Having a look around the bios i have found 3 settings i havn't seen before and wondered what they are and what they do. First one is hpet mode i have set it to 64 bit as i have vista 64 installed but don't know what it is or what it does. Other two are cpu and mch clock skew at the minute both on mine are set to 0 but are they important and what do they do. Sorry if these are noob questions but there are more options on this bios then i have ever had before and don't want to play with settings i am not familiar with 
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