Edited Main Post With My Second Post. (Its more descriptive):
It sounds like a police car's siren going off, but coming from the motherboard.
The PC can be off for 10 hours at a crack, turned on and once a certain game is running, it will make that sound. Other games however, do not make the motherboard make that sound.
Oblivion: Doesn't Beep. EVER.
Company of Heroes: Beeps Continuously
Company of Heroes Map Editor (Real Time In-game editing): Beeps Continuously
System Format (Not Quick Format): Beeps Continuously throughout Windows installation, however once desktop loaded it went away.
Rainbow 6 Vegas: Doesn't Beep. EVER.
So if it was overheating, it should be making that noise all of the time. However, it doesn't. Sometimes when the computer is loading an application, it will make a single beep or two (Basically the same alarm, the only difference being sometimes that alarm doesn't keep beeping, as soon as the app loads, it goes away).
Motherboard: Abit AN8 Ultra.
RAM: Corsair 1GB Ram (2 Years old).
It sounds like a police car's siren going off, but coming from the motherboard.
The PC can be off for 10 hours at a crack, turned on and once a certain game is running, it will make that sound. Other games however, do not make the motherboard make that sound.
Oblivion: Doesn't Beep. EVER.
Company of Heroes: Beeps Continuously
Company of Heroes Map Editor (Real Time In-game editing): Beeps Continuously
System Format (Not Quick Format): Beeps Continuously throughout Windows installation, however once desktop loaded it went away.
Rainbow 6 Vegas: Doesn't Beep. EVER.
So if it was overheating, it should be making that noise all of the time. However, it doesn't. Sometimes when the computer is loading an application, it will make a single beep or two (Basically the same alarm, the only difference being sometimes that alarm doesn't keep beeping, as soon as the app loads, it goes away).
Motherboard: Abit AN8 Ultra.
RAM: Corsair 1GB Ram (2 Years old).