12100 SW Tualatin Rd Tualatin Oregon 97062 (503) 747-2261 [email protected]www.VersaLogic.com VL-EPM-16 Tomcat CMOS Setup Reference This article provides reference information and tips for setting CMOS Setup parameters on the VL-EPM-16 (Tomcat). Start CMOS Setup by pressing Delete during the early boot cycle. The Main menu appears first. You can scroll to other menus using the left and right arrow keys. The CMOS Setup menus are: Main Menu Advanced Menu o Board Configuration o CPU Configuration o IDE Configuration IDE Master/Slave Configurations o Remote Access Configuration o USB Configuration USB Mass Storage Device Configuration PCI/PnP Menu o IRQ Trigger Type Settings Boot Menu o Boot Settings Configuration Security Menu Chipset Menu o NorthBridge Chipset Configuration o SouthBridge Chipset Configuration ISA Configuration Serial/Parallel Port Configuration WatchDog Configuration Exit Menu The basic idea when using CMOS Setup is to navigate to the menus containing fields you want to review, and change those fields as desired. When your settings are complete, navigate to the Exit menu, and select “Save Changes and Exit.” This causes the settings to be stored in nonvolatile memory in the system, and the system will reboot so that POST can configure itself with the new settings. After rebooting it may be desirable to reenter the Setup system as necessary to adjust settings as necessary. Once the system boots, CMOS Setup cannot be entered; this is because the memory used by the BIOS configuration manager is deallocated by the system BIOS, so that it can be used by the OS when it boots. To reenter CMOS Setup after boot, simply reset the system or power off and power back on. Note: The configurations and factory defaults described here are for VL-EPM-16 BIOS version 1.00. Main Menu The Main menu displays BIOS, processor, and memory information and edits the system date and time. A record of system faults and MTBF is also displayed. + ------------------------- ------------------------- + ---------------------- + | System Overview | | | ------------------------- ------------------------- | | | AMIBIOS | | | Version :08.00.14 | | | Build Date:10/22/09 | |
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VL-EPM-16 Tomcat CMOS Setup Reference - VersaLogic EPM-16 CMOS Setup Referenc… · VL-EPM-16 Tomcat CMOS Setup Reference ... The Main menu displays BIOS, processor, and memory information
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This article provides reference information and tips for setting CMOS Setup parameters on the VL-EPM-16 (Tomcat). Start CMOS Setup by pressing Delete during the early boot cycle. The Main menu appears first. You can scroll to other menus using the left and right arrow keys. The CMOS Setup menus are:
Main Menu Advanced Menu
o Board Configuration o CPU Configuration o IDE Configuration
IDE Master/Slave Configurations o Remote Access Configuration o USB Configuration
USB Mass Storage Device Configuration PCI/PnP Menu
o IRQ Trigger Type Settings Boot Menu
o Boot Settings Configuration Security Menu Chipset Menu
o NorthBridge Chipset Configuration o SouthBridge Chipset Configuration
ISA Configuration Serial/Parallel Port Configuration WatchDog Configuration
Exit Menu
The basic idea when using CMOS Setup is to navigate to the menus containing fields you want to review, and change those fields as desired. When your settings are complete, navigate to the Exit menu, and select “Save Changes and Exit.” This causes the settings to be stored in nonvolatile memory in the system, and the system will reboot so that POST can configure itself with the new settings. After rebooting it may be desirable to reenter the Setup system as necessary to adjust settings as necessary.
Once the system boots, CMOS Setup cannot be entered; this is because the memory used by the BIOS configuration manager is deallocated by the system BIOS, so that it can be used by the OS when it boots. To reenter CMOS Setup after boot, simply reset the system or power off and power back on.
Note: The configurations and factory defaults described here are for VL-EPM-16 BIOS version 1.00.
Main Menu The Main menu displays BIOS, processor, and memory information and edits the system date and time. A record of system faults and MTBF is also displayed.
Sets the write characteristics or disables L2 cache.
Fetch Line Size
Values: 4 DWORD, 8 DWORD
Sets the fetch line size.
CPU Speed Setting By
Values: Divide By 1, 2, 3, 4, 5, 8, 16, 32
Sets the CPU speed setting divisor. Setting the divisor to 1 selects full-speed.
IDE Configuration The IDE Configuration menu sets IDE parameters and provides links to the IDE Master and Slave Configuration sub-menus. The Secondary IDE Master and Slave sub-menus have no function because the EPM-16 has only one IDE controller.
