I had a bad hd and replaced it 2 weeks ago bad sectors.

now it has stopped starting up

1 it chimes

2 i get a gray screen no pin wheel

3 nothing happens.

i have tried booting off tech tools cd but no luck. same as above

this issue happened 2 times and the machine sat for some time and started up

now i get as described above

i am thinking

cpu over heat.

bad cpu

bad memory

bad mobo

would the chime eliminate any of the previous hard ware?

michael