My computer has sent the blue screen with error 0x124 several times in the past. I have tried decreasing the clock frequency and changing the voltage but the error still happens. Most commonly when Im watching videos on youtube. Also my computer makes a distinct clicking sound at start up and shutdown every single time. What is going wrong :(

any help?

Could you list your computer specifications and also have you tried installing the latest drivers for your graphics card? That could be the problem.

Computer Specs: Mainboard : ASRock P67 Extreme4Chipset : Intel Sandy BridgeProcessor : Intel Core i5 2500K @ 3300MHz (Currently 4.0Ghz 1.345v)Physical Memory : 8192MB (2 x 4096 DDR3-SDRAM )Video Card : NVIDIA GeForce GTX 570Hard Disk : Western Digital WD5002AALX-00J37A0 ATA Device (500GB)DVD-Rom Drive : OPTIARC DVD-ROM DDU1681SMonitor Type : VE208 - 20 inchesNetwork Card : Realtek Semiconductor RTL8168/8111 PCIe Gigabit Ethernet AdapterOperating System : Windows 7 Ultimate Professional Media Center 6.01.7601 Service Pack 1 (64-bit)DirectX : Version 11.00

0x124 is a hardware error. Could be anything so you'll have to follow an elimination processClicking sounds usually come from the hard drives, first thing I would do is a complete backup, just in case