If the motherboard is a ATX style and you have had the PC unplugged from the mains supply or have switched the switch off on the power supply at the rear of the PC, then this will do cause it to fail to boot. Leave it connected, plugged into the mains with the switch socket switched on and also the power supply switched on at the back. Leave it like this for an hour or so and try again.
I have come across before and the above seems to cure the problem. You can invoke this fault as well by switching off and unplugging completely, then removing an internal item and replacing with a new unit, say a new hard drive or similar. When the system switches on it checks the attached equipment for integrity and if does not match a stored snapshot is has to re-register the equipment which takes time. XP also checks to see if anything has been changed since the last time it was run and if it finds enough changes it may refuse to run as well and invite you to re-register with Microsoft as it will think it has installed on a another PC. Another possible reason is that ATX power supplies leak a small amount of power to keep items like the Cmos powered to retain the special settings and enable the PC to wake up and switch on when receiving external signal from a network, modem or indeed its own internal clock sending a "switch ON" command at a pre determined time etc. This leakage also keeps the capacitors on the motherboard charged up. Now if you have completely isolated the PC for a month the system will have been starved of this leakage and so the Cmos battery could have been drained flat and the capacitors like wise. Good Luck On 20/08/06, J S M <[EMAIL PROTECTED]> wrote: > > --- In > [email protected]<A-1-Computer_Tech%40yahoogroups.com>, > "stars9fan120" > <[EMAIL PROTECTED]> wrote: > > > > I hope someone can help me. I haven't touched my computer in a month > > and today when I hooked it up, it wouldn't boot. When I turned it on > > all my lights and fans inside my computer turned on but that was it. > > My computer and my CD-RW would have a solid busy light on. What does > > that mean? Is my computer dead? BTW: this computer was built. > > > > Their can be few things. > 1st Make sure u unplug all ubs,perilla,or serial ports then try to boot. > 2nd turn on the computer while its running unpluged it from the back. > and then plug it back in and see if it works i know both of these may > sound weard but they work!! > -whenever i had my usb lexmark printer hookup to my computer i never > get passed bios screen. and 2nd option it dose fix my ati radon 9250 > card graphic problem 8-). > if both of these dont work then most likely its your power supply or > motherboard. > Good Luck!! > > > [Non-text portions of this message have been removed] If you have any questions or problems with any aspect of this site, please feel free to contact me directly [EMAIL PROTECTED] Please do not post personal issues directly to the group. To unsubscribe from this list, send an email to [EMAIL PROTECTED] Thank you for using A-1 Computer Tech Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/A-1-Computer_Tech/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
