Boot problem

[FJC148]

After trying to change CPU's on my PC I had a pretty hard time getting off the heatsink and fan. However, after I had managed it and changed the CPU my PC would not boot up properly (it also would'nt boot with the old CPU in either). The symptoms are:

It turns on ok
All the fans start turning
There is activity in the hard drives

However the monitor does not come on

I tried a different (pretty old)Graphics Card in case it was problem, but that brought no joy.

Also it does'nt turn off or reset (the only way to turn off is by pulling the lead out of the back), or read a floppy disk, so this leads me to think it may not be the Graphics card.

The monitor works ok with my other system so its probably not that to). Plus the heatsink/fan is well up to the job (plus i tried a different one).

I've checked that all the leads are in the right place, unplugged the power for a few minutes, but still no luck

Does anyone know what may be causing this?

Perhaps both CPU's are damaged, (the CPU I was trying to put in was pretty old, and I had never tried it before), the motherboard, or the ram?

Any suggestions much appreciated

Abit Kt7a Mobo
Athlon Duron 900mhz (Newer 1.3 Athlon)
384mb Ram
Geforce 3 TI200
Asaka Silver mountain Heatsink/Fan
Maxtor DiamonMax 60gb IDE

 

[ebcd]

Lets start from the basic, get the motherboard put on the CPU and RAM and the Video card. Connect the power supply c what happens.

 

[G0AOZ]

Did you clean off old heatsink compound and re-apply new when you replaced the CPU? What about any beeps from the system speaker? No beeps whatsoever points to a processor problem...

ROGER - G0AOZ.

 

[BadBigBen]

Hola,

let me put my two cents worth in here...

after swapping the CPUs did you clear the CMOS?

Check all of your connectors, ie. CPU FAN plug-in, IDE, CMOS jumper, USB plug-ins, etc...

Ben