PC Crashing randomly

[XiaoJuJu]

PC crashes randomly after some time. (usually left running)
Like everything just froze, Keyboard doesn't respond, Screen freezes in place, Speaker produces a continuous beep(??? Not too sure how to explain). 

• Windows 7 Home Premium 64Bit
• Intel i7-3770 CPU @ 3.40GHZ 8CPUs (Rarely OC-ed)
• 8GB RAM (1 Module only)
• AMD RADEON TWINFROZR II 7850
• SilverStone ST50F Strider Power Supply 500w
• ASUS B75M-A Motherboard

I'm Thinking maybe GPU Driver or overloaded RAM, Outdated BIOS?

[ItsHooky]

You could test if it is the ram modules by only booting the PC up with One Ram Module in each time, that way you can tell which one is the faulty one. Alternatively you take out your GPU and boot to see if it is the GPU itself. If it is your BIOS remove the little CMOS Battery for a couple of seconds (like 10) and press the power switch on your PC, then place it back in, (This will reset your BIOS) Also my PC wouldn't boot up and I tried both the RAM and CMOS Battery trick and it booted up, but I don't know which one solved it  

[XiaoJuJu]

You could test if it is the ram modules by only booting the PC up with One Ram Module in each time, that way you can tell which one is the faulty one. Alternatively you take out your GPU and boot to see if it is the GPU itself. If it is your BIOS remove the little CMOS Battery for a couple of seconds (like 10) and press the power switch on your PC, then place it back in, (This will reset your BIOS) Also my PC wouldn't boot up and I tried both the RAM and CMOS Battery trick and it booted up, but I don't know which one solved it

Mmm already resetted the BIOS once a few days back when i was changing to an after market cooler for my processor so i doubt it's cuz of that .__.

Also I'm running on a single Ram module at 8GB

[ItsHooky]

Mmm already resetted the BIOS once a few days back when i was changing to an after market cooler for my processor so i doubt it's cuz of that .__.

Also I'm running on a single Ram module at 8GB

Hmm try taking out the Graphics card and use the onboard Graphics, see if it might be your graphics card but I doubt it.