Computer beeping?

I bought a pc today and set it up and turned it on and it worked fine i then turned it off.

I turned it on a bit later and it started beeping contiuously and nothing came up on the screen to indicate what is was so i don't know what is wrong

Can anyone tell me what is wrong and how to fix it?

My basic computer specs are:
CPU: Intel Core 2 Duo E6600 (2.4Ghz/4MB/1066FSB/Dual Core)
Motherboard: Intel P965, ATX, FSB1066, PCIE16, DDR2, SATA2, RAID, GB LAN
Memory; 2GB Kit (2x1GB) PC5300 667mhz DDR2
Hard disk: 320GB SATAII/300 16MB Cache, 7200RPM, NCQ
Operationg system: Microsoft Windows Vista Home Premium 32bit OEM DVD

Just a constant BEEEP....BEEEP...BEEEP...? Longer and consistent? I've seen computers do this when they have a RAM issue(sometimes just removing and reseating it will help) Or sometimes it's processor related, like maybe a loose fan or something... It could be lots of things, thought. Somtimes you just have to tear the computer apart and start rebuilding and hope you find a problem

Yes its a constant beep, beep, beep? it may have been becasue i turned it off buy holding the button down instead of making it normally shutdown casue i pressed the button vista to shutdown and the screen turned off but my computer didn't seem to so thats why i turned it off in that way.

Hold down the power button until it turns off and try turning it back on. Next time use the start>shut down or make an icon on your desktop for a shutdown or restart button, if you want directions on how to do that id be glad to post em.

That's not the best way to shut a PC down, but I've shut my laptop down like that quite a few times in the last few weeks(I get frustrated and don't care to wait on it ) So far it's still worked just fine.

Hey fixed it.

just turned the switch at the back of the pc tower off then back on again and it worked - thank god i will never be turning my computer off that way gain

thxs for your help guys

My computer also beeps but it beeps at unexpected times... (Randomly) any ideas???

My bleeps out of the blue as well sometimes!