[blue_fire]

ok HT is hyper transport. It's what the Northbridge and the southbridge use to communicate. It can almost never go over a set amount (it's the exact same thing as the hyper transport for AMD) which is usually 1000mhz but in some cases(i believe for the striker) is as high as 2000mhz.

As there is no real way to check how high it is, more voltage is generally better. Leave the memory to auto, it wont help your overclock. The HT frequency usually matches the un pumped fsb, so 1066 fsb is 266 internal clock(which matches that ht frequency). The LDT frequency is the multiplier used for the ht. so 266x5 is the actual ht frequency. Lowering this down to 4 or 3 may help.

CPU VTT is the termination voltage (VolTage Termination), it reduces the number of false electrical signals by providing a form of "ground" to pull out these false currents.