Pc won't start

emerald21

Hi my windows 7 pc won't start. I switch it on then nothing, no windows logo or anything. I ve tried pressing F8 but nothing happens. This has happened before but i be forgotten exactly what to do. any advice please.

googler

Does it make any physical noises - fans, disc drives, anything?

Do you get anything on screen at all?

Kendall80

Sounds very much like PSU failure. Cant be certain though without further details as asked for above.

aerostar

Try turning it off at the MAINS for 30 minutes then switch it back on and try again.

I have had PSUs/motherboard lock and not start after a brief blip on the mains, some PSUs whilst technically off are not totally off.

emerald21

googler wrote: »

Does it make any physical noises - fans, disc drives, anything?

Do you get anything on screen at all?

Hi there is one noise probably fans and the light is on so something's happening but that s it nothing else.

Cycrow

Does the screen ever come on, or is it always in standby mode ?

do you hear any beep ??
have you heard beeps in the past when it worked, specifically, did it used to beep once after turning it on ?
If not, then you may not have an internal speak attached, which can be useful for determining boot problems.

may sound silly, but first check to make sure the monitor is plugged into correctly.

it sounds like the power is coming on but the motherboard wont post

Kendall80

A dead BIOS battery maybe? - happened to me once. Is it an old computer?


A failure of one of the PSU rails, loose power connector - or a failed boot HDD are also possibilities.

elektra

How old is your monitor ? Have you got a spare monitor to try ? How long do you leave the PC on after the light has come on.

The reason I ask is that I had a monitor that took 10-15 mins to come on when started from cold. Once it was on it was fine all day.

emerald21

Hi thanks for your replies. No it's only about 2 to 3 years old . It's a Dell Inspiron and it's used with a tv as a monitor. Usually it doesn t take long at all to come on. There s power to it because it lights up but not much else happens and the screen stays black.

NiftyDigits

Have you tried it unplugged from the monitor? Service Tag on the underside?

emerald21

NiftyDigits wrote: »

Have you tried it unplugged from the monitor? Service Tag on the underside?

Hi nifty digits how are you ? Lol . No I ll go and try now