| Those are the only 2 connectors that get connected to your drive, check the 2 connectors are correct, try a different 4 pin power connector from your psu and with the ide connector make sure the red stripe wire is closest to the power connecter if you disconnected it when changing you psu, also check the ide connector to the motherboard has not become dislodged, when booting check it is detected in the bios
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My System: - Processor(s): Intel 2.4Ghz core 2 quad | Motherboard: ACER EG31M | RAM Memory: 2 GIG DDR2 667 | Graphics Card(s): NVIDIA GeForce 8400GS | Sound Card: Realtek High Definition Onboard | Hard Drive(s): 500gb/250gb/250gb/160gb | Optical Drive(s): DVD RW + DVD RW | Case / PSU: Unbranded Case and Psu @ 500 watt | Cooling: STOCK | Network / Internet: Realtek PCI-E gigabite NIC | Monitor(s): 19" LCD and 15 Inch LCD | Operating System(s): Windows 7 Ultimate 64bit | |