My Quadcore setup had started to give me bother over the past few weeks so I decided to find out what was wrong. When I overclocked the MB the system would not boot. To cut a very long story short I discovered that the external USB HDD that was plugged in was preventing the system from booting. I can attach it after the system boots but not before.
More importantly than that though is the new OC that I managed. Spurred on by fixing the problem I decided to have another go at overclocking the setup beyond my normal daily stable, as follows
The core system is
CPU : Intel Core2Quad Q6600 2.4Ghz, Standard Intel Heatsink 7 Fan
RAM : 4GB Corsair XMS3 DDR3 1333Mhz CAS9 (4 x 1GB Modules)
MB : Gigabyte GA-P35T-DQ6, F5 Bios
Standard Config, No OC
266Mhz x 9 multiplier = 2.4GHz
My Normal OC (Before today)
340Mhz x 8 Multiplier = 2.72GHz (8 multiplier was used to step down CPU but increase ram)
My New OC (Liking this a lot)
380MHz x 9 Multipler = 3.42GHz (plus ram is up again)
Temp : 42 Degrees