Quote Originally Posted by flyingimam
u must check all connections inside the case if u have the experience to do so, it could be a lose connection

OR it can be other and more serious matters like an overheated cpu or ram or even heat damage on MB/bios

i doubt a video card damage can result in such a thing,

but all in all since u say it DOES go to your windows login page i suspect a failed /failing fan on cpu... most systems have an automatic setup that tells them to restart/shut off pc @ a certain temperature on cpu and in such case u should take it for repairs or if u r familiar and experienced in handling components inside of your pc, u may analyze your cpu and its fan. same thing can happen with video card chip and/or bios on certain mobos


for a very slight chance it could be a virus as well, with information u provided and with me sitting far away from your pc i cant really establish a cause but tell u what i know could have caused this to best of my knowledge

* none of this info is guaranteed, act @ your own risk- this only comes from me being a savvy pc user since age 8 and f-ing around with different pcs all this time *
Good info, doubt it's a CPU overheating problem, it will usually go to a screen with an error for that, if the fans are still turning on, then it's even more highly doubtful, unless of course the fan over the CPU is not working at all. Dust usually is a major issue at times, also a virus could be a problem, but unless he gets an error code, or something along those lines, their is really nothing we can do from our end. Give more details, i.e., Brand, cpu type (dual core), age of pc, desktop, laptop, windows, linux, video card you are using, etc .. Can u hear the hard drive spinning when you start it up?