Setting this parameter to enabled prevents the IDE hard disk from being written to. To operate the hard disk normally, set this parameter to Enabled.
IDE Detect Time Out (Sec)
Values: 0, 5, 10, 15, 20, 25, 30, 35
Sets the maximum time in seconds that the BIOS will try to auto-detect the connection device. A value of 0 is best if the on-board IDE controller is attached to specific drives. Most IDE drives can be detected in 5 seconds or less.
ATA(PI) 80Pin Cable Detection
Values: Host & Device, Host, Device
Selects the method used to auto-detect the type of IDE cable attached. Host & Device uses both the IDE controller and IDE device, Host uses only the IDE controller, and Device uses only the IDE device.
Hard Disk Delay
Values: Disabled, 1 Second, 2 Second, 4 Second, 8 Second
Sets the amount of time the BIOS will wait for a device to become ready. In most cases, a delay of 2 seconds is adequate.
OnBoard IDE Operate Mode
Values: Legacy Mode, Native Mode
Sets the I/O and memory address of the IDE controller. Legacy Mode uses standard IDE controller addresses. Native Mode uses 8212 controller addresses.
Primary IDE Pin Select
Values: Parallel IDE, SD Card
This parameter should be set to Parallel IDE.
Standard IDE Compatible
Values: Enabled, Disabled
This function is reserved for Linux. Select Enabled when operating the EPM-16 under Linux. When operating under Windows, the parameter has no function and either setting is allowed.
IDE Master/Slave Configurations The IDE Master/Slave menus configure IDE parameters.
Not Installed: Prevents the BIOS from searching for an IDE disk drive.
Auto: Allows the BIOS to auto-detect the type of IDE device attached. This setting should be used if a hard disk drive is attached.
CD/DVD: Specifies that a CD or DVD drive is attached. The BIOS will not attempt to search for other types of IDE devices.
ARMD: Specifies that an ATAPI removable media device is attached.
LBA/Large Mode
Values: Disabled, Auto
Disables the Logical Block Address (LBA)/Large mode or enables it if the device supports this mode and was not previously formatted with LBA mode disabled.
Block (Multi-Sector Transfer)
Values: Disabled, Auto
Enables or disables multi-sector data transfers. When set to Auto, data transfers will occur in multiple sectors at a time if the device supports such transfers. When set to Disabled, data transfers will occur one sector at a time.
Selects the IDE programmable I/O (PIO) mode. Setting the PIO mode programs the timing cycle between the IDE controller and the drives connected to it. When set to Auto, the PIO mode is detected automatically. Use this setting if the device PIO mode is unknown. The data transfer rates of each mode is shown below.
PIO Mode 0: 3.3 MB/sec.
PIO Mode 1: 5.2 MB/sec.
PIO Mode 2: 8.3 MB/sec.
PIO Mode 3: 11.1 MB/sec.
PIO Mode 4: 16.6 MB/sec. This setting generally works well with all hard disks manufactured after 1999.
DMA Mode
Values: Auto
The DMA mode is set automatically.
S.M.A.R.T.
Values: Auto, Disabled, Enabled
Enables or disables Smart Monitoring, Analysis, and Reporting Technology, which allows the BIOS to report system information over a network.
32Bit Data Transfer
Values: Enabled, Disabled
Enables or disables 32-bit hard disk data transfers. Normal PATA hard disk transfers are 16-bit, so this parameter should be set to Disabled.
Remote Access Configuration The Remote Access menu configures the console redirection parameters.
Sets the serial port speed and protocol for console redirection.
Flow Control
Values: None, Hardware, Software
Sets the flow control to hardware, software, or none.
Redirection After BIOS POST
Values: Disabled, Boot Loader, Always
Determines when console redirection is enabled. The Disabled setting turns off redirection after POST. The Boot Loader setting enables redirection during POST and boot loader. The Always setting enables redirection after POST and boot loader are complete.
Sets the delay between display memory and console redirection refresh.
USB Configuration The USB menu configures the USB controller. If a USB mass storage device, such as a USB CD-ROM or flash drive, etc., is attached to the system, this menu includes a link to the USB Mass Storage Device Configuration sub-menu.
Enables or disables BIOS support of USB keyboard and mouse. The Disable setting prevents the use of any USB device in DOS or during boot up. Enable allows the use of USB devices in DOS or during boot up. Auto detects USB keyboards or mice and, if they are found, allows them to be used in DOS or during boot up.
