If you remember, users are excited with Phenom II X3 710 or Phenom II 550BE as such processors have hidden cores that can be enabled by ACC feature which is supported on the SB710 or SB750 south bridges. Unfortunately, this won’t work with AMD 890GX as it is now paired with SB850 south bridge since the ACC feature is no longer available.

ASRock seems to have found a way to enable the hidden cores without ACC, they call it UCC (Unlock CPU Core). Not only 890GX board, ASRock also implemented it on entry level board NVIDIA N68 boards.

Below is a video which demonstrates how it is done using the ASRock

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5 thoughts on “ASRock UCC feature continues to unlock hidden cores on AMD Phenom II processors”
  1. Can i unlock AMD Phenom II X4 960T Black Edition on ASRock N68-GS3-UCC?

  2. can AM2+ put on ASRock 890GX Extreme3, cause 890 chipset just for AM3
    i saw CPUZ about UCC there is Phenom II X3 720 with socket AM2+, anybody can help ?

  3. Hi. Thank you for the video. I enjoyed it.

    How does UCC affect the actual voltage of the processor? If the core is disabled under a stock voltage, what happens when an X2 or X3 becomes an X4?

    Does the processor upscale the VCORE itself or is it up to the user to adjust the Vcore to create a stable system?

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