I've been trying to get my dads computer working for almost 2 months now. The only reason that it isn't working is because the hard drives aren't detected I have bought like 5 hard drives and none of them are being detected I have also tried to plug the power cable into a different port on the PSU and also I have tried different SATA ports and I have also changed the data cable multiple different times. also to make sure that it wasn't the motherboard on the most recent hard drive I put it into my computer as a secondary and a primary and it still wasn't detected.
specs:
Motherboard: MSI Z97 PC Mate
CPU: i7- 4790k
GPU: 7770
Case: Corsair SPEC-01
PSU: CORSAIR RM750X
HDD: WD Blue 1TB 7200 RPM
OS: Windows 10 home
specs:
Motherboard: MSI Z97 PC Mate
CPU: i7- 4790k
GPU: 7770
Case: Corsair SPEC-01
PSU: CORSAIR RM750X
HDD: WD Blue 1TB 7200 RPM
OS: Windows 10 home