Moreover glitches like CRC5 (as found in the kernel log) generally stage to a nasty ASIC. I recently diagnosed this in my posting on What to do with 0 asics located and CRC5 errors. When the manufacturer officially releases it, they're going to indicate their guarantee period. Most Bitmain miners https://antminer-l7-price87642.slypage.com/31728103/order-bitmain-antminer-l7-safely