next few things on my list are fan over RAM and 2.4V and swapped northbridge heatsink. NB heatsink on there now is very hot to the touch, to the point where I'd burn myself after an extensive period of time. RAM at 2.1V is only to the touch though and wouldn't burn me.

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system: Intel Core 2 Duo e6400 @ 3.6GHz; 4*1GB RAM(micron D9GCT) @ 450mhz(DDR2-900) 4-4-3-8; Enermax Liberty 400AWT PSU; nvidia GeForce 8800GTS 640mb (660mhz core; 2120mhz mem)
OBAMA and BIDEN - 'we fight for you, blah blah we fight for you', theres only one man in this election that has fought for you, ONLY ONE and its not Obama.