The Intel Pentium dual-core E2160 and E2140 will undergo the following changes for the L-2 to M-0 stepping conversion while the Core 2 Extreme QX6800 will undergo the following changes for the B-3 to G-0. The stepping change affects thermal specification mainly where power consumption drops and Tcase is increased.

The boxed Intel® Pentium® dual-core desktop processors E2160 and E2140 will
undergo the following changes for the L-2 to M-0 stepping conversion:

• New S-Spec and Material Master Number for the converting product
• CPUID will change from 6F2 to 6FD
• Extended HALT power specification will reduce from 12 Watts to 8 Watts
• Maximum allowed Case Temperature will increase from 61.4°C to 73.2°C
• Tcontrol offset will remain the same relative to 0 with the increase in
maximum allowed Case Temperature, which will help reduce acoustics
• Minor visible difference between the L-2 and M-0 packages but is
pin-compatible

The boxed Intel® Core™2 Extreme processor QX6800 will undergo the following
changes for the B-3 to G-0 processor stepping conversion:

• CPUID will change from 06F7 to 06FB
• New S-specs for converting product
• Packaging will move from a white box to standard Retail packaging
• Boxed processor will now include the Intel designed thermal solution
• Thermal specification has changed: Maximum allowed Case Temperature for the
Intel® Core™2 Extreme processor QX6800 on G-0 stepping has been increased by 9.7
oC. Tcontrol offset will remain same relative to 0 with increase in Maximum
allowed Case Temperature, which will help reduce acoustics.