I have an HX1000w power supply, and I am trying to add a third drive (SSD while the other two drives are HDDs). When I plug in the new SSD, the computer's power won't turn on. When I unplug the power to the SSD, the computer boots just fine.
I never got far enough to set it in the bios. The power won't turn on if the power supply is plugged into the ssd. The sata cable from the mobo to the ssd can remain plugged in. It's just the cord running the power from the ssd to the psu.