Lesser cables will melt down and can ruin your miner not to mention your fuse box. The S4 also stays much cooler than the Antminer S2 did using a better fan and blade arrangement. Internal blade temps run between 45 to 49 degrees Celsius at an ambient temp of 39c.
The firmware driver issue limits which pools you can run on with optimal performance. This issue can cause some issues for those running on P2Pool especially. It is best to run it on BTCGuild right now until the issue is cleared up. The ease of updating the firmware though makes this issue easier to deal with when a fix is ready.
Simply download the new firmware and navigate to the update option in the control panel.
Bitcoin Mining Calculator and Profitability Calculator
Choose the new firmware and load. The update process is seamless and fast. Bitmain is replacing them even if they have not failed yet as a precaution. Dear customers, We are sorry to inform you that we do find a critical defect of power supply in the first batch and the first part of batch 2 Antminer S4 shipment, and have issued an official announcement on bitcointalk community regarding power supply replacement for these miners.
Please find details in the following link, https: But we do suggest you nip it in the bud and keep an eye on your miners which seems to be running well. Now please provide us with the Order Confirmation page from Bitmaintech. Please accept our sincere apology for the inconvenience. Bitmain worked hard to make sure this did not happen again. The LCD seems to be more robust than the S2 so far as well with no failure as happened with the Antminer S2 with days.
If you get one that uses a static IP address, it is usually Only a few from batch one were static. Alright guys, a little bit more on my Bitcoin miners.