No Hard Disk Detected then blurry screen on Asus P8P67

Valerie makumire

Honorable
Jun 15, 2013
2
0
10,510
I have just built my computer.
Components
Asus P8P67 Pro Rev.3 Motherboard
Radeon HD 5670
Pentium G630
OCZ StealthXtreme 500w
Corsair XMS3 8gb ram (2x4gb) in dual channel (in the blue slots)
Seagate Barracuda 7200rpm 3Gb/s hard drive


I have installed the hard drive in 1 of the light blue sata ports not the dark (sometimes called Navy) blue sata ports. It is currently on a test bench and on first boot I get:
Adapter 1 Disk Information: AHCI Mode
No hard disk is detected!

Then after that comes up on screen , everything is just fuzzy like this image: http://fc00.deviantart.net/fs24/f/2007/360/c/9/Fuzzy_TV_Screen_by_candracar272.jpg

Additionally, the computer does not just turn off .After that it is constantly on until I turn it off. However, I do seem to have a few power supply problems.These only occur a few times. For example, the power supply randomly makes this sizzling sound when I turn it on from the switch on the power supply and the board does not turn on. Also, the power supply sometimes powers the motherboard for like a second then and then the motherboard powers off as if the power supply is not providing power to it anymore. But this only happens randomly and is probably caused by me doing something stupid.
Anyway, can people give me any suggestions to solve my problems?
Thanks.