Editing Pentium D (section)

===Presler XE===
The Pentium Extreme Edition based on the dual-core Pentium D branded Presler was introduced as the 955 model, at 3.46&nbsp;GHz, and used a 1066 [[Megatransfer|MT/s]] FSB compared to the 800 MT/s in the non-Extreme edition. A second version, the 965 at 3.73&nbsp;GHz followed in March 2006. Both CPUs also feature Hyper-Threading Technology and an unlocked multiplier. Overclockers have been able to overclock the core to 4.26&nbsp;GHz using air cooling simply by raising the unlocked CPU multiplier.

The Presler Extreme Edition was intended to only be combined with the Intel 975X chipset, it could also work with the 955X chipset, though this combination was not supported by Intel. The i975X featured the [[I/O Controller Hub#ICH7|ICH7R]] southbridge and supported all [[LGA 775]] (Socket T) Pentium 4, Pentium D, and Pentium Extreme Edition branded processors.