Quote from: Legend394020 on July 20, 2021, 12:14:01 AM

Hello everyone, been a very stressful day kindly bear with me.

Bought a used DR5 from my Chinese supplier at a hefty premium. Before you call me an idiot I’ve purchased before from this supplier multiple times and she always sent me working products.

I noticed that on board 1 and 2 two heat sinks were dislocated perhaps damaged in shipment.
The last board works but the other two read me “0 ASICS found”. Now I’m a beginner but even if there was a dead asic like wouldn’t the other ones function?

It would also be good to mention that while it is rated for 220-240v I tested it on 120v. I wasn’t going to keep it running there but my electrician hasn’t installed 240v yet at my house and I wanted to make sure it was running first. I also tried swapping cables and all that good stuff but only the 3rd chain seemed to be working so it wasn’t a main control board issue.

Any thoughts?

This is my take:

a)Purchasing an ASIC miner is always somewhat of a gamble.

b) Your first very big mistake is not waiting for YOUR electrician to complete the job. The second piece of this mistake is not being patient with anything having do with the installation/operation of an ASIC miner. Until it's reliably running, any mistake on your part blows your schedule and you budget. The key deliverable from the electrician to you is a 220V AC line with the correct plug AND he/she demonstrates to you the plug is properly grounded and has the correct polarity. If possible I would check the power supply DC output.

c) Seeing the two loose heatsinks was another schedule pause. If it was me, I would shake the miner and listen to the rattle of these loose heatsinks. If you hear the heatsink rattle then it's ALL STOP. Call up/email the supplier with a picture of the loose heatsinks and a video of the rattling noise. There is no way the seller should wiggle out of this. It needs to be shipped back and the problem fixed.