pc was fine one night when i shut down, the following mourning dead. in the evening i took the side of to have a look for anything ovios, unplugged some sockets,vidio card,ram and reseated and she booted up. i then spent all evening on the net, next mourning the same thing, no beep,no boot. and i allso cleared the cmos, still dead. don't know where to go from hear. xp pro/sp 2 120gb hdd plextor dvd-r mats---a dvd-rom Abit NF7s V2.0 Mobo, xp2500 mobile @ 200x12, 1X512 crucial Pc3200, Radeon 7500 128mb, PA9C-42CU cooper heatsink

It would help if we knew which part it was that allowed it to boot again. Do all of the fans come on? Check the power supply one as well. Also try only booting with the minimum amount of hardware. This includes disconnecting the hard drive and optical drives as well as floppy drive. Check for any loose wires or wires that look unreliable i.e. missing sleeving or corroded connections. Matt www.bbcomputing.co.uk matt@bbcomputing.co.uk

dissconned rom,dvd-rw drive and hdd. all fans spin. xp pro/sp 2 120gb hdd plextor dvd-r mats---a dvd-rom Abit NF7s V2.0 Mobo, xp2500 mobile @ 200x12, 1X512 crucial Pc3200, Radeon 7500 128mb, PA9C-42CU cooper heatsink

If you cannot get the Single BEEP when you turn on the ATX On|Off switch on the PSU and no fans are seen/heard, any of the following can be defective/damaged: PSU CPU Motherboard At this stage try to disconnect the Power supply and Data cables of HDD/FDD/CDD leaving RAM and Video. This is to rule out CPU and MoBo from the list by trying to elicit a Beep code or "No system Disk Error" on screen If no beep or no error message , but fans are seen spinning all 3 (PSU,CPU,MoBO) are suspects. Try a Known Good PSU and if that works you have a Defective PSU. If that fails you have major issues. Further testing depends upon availability of suitable known good MoBo to test CPU and make the differential diagnosis. M

Yep sounds like the only way to do it now is to try replacement parts or get some advice on repairs from a local techie shop. Matt www.bbcomputing.co.uk matt@bbcomputing.co.uk

I would try to run without optical drives first(cd and dvd drives). I have seen cd drives gone bad lately prevent any signs of bootup and no reaction to power button, and this is in his description.