Asus M4A89GTD PRO Series - Internal Graphics Mode; GFX Engine Clock Override

ASUS M4A89GTD PRO Series 3-21
Chapter 3
3.5.22 Internal Graphics Mode [UMA+SIDEPORT]
Allows you to select the Internal Graphics Mode.
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UMA Frame Buffer Size [Auto]
This item appears only when you set the Internal Graphics Mode item to [UMA] or
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SIDEPORT Clock Speed [DDR3-1333MHz]
This item appears only when you set the Internal Graphics Mode item to [SIDEPORT]
or [UMA+SIDEPORT]. Be cautious when setting the SIDEPORT clock speed. Improper
overclock setting may cause the system unstable or hardware damage.
3.5.23 GFX Engine Clock Override [Disabled]
Allows you to enable or disable the GFX Engine Clock Override function.
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GFX Engine Clock [500]
This item appears only when you set the GFX Engine Clock Override item to [Enabled] and
allows you to set the GFX Engine Clock. Use the <+> and <-> keys to adjust the value, or key
in the desired value using the numeric keypad and press the <Enter> key.