Castle

A couple of weeks ago, an older p4 socket 478 hp desktop suddenly crashed so after changing a new hdd it booted without errors. A day immediaterly after, the desktop cannot be powered up so I thought the power supply was spoilt and I gave up on fixing it.
Until today, when I tried to power up the computer, there is power!! Wow!! How strange?
But wtf, the hdd brings on a very heavy irritating clark clark sound continuosly and refuses to boot with the OS already installed. The hdd is new and so I swopped to the older hdd it does not have any sound but the OS loading kept crashing. Now I dunno wat to do.
How should I proceed from here? Could the motherboard be faulty? But I doubt so because the bios can be accessed and all the fans are spinning. Anyone can shed some light into this old donjey p4 system?
The specs is p4 1.8ghz, 256 ddr1 pc100, vga 32mb onboard. Old hdd is 40gb but the new hdd is 80gb. psu is 200W.

reddevil6

i am not sure but i think u need 250W for onboard video cards.
is the CPU OCed? it could be a unstable OC.
try an reset the BIOS to defaults an see what happens.

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UriA702

try another power supply. the issue could be the motherboard as well. Try resetting cmos

There should be a jumper near the battery that needs to be taken off and put one more pin to the right/left(only 3 pins) for about 60 seconds and then moved back.

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2048Megabytes

I second UriA702's opinion. Try another power supply and see if that does the trick.

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