What processors is the LGA 1156 connector used with.

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The socket 1156 processor list includes Lynnfied and Clarkdale processors.
for Lynnfield, the Core i5 700 series, the Core i7 800 series and the X3400 series and L3400 series Xeon processors.
For Clarkdale; the Core i3 500 series, the Core i5 600 series, the Pentium G6000 series and the Celeron G1000 series
I think that covers all of them