Dear all, need help from you guys. Recently I bought a 2 TB WD hdd.

After a few weeks of using it, my PC became unstable. It will suddenly restart itself and then once it starts my Windows 7 x64 will boot then goes straight to sleep mode.

This has happened twice and I think it has crashed 2 HDDs so far. I need to know if the following configuration to support the power requirements ...

My current PSU - Coolermaster Extreme Power 450W

Mobo is Gigabyte P45 UD3L.

1. CPU - Intel Quad Q6600 G0 stepping
2. RAM - 4 x 2 GB DDR2 1066 Mhz Kingston HyperX
3. 2 x 5400 RPM 500 GB HDD
4. 1 x 2 TB 7200 Western D
5. Graphic card - low end Nvidia 7600
6. 1 x DVD-RW
7. USB devices - 1 wired mouse, 1 wireless keyboard
8. Built-in sound card

Please let me know if the above configuration is alright or i need to buy a new PSU with higher capacity.

Thanks and regards

Hi, appreciate if anyone can advise