MSI RX480M2 MS-7093 User Manual page 44

BIOS Setup
UMA Frame Buffer Size
Frame Buffer is the video memory that stores data for video display (frame). This field
is used to determine the memory size for Frame Buffer. Larger frame buffer size
increases video performance.
AGP Aperture Size
This setting controls just how much system RAM can be allocated to AGP for video
purposes. The aperture is a portion of the PCI memory address range dedicated to
graphics memory address space. Host cycles that hit the aperture range are for-
warded to the AGP without any translation. The option allows the selection of an
aperture size of [32MB], [64MB], [128MB], [256MB], [512MB], [1GB], [2GB] and [None].
GFX Clock M ode
This setting controls the GFX clock mode. Setting options: [Sync], [Async].
Video Display Devices
Use the field to select the type of device you want to use as the display(s) of the
system. Settings: [Auto], [CRT Only], [CLD Only], [DFP Only], [TV Only], [CRT Force,
Other Auto], [TV Force, Other Auto], [CRT Force, TV Force].
TV Standard
Select the TV standard which is used as the video signal format of your TV if you
have connected a TV to the system. Setting are: [NTSC], [PAL], [PAL-M], [PAL-60],
[NTSC-JAP], [PAL-CN], [PAL-N], [SCART_RGB].
M emory Hole
In order to improve performance, certain space in memory can be reserved for ISA
peripherals. This memory must be mapped into the memory space below 16MB. W hen
this area is reserved, it cannot be cached. Settings: [Disabled], [Enabled].
Video RAM Cacheable
Selecting Enabled allows caching of the video memory (RAM) at A0000h to AFFFFh,
resulting in better video performance. However, if any program writes to this memory
area, a memory access error may result. Setting options: [Disabled], [Enabled].
Auto Detect PCI Clk
This feature enables the BIOS to auto detect PCI device and set PCI slot clock.
Options are: [Enabled], [Disabled].
Spread Spectrum
W hen the motherboard's clock generator pulses, the extreme values (spikes) of the
pulses creates EMI (Electromagnetic Interference). The Spread Spectrum function
reduces the EMI generated by modulating the pulses so that the spikes of the pulses
are reduced to flatter curves. If you do not have any EMI problem, leave the setting at
[Disabled] for optimal system stability and performance. But if you are plagued by EMI,
select [Enabled] for EMI reduction. Remember to disable Spread Spectrum if you are
overclocking because even a slight jitter can introduce a temporary boost in clockspeed
which may just cause your overclocked processor to lock up. Available options:
[Enabled], [Disabled].
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