Quote Originally Posted by Cooperdale View Post
Oh, sorry, I simply mistyped. I meant 24x167Mhz=4008Ghz. That's why I think I should be able to keep the vcore I'm using for 25x160 (1.34375V). The cpu frequency is the same, but I have difficulties raising the BCLK from 160 to 167.
Up your volts by just one notch (approx. 0.006V) and then try. Your clocks are not exactly the same and yes, before you say "but it's only 8MHz" it is 8MHz, and with these chips it can make a world of difference. Also, different multiplier combinations with different BCLK values require different voltages. On the i7 920 and i7 940 higher BCLK with lower multiplier though usually means slightly lower voltages. Maybe it is not always the case though.

Anyway, just try upping it by one, max two notches. Also, you got the XE chip and it overclocks the best on the R2E board, not the P6T-Deluxe. Why did you go for that board with an XE chip?