Integrated Peripherals - CHAINTECH 7VJS User Manual

Auto Configuration is enabled, you must set the DRAM timing function to 60ns or 70ns,
depending on the type of DRAM you install.
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. It is advised to leave this setting. Caching the system
BIOS results in better performance than shadowing the system BIOS.
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.
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
VIA OnChip IDE Device:
Press [Enter] to enter the sub-menu, which contains the following items for advanced
control:
1. OnChip IDE Channel 0/1
You can set this to disable the OnChip IDE controller if you are going to add a higher
performance IDE board
2. IDE Prefetch Mode
Enabling this function will enhance the system efficiency.
3. 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
Chapter 3 Chapter 3
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:
This section provides information on setting Super I/O 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:
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provide successively increased performance. In Auto mode, the system automatically
determines the best mode for each device.
4. 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.
VIA OnChip PCI Device
1. VIA AC97 Audio
This feature allows you to enable/disable the onboard AC97 audio function.
2. VIA OnChip LAN
This feature allows you to enable/disable the onboard LAN function.
3. Onboard CMedia Audio
Available options: [4 Channels]/[6 Channels]
4. Onboard Lan Boot ROM
Decide whether too invoke the boot ROM of the onboard LAN chip.
Super IO Device
1. Onboard FDC Controller
Select Enabled if your system has a floppy disk controller (FDC) installed on the
system board and you wish to use it. If you install an add-in FDC or the system has no
floppy drive, select Disabled in this field.
2. Onboard Serial Port 1/2
Select an address and corresponding interrupt for the first and second serial
ports. Available options are [3F8/IRQ4], [2E8/IRQ3], [3E8/IRQ4],
[2F8/IRQ3], [Disabled], and [Auto].
3. UART Mode Select
This function allows you to select an operating mode for the second serial port.
(Normal RS-232C serial port / IRDA / SCR / ASKIR 0.57-MB/sec infrared port)
4. UR2 Duplex Mode
Available options: [Half] and [Full].
5. Onboard Parallel Port
Select a logical LPT port address and corresponding interrupt for the physical parallel
port.
6. Parallel Port Mode
Select an operating mode for the onboard parallel (printer) port. Select SPP unless you
are certain your hardware and software support one of the other available modes.
7. ECP Mode Use DMA
This item automatically specifies a DMA channel 1 or 3 for the parallel port when it is
set to [EPP] or [ECP+EPP] mode.
8. Game Port Address
This item disables or assigns the address of the Game port. Available options are