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7NJL1 User’s Guide
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(11) System BIOS Cacheable:
Enabling this function allows caching of the system BIOS ROM at
F0000h-FFFFFh, resulting in better system performance. However, if any
program writes to this memory area, a system error may result. Caching the
system BIOS results in better performance than shadowing the system BIOS.
(12) Video RAM Cacheable:
Enabling this function will allows caching of the video RAM, resulting in
better system performance. However, if any programs write to this memory
area, a system error may occur.
(13) Flash BIOS Protection:
The motherboard manufacturer developed BIOS protection technology that
protects the System BIOS from accidental corruption by unauthorized users or
computer viruses. When enabled, the BIOS data cannot be changed when
attempting to update BIOS with the FLASH utility. When disabled, the BIOS
data can be updated by using the FLASH utility.
3.4 Integrated Peripherals
This section provides information on setting peripheral devices. By choosing
the Integrated Peripherals option from the CMOS Setup Utility menu (Figure
3-1), the screen below is displayed. This sample screen contains the
manufacturer's default values for the motherboard.
Figure 3-5 Integrated Peripherals Screen
（
1
）
IDE Function Setup:
Press [
Enter
] to enter the sub-menu, which contains the following items for
advanced control:
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7NJL1 User’s Guide
On Chip IDE channel 0/1:
You can set this to disable the On Chip IDE controller if you are going to
add a higher performance IDE board.
IDE Primary/Secondary Master/Slave PIO:
The four IDE PIO (programmed Input/Output) fields let you set a PIO
mode (0-4) for each IDE device that the internal PCI IDE interface supports.
Modes 0 through 4 provide successively increased performance. In Auto
mode, the system automatically determines the best mode for each device.
IDE Primary/Secondary Master/Slave UDMA:
Ultra DMA implementation is possible only if your IDE device supports it
and your operating environment contains a DMA driver. If both your hard
drive and software support Ultra DMA, select [
Auto
] to enable BIOS
support.
IDE Pre-fetch Mode:
The onboard IDE drive interfaces support s prefetching, for faster drive
accesses. Set to [
Disabled
] if this primary or secondary
IDE HDD Block Mode:
Block mode is also called block transfer, multiple commands, or multiple
sector read/write. If your IDE hard drive supports block mode, select Enabled
to auto-detect the optimal number of block read/writes per sector the drive
can support.
（
2
）
Onboard Device:
This section provides information for setting onboard device. By choosing
the Integrated Peripherals option from the CMOS Setup Utility menu (Figure
3-5), the screen below is displayed. This sample screen contains the
manufacturer's default values for the motherboard.
Press [
Enter
] to enter the sub-menu, which contains the following items for
advanced control:
AC97 Audio:
This feature allows you to enable/disable the on-board AC97 audio
function.
MC97 Modem:
This item allows you to enable/disable the MCP chipset’s feature to support
MC97 Modem.
CMedia Audio:
This feature allows user to select 6 channels function, if that connect one
6ch Expansion kit
to motherboard.
MAC LAN (nVIDIA):
This item allows you to Auto / Disabled the onboard LAN function.
