Elitegroup A990FXM-A Deluxe (V1.0) - Manual (Page 46)

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Using BIOS
Auto Detect DIMM/PCI Clk (Enabled)
When this item is enabled, BIOS will disable the clock signal of free DIMM/PCI slots.
CPU/HT Reference Clock (MHz) (200)
Use this item to set the CPU/HT Reference Clock through clock gen.
CPU Unlock (Disabled)
This item allows you to enable or disable CPU unlock function. It works depends on
your CPU.
HT control
Current Width Up: 16 bit
Upstream Link Width [Auto]
Current Width Down: 16 bit
Downstream Link Width [Auto]
Current IO HT Freq: 2600MHz
IO HT Frequency [Auto]
Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc.
Version 2.10.1208. Copyright (C) 2010 American Megatrends, Inc.
Main Advanced Chipset M.I.B X Boot Security Save & Exit
+/- : Change Opt.
Enter : Select
F1:General Help
:Select Screen
:Select Item
F2:Previous Value
F3:Optimized Defaults
F4:Save & Exit
ESC:Exit
Set Upstream Link Width.
Current Width Up (16 bit)
This item shows the current Upstream Link Width.
Current Width Down (16 bit)
This item shows the current Downstream Link Width.
Upstream Link Width (Auto)
This item allows you to set Upstream Link Width.
Downstream Link Width (Auto)
This item allows you to set Downstream Link Width.
Current IO HT Freq (2600MHz)
This item shows the current IO HT Frequency.
IO HT Frequency (Auto)
This item allows you to set IO HT Frequency.
HT Control
Scroll to this item and press <Enter> to view the following screen:
Press <Esc> to return to the M.I.B X Menu page.