Solder paste column M705, flux, board washing h2o with complete alcohol; board washing drinking water is used to wash up the solder residue right after repair; thermal gel (specification: Fujipoly SPG-30B) is accustomed to smear the floor of your chip soon after repair ；ball-planting steel mesh, solder absorption wire, https://antminers19prohashboard43297.59bloggers.com/31915535/the-2-minute-rule-for-antminer-s19-hashboard