Slave drive is not being detect

[Lynklee09]

My thermaltake 850 watts is down and so i decided to put in a corsair cx750m, since then my slave drive is not running or being detected in bios nor in disk management, i check all the wires and they seem to be working. Can anyone tell me if it just my power supply? Or my slave drive, i just bought a brand new seaguar sshd 1tb to replace my old 500gb thinking that was the problem but it still dont run nor being detected.

My cpu spec is
Asrock z77 extreme4
Evga 760gtx
Crucial 4gb rams(2)
H100i with 2 120mm fans
3 120mm fans built in case

I dont think my pc will use more then 750w.

 

[Geef]

Changing the power supply from 850 to 750 should not cause problems with your build. Try switching to a different power connector, one that Was plugged into something that worked fine like your other hard drive. Then check BIOS to see if either drives are listed.

 

[Lynklee09]

Changing the power supply from 850 to 750 should not cause problems with your build. Try switching to a different power connector, one that Was plugged into something that worked fine like your other hard drive. Then check BIOS to see if either drives are listed.

Yes i try that already but it still wont show up in bios. the only thing i change was the power supply. It"ll be sad if that the case now that i cant return due to 15 day return from best buy