PC doesn't start

[Andrea]

WXP SP2 uptodate.
Mboard AMD1700; DVDR/R Pioneer; DVDR/CDR Samsung. Printer HP5550. Camera
Logitech MSN; UPS Trust; Promise Ultra 133.
Since a while now, my PC would not start immediately. The MB turns on (led
on), the fans work( both for chipset and power supply unit) the Pioneer DVD
led turns on but not the Samsung CDR/R one nor the monitor.
I tried many things ( disconnected the monitor, disconnected one by one the
DVD and the CD R/R, the printer, the camera) cecked the connection to the
harddrives, changed the IDE connectors, changed the Power Supply Unit , with
no result. Suddenly, after many attemps, without a hint of what really made
the difference, the PC starts and everything works very well until the next
restart. Changed the MoBo battery with no results. Recentely, for two times
I was able to have the PC start disconnecting the monitor signal cable and
plugging it back after booting.
Any suggestions for troubleshooting?
Thanks in advance,
Andrea

 

[Guest]

Try another monitor and cable. Sounds like some physical break in the
connection. Is the power suppy for the system big enough?

 

[Andrea]

Thanks Mark,
I'll try and let the NG know ASAP. Yes, the PU gives 500 Watts.
Andrea

 

[Andrea]

Hi, Mark.
I changed the monitor with no results, made several other attempts with HD,
Floppy, CDR/R connections. I have the feeling now that only the PC front
switch.
I'll let the NG know.
Thanks again.
Andrea