xp won't bootup

Just installed a new harddrive on my computer, i am not sure exactly what type of computer it is as it was rebuilt by a friend before I bought it from him, but when I start windows I gt the Azlle systemax bios v 1.05, I am assumming this is the type of motherboard I have.

anyway, I bought a new harddrive and installed windows xp home edition ( Cd was bought recently and only installed and activated on the same computer I am having trouble with now. it is not a pirated copy)

I know the old harddrive was bad because i took the computer to best buy and they ran a program on it and sd that it was a bad harddrive. So I bought a new harddrive. anyway i gt home install xp with no problem, the computer starts up and finishes the installation. everything was working fine, other then installing a few simple hide and seek games from cd there is nothing on the harddrive other then the windows files. I played these games for several hours last nite without any problem. Before I went to bed I shut down my computer as I normally do, and today I turn it on and It keeps rebooting itself before I gt to the windows logo screen. I try to enter the start up screen and I choose safemode i gt then I gt the screen of the os choice which is xp. I click enter but, nothing happens, after a little while the screen goes black and restarts itself all over again. Showing the systemax logo screen. No matter what choice I choose in the startup screen the outcome is always the same.

I went into my bios and loaded the default settings for the bios and still no luck.

I tried making a bootup disc from another computer that also has windows xp home but it dosen't recognize that( I also changed bootup options in bios so that drive A is first)

I can gt it to boot to my cdrom using my windows xp disc but it trys to reinstall windows. i choose the r for repair, but I am not sure as to what to do next. The onloy option is to do a reformat and that is a pain, i want to leave that as last resort.

I have a floppy drive (drive A) in my computer, I was thinking that maybe I couldn't boot from it because it was bad or something, so
I have a floppy that is usb, I unpluged the main floppy from my computer and tried to boot from the usb one (Drive B) but nothing, all i gt is a error message telling me that the floppy failed to load hit f1 or delete for setup. In bios it shows both floppy as A and B. so how do i gt thses floppy to reverse their postions? Making the floppy usb drive as my main floppy? I even tried disabling the floppy a but didnt help.

Also I have no idea if this has anything to do with why im not booting up but I noticed in the bios under boot sequence I have an option to turn of a guardian bios???? It is set to enable, I'm afraid to disble it as i am not sure what that is, I don't want to goof anything up so that I cannot gt back into my bios.



any ideas????

 

This reboot cycle can be caused by a weak or faulty power supply unit, or even a virus, or from a loose connection or component inside your PC, such as a RAM memory module, video card, etc. http://support.microsoft.com/default.aspx?scid=kb;en-us;320299 , and here too; http://support.microsoft.com/default.aspx?scid=kb;en-us;315341 , and look at this site also; http://www.theeldergeek.com/repairing_windows_xp.htm