ok my issue lies deep within my computer.
to the point where i dont know
on to the point
i have a compaq presario sr5413wm and when plugged in the BACK greenlight stays on and when i press the power button it goes off. and nothing else happens, i check inside the case and find that the fan moves only about a half of an inch then stops. and the only way to get the light back on is to hold the power button.
i personally think that something is shorting it but i dont know enough about compaqs to do any thing nor am i too fimilliar  with new computers with SATA cables i think they are called.

all help appreciated!stonefoxnick,Welcome to the CH forums. Which fan is it that "moves 1/2 an inch then stops"? It sounds very much as if the fan of the Power Supply UNIT has failed. If you have access to another PSU of the same or higher rating then you could swap them out to see if the problem is solved. Do NOT attempt to open your current PSU.That can have dire consequences to your health.truenorthprocessor fan is the fan i was talking aboutOK.That is a fan that is readily replaceable by yourself if indeed that is what has failed. However i would want to try a replacement PSU 1st as it may be that the computer is shutting down as a result of a problem in the PSU (perhaps the fan there). I think it is premature to replace (permanently) anything until the source can be determined.I assume you never get to see anything from the computer on your monitor --no matter how brief? truenorthyou are correct about me not being able to see any result of any COMPONENT of the computer... and that is my problem
this computer is only like 4 or so months old i dont want to throw it away... i just got it today!

so what do i do?
i reset the cmos and pasword but is there a reset for the bios or how exactly do you just reset the whole thing?
If the computer is actually only 4 months old and not just something you purchased outside the normal retail market then it should still be well under warranty. If that is so that it still is under warranty i would not be trying to do anything as it could void your warranty. Warranty coverage if available should be your first option. However until you inform US of that here is something else you can try that will not void the warranty.With the computer unplugged from it's power source press in and hold the front on/off switch for about 20 seconds. Then release it and replug it in to the wall outlet and try to START it by pushing on the start button normally. truenorth
P.S. It could be the switch itself that has failed.
P.P.S. If there is an on/off toggle switch on the rear of the computer you could try turning that one off and then on again as well.