reality it just isn't working. So, I did some research and found out that one of the VRM chips is probably bad (If my theory is wrong please correct me) and needs replacing. So the module apart today and discovered 2 VRM chips, one is a 1.8V and the other is a 3.3V. They have writing on them and I searched it up and found some, but the last string of numbers is different on all of them. Does the last string of numbers matter? I am also not currently sure of the amperage on the original chips. So if anyone knows that info please share that with me.

The 1.8V one is as follows: AMS1117 1.8V H418KE
The 3.3V one is as follows: AMS1117 3.3V H421PE

If the last set of numbers matters could someone tell me what they mean?

Thanks,
dako44