This is the so-called unlocked version of the Sempron (LE-) 140. You can transform the Sempron into the Athlon II X2 4400e with a modification. Standard there are a disabled and an enabled core. By enabling the advanced clock calibration feature via the BIOS (not available with all motherboards), you will get a second enabled core and managed to transform your standard CPU into the Athlon II X2 4400e. Besides, you will now have 2MB of shared L2 cache.
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