my pc takes 3 to 4 attempts to boot
what could be the problemWhy don't you provide us with some more information?All fans are working
power reaches everywhere
cd rom drive,mouse,keyboard,..

replaced RAM because of this problem
it's a new ram now


but still the problem is there
it takes 3 to 4 attempts to boot

and there are automatic restarts as well when the comp is booted and working
sometimes the comp freezes

sometimes i get blue SCREEN stop message asking to try changing video adapter or CHK bios update from vendorIncompatible RAM...Need...more...info...gasp

Operating system / antivirus & antispyware protection / service packs installed / when did it start happening / did it ever work RIGHT / installed any new software?

Alan <>< How old is the power supply?well

when it works,it works fine
apart from the automatic restarts in between
once in an hour or so

power supply is 4 years old

it is windows xp OS SP2

no new software or hardware installed

apart from RAM stick which was to supposed to solve this problem
the prev ram stick had gone bad according to the hardware techniciani give you 90 % that your RAM doesn't want to work... That could be because you have different brand (like kingston and buffalo), ram capacity (512 and 256) or one of them is broken... Sorry I didn't ask - how many RAM cards do you have plugged in ?I have just 1 Ram stick

But i had similar problem with the old ram stick which has gone bad
that old ram stick worked fine for 4 years or so
and i haven't made any hardware or software changes
the problem started all of a suddenI would change out the power supply if you have DETERMINED that RAM is not the culprit