How to insert a second hard disk sata on my pc

[musaj]

wen i put a second hard disk sata 160 GB 3.0 Gb/s my pc shut down and make a alarm ppiipp piiip ppiipp just if i take of a second hardisk i can start it pleasee help me.My pc is (hp compaq dc7600 3.4procesor 80 gb hard disk) sata

 

[aford10]

Try connecting the drive while the PC is off.