Good overclocking and voltages for Athlon II 645?

derblainkris

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Sep 18, 2011
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OS: Windows 7 Ultimate 64 bit
CPU: AMD Athlon II x4 645 @3.1GHz
CPU Cooler: Arctic Cooling Freezer Pro Rev.2
RAM: 8GB Corsair Vengeance 1600MHz
Motherboard: Asus M4A78LT-M
GPU: Asus EAH5670 1GB GDDR5
HDD/s: 500GB and 120GB
PSU: CIT 600UB 600 watt
Case: ocUK Achillies
I also have an exhaust fan.

ok here is the question, I want to get maximum performance out of this PC, I do editing and gaming on this i have just upgraded my ram and CPU cooler to the above. I am now planning on getting another 500GB HDD for RAID 0. would this make my boot up time and application start up time faster and what other benefits will I get, also what should I overclock my cpu to. I am currently on 3.39GHz and if I go any further my PC blue screens. also what voltages. I do not want to damage my PC I just want better performance, my idle temps atm are 32 - 33c, also AMD over drive is telling me that my memory speeds are 800, is that 1600MHz in dual mode or something? if there is anything else that you would recommend please let me know.

oh I forgot to ask, why does Can you run it say I have 753mb Video ram but CCC and WEI say I have 4GB? here are some link to the problem.
http://i.imgur.com/6x3IC.jpg - 4GB? what?
http://i.imgur.com/poZ77.jpg - 753mb? it's a 1GB 5670?