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68 CR12/CT12, VR12/VP12 UEFI Firmware User's Guide
Publication No. UGCR12V051E Rev. A.0
5.3.2
Display Logic
The optimal default is
Enabled
.
WARNING
This feature disables the video output circuitry of the GPU. Therefore it is highly recommended NOT to use
this feature; otherwise no screen message will be visible after. If by coincidence the output is disabled the
only way to overcome this is to erase the SBC configuration by removing the battery. CMOS RAM and
NVRAM (Flash) will lose its content including the password when the battery is drained.
5.3.3
CLKRUN# Logic
The optimal default is
Enabled
.
This is a factory setting. Please do not change.
NOTE
Feature will set invisible with the next release of UEFI firmware.
5.3.4
High Precision Timer
The optimal default is
Enabled
.
The High Precision Event Timer (HPET) is a hardware timer developed jointly by
Intel and Microsoft since 2005. Previously only the older timing facilities such as the
programmable interval timer (PIT) or the real‐time clock could be used for timing
purposes.
The user should turn this feature on for modern operating systems like Windows
Vista, Windows 2008, Windows 7 and Linux operating systems 2.6 kernel and above
can take advantage of this timer.
5.3.5
Boot Time With HPET Timer
The optimal default is
Disabled
.
Enabling this feature allow HPET get used during early boot and programmable
interval timer PIT will be not used in early boot.
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