Hi,

I will share my experience with my order, sorry if you are tired of reading same things.....but I need to share my feelings, hope that someone will be able to help me one way or other.

I bought 32 units on black friday, only after one week mining, 6 PSU gone, and one PSU fan.

I had to wait 20+ days to get the replacement PSU, didn`t send the fan ( I replaced myself and is not the fan so they should send another PSU).....and no compensation for all inconvenients coming from almost waisted miners they sent to us.

I said during that RMA that I was afraid cause 7 PSU broken on first week is almost 21,8% of mining power off, a whole month.

As is obvious we had to pay shipping costs and clearance for the PSU, again.

In the last week, 12 PSU gone away, one per day.....only some days before Bitmain warranty expires......

So, from 32 miners: 19 PSU failed....around ~30% of the order in the first trhree months.....wow.
Sadly four miners have got issues with:
 
 • Faulty chips, I made my own troubleshooting changing cables to isolate the problem, but Bitmain did not send anything......
 • Ethernet connection.
 • Fans in no working conditions.
 • Some of the cables, arrived broken, burnt, and full of dust and other rubbish. What kind of new is that? I have a video of that.
 • One ChipBoard has its Screwed 12V+  and GND- connectors  lost, cause the first time we had to screw off the cables they just got broken, just like if I had used a Katana and we were cartoon.
 • One miner only hashes if the initial Bitmain pool data is on the configuration, cause when we change it, the miner gets lazy, no hashing.
 
 I really enjoyed this order, my first order to Bitmain.....till now they did not solve any of my issues quickly....Mining Asic manufacturers.....I was dreaming that someone could make  the difference, not only on the technology, they should take care of their Customer department and the relationships they handle. Customer is the same as Future, why to renounce such way.

Best Regards.

Hi,

I would like to know if someone that have bought S4 miners had same problems as me.

I bought on black friday 32 units, first week working 3 PSU got waisted, after that some more till 7.

I replaced through RMA 6 of the 7 units, one unit was a fan problem, Bitmain told me they would send me a fan, but they did not. No answer from them.

Right now I have got, again, 6 more units with faulty PSU.

Since the first day I had got 4 boards with broken chips, but I couldn't make Bitmain to replace them, I am still under 90 days of warranty.

I had to pay for all the PSU shipment as well.

I opened all units to check them and I could see units full of dust near to be waisted.


Anyone with same problems?