hardware test 4MOT/4/40000003:HDD-1291 not sure what to fix - iMac Intel 27" EMC 2309 and 2374 - iFixit
hardware test 4MOT/4/40000003:HDD-1291 not sure what to fix - iMac Intel 27" EMC 2309 and 2374 - iFixit
4MOT/4/40000003: HDD – 1231 | The Silicon Vault
iMac - fan noise after replacing HDD | MacRumors Forums
iMac - Extinction inopinée | Les forums de MacGeneration
My Mac is unable to shut down and is getting stuck on a black screen. After diagnostics I got a 4MOT error. A google search isn't helpful and the apple service was