After 2 months of mining the most time the L3 worked without faults, just one time it dropped 1 hasboard but after the reboot it came back for regular hashing. Few days ago the miner crashed and when I checked the miner status I noticed that the board2 loss 4 asic chips, and I was surprised that this was not hashboard3 that always generated a lot of HW errors. At this time I can't get 4 asic chip to come back up even after the reboot. I contacted Bitmain and they confirmed that the repair cost is around 35 USD for each board without warranty, plus shipping cost. I'm going to create a repair ticket and ship the hashboard back. I just hope to get help from Deep In The Mines to create a return label with their discounted shipping rate.
I noticed that the hardware defects are starting to appear after two months of use and the example is my L3 and two L3 from Longsnow.
Anyone minnig more than 2 months without serious issue?
This is exactly why I posted my saga on the L3's here. My L3's ran fine for a while also. But just like the S9/R4/T9's they almost always seem to start off working just fine. Then the problems start. So that is why I hoped to share this wisdom with people here about the L3's and to be aware that the same issues that Bitmain has with their other miners are here on the L3 also. They just don't make a reliable miner.
However warning people isn't enough because everyone thinks that "accidents" and "problems" happen to other people. So we continue to buy this junk thinking it won't happen to us. The cost of shipping unless you get lucky to have someone help you like "@Deep In The Mines" to let you print a shipping label with him will cost you a fortune even if the board repair cost is reasonable.
Next problem is that when you ship back to them it goes to a Hong Kong address. From there once they get it they told me it can take 5-10 days for it to be shipped to China and processed through customs. Then the repair can take place. No estimate on that time required. Or the shipment time to get it back. So at this point I think I am probably being very conservative when I say it will likely be at LEAST 1 month before this is all done and the board is back. Sadly I have 1 hash board out for repair and one controller/io board out for repair. Just waiting for the next board to bite the dust while I am waiting on the stuff I have already shipped to get shuffled around, fixed, and sent back.
So I know I am probably wasting time sharing this experience with people, but hopefully it will help a few people who will take heed. Until these miners are sold in other markets and you have someone like "BitmainWarranty" doing repairs locally the time to get a board repaired is very long and the cost is high. Even with local repair the cost is still high. So take it for what it is worth.
I won't be in a hurry to buy more L3's and certainly NOT the L3+.