My Dell Dimension E521 PC running XP, won't start properly?

[BobTheGoldfish]

I've got an old Dell E521 desktop pc running Windows XP. I can boot it up fine but when it gets to the screen with (Start Windows normally) the timer counts down and then it goes back to the loading screen and loops like that? Note: I cannot press enter on run normally as I have no keyboard at the moment.

Also I am a bit of a noob when it comes to the complicated stuff so.....

Thanks

 

[Tmagic650]

Probably needs a new motherboard, or the trash can

 

[TitoPuente]

can you open it in safe mode at all?