My computer starts to make weird noise

My computer is acting up.

[Rydar]

Please someone help me. I don't know where else to turn for help. My computer starts to make weird noise after im on the computer for about an hour. I think my computer is about to crash and Im scared.

Does anyone have any experiance or know whats going on when a computer starts to make horrible noises from the motor?

Please help me someone. Thinks in advance.

[lawman]

Check your fan(s). May just need a replacement.

[sovidiu]

This is only its way of making you realize "he" is up and *still* running after one hour of neglection. Just say "ok computer" and it will all go away. :)
Or just check the coolers, the motherboard or graphic accelarator might go too hot and your coolers don't have the needed power to keep them running at a decent Celsius scale. If it would have been something else, your CPU would have been toasted.
(Sorry for my bad English)

[Rydar]

Thinks guys. I opened up my coputer and took a look inside and yeah it was the fan making that horrible noise.

if it was a hard drive crash occuring my computer would have been fried by now.

You guys have helped me to save alot of time and money.