Display resolution, sound or startup disk issues, do a PRAM reset. SMC Reset. Apple Menu > Shut Down; Shift + Ctrl + Opt (left side) & Power button at ... ... <看更多>

A fresh OS install won't reset the hardware, SMC or PRAM. It might be well worth checking both those are correctly reset before going so far as a wipe ... ... <看更多>

重置S.M.C 可能修复一些不确定的错误行为，但不会对任何电源的损坏或者硬件的故障有任何帮助。 reset NVRAM. 现在的Mac 会在nonvolatile random access ... ... <看更多>