Sets the USB controller to full speed or high speed mode.
BIOS EHCI Hand-Off
Values: Enabled, Disabled
Enables or disables support for operating system without an EHCI hand-off (USB "hot swap") feature. This parameter should be set to Enabled.
USB Beep Message
Values: Enabled, Disabled
Enables or disables the USB beep function. When Enabled a beep sounds for each USB device detected (for example, if a USB keyboard and mouse are connected, two beeps will sound). An external speaker must be connected to the board for the beeps to be audible.
USB Mass Storage Device Configuration This menu is available only if a USB mass storage device is attached to the system. The menu sets parameters for the device.
Allows or disallows the OS to modify settings for Plug & Play (PnP) operation. The Yes option allows the OS to change interrupt, I/O, and DMA settings. Use this option if the OS is PnP aware. The No option is for OSes that do not meet the PnP specification.
PCI Latency Timer
Values: 32, 64, 96, 128, 160, 192, 224, 248
Sets the PCI device latency in the number of PCI clocks for all PCI devices on the bus. This determines how long a device can control the bus.
Allocate IRQ to PCI VGA
Values: Yes, No
Allows or restricts the system from providing an IRQ for the VGA device.
Palette Snooping
Values: Enabled, Disabled
Enables or disables palette snooping. This should be set to Disabled unless a VGA card attached to the system requires palette snooping. The Enabled option informs PCI devices that an ISA-based graphics device is installed.
PCI IDE BusMaster
Values: Enabled, Disabled
Enables or disables the IDE controller as a PCI bus master.
OffBoard PCI/ISA IDE Card
Values: Auto, PCI Slot1 through PCI Slot 6
Specifies the location of an additional off-board IDE controller or allows the system to detect the location automatically.
IRQx
Values: Available, Reserved
Reserves an IRQ for a legacy ISA device or makes it available for PCI/PnP use.
DMA Channel x
Values: Available, Reserved
Reserves a DMA channel for a legacy ISA device or makes it available for PCI/PnP use.
Note: When the trigger type setting is enabled for a particlar IRQ, the Trigger Type option appears below the IRQ.
IRQx
Values: Enabled, Disabled
Enables or disables IRQ trigger type settings. When Enabled, the Trigger Type parameter appears.
Trigger Type
Values: Level, Edge
This parameter appears only when the trigger type parameter is set to enabled for an IRQ. When set to Level, the interrupt is level triggered, active high. When set to Edge, the interrupt is edge triggered, low-to-high.
Boot Menu The Boot menu displays boot devices installed in the system and provides a link to a sub-menu for configuring boot settings.
Allows or prevents the system from trying other boot devices connected to the system. If set to Yes, the system will try booting from devices that are not listed (or are disabled) in the Boot Settings configuration screen. If set to No, the system will not attempt to boot from any unlisted device.
Boot Settings Configuration The Boot Settings menu configures boot behavior parameters.
Selecting either of these options opens the Enter New Password dialogue box.
Boot Sector Virus Protection
Values: Enabled, Disabled
Enables or disables write access to the boot sector. When Enabled, the BIOS displays a warning when any program (such as a virus) issues a disk format command or attempts to write to the boot sector of a hard disk drive. The following message appears when a write to the boot sector is attempted:
Boot Sector Write! Possible VIRUS: Continue (Y/N)? _ You might have to type N several times to prevent a boot sector write. The following message appears when an attempt is made to format any cylinder, head, or sector od any hard disk drive via the BIOS INT13 hard disk drive service: Format!!! Possible VIRUS: Continue (Y/N)? _
Chipset Menu This menu provides links to the NorthBridge and SouthBridge Configuration sub-menus.
Determines whether memory timing is set by the BIOS or manually. If set to Manual, the CAS Latency, tWR, tRFC, tRP, and tRCD parameters are displayed for setting. (See the Wikipedia article on memory timings.)
SouthBridge Chipset Configuration This menu sets SouthBridge chipset parameters and branches to several sub-menus.
Load Optimal Defaults: Resets CMOS to factory defaults, even if there are custom defaults available. All changes made to CMOS settings during the current and previous CMOS Setup sessions will revert.
Load Failsafe Defaults: Resets CMOS to factory defaults.
Save Custom Defaults: Saves current CMOS settings to custom defaults.
Load Custom Defaults: Resets CMOS to custom defaults.