This is a bit of an unusual request in that i have been asked to build a new pc for my dad to play chess on, he currenty uses the Rybka multicore engine on a Q6600 which works fine and uses all 4 core but he wants more processing power so i overclocked it a bit but he wants more..... 
As he "only" plays chess he has no need of a fancy graphics card so it has thrown me a bit as to what psu to use. I can't remember what psu i used in his Q6600 build but i think it was around 420 / 450w, will the same psu cope with an i7 build? Possibly with a mild overclock at a later date or should i be looking at 500-600w, bearing in mine it will only be running a 3450 graphics card.
TIA.
As he "only" plays chess he has no need of a fancy graphics card so it has thrown me a bit as to what psu to use. I can't remember what psu i used in his Q6600 build but i think it was around 420 / 450w, will the same psu cope with an i7 build? Possibly with a mild overclock at a later date or should i be looking at 500-600w, bearing in mine it will only be running a 3450 graphics card.
TIA.
