User manual AOPEN AP5VM-AMI

[. . . ] Chapter 3 AMI BIOS This chapter tells how to configure the system by setting the BIOS parameters. 3. 1 Entering the AMI BIOS Setup . The AMI BIOS Setup Main Menu To enter the AMI BIOS Setup, press appears as shown below. The AMI BIOS is in Windows form. To select among the Setup menu groups, use to highlight the selected group or simply click on the icon of the selected Setup menu. To select among the options, you can either use the arrow keys to move the highlight bar or simply click on the icon of the desired option. 3-1 AMI BIOS Utility After making your selection, press the selected menu option. [. . . ] The F000 and E000 addresses are exclusively shadowed for BIOS. 3-11 AMI BIOS Utility 3. 2. 3 Chipset Features Setup The Chipset Features Setup controls the board chipset settings. The Chipset Features Setup screen appears as follows. To scroll down the rest of the parameters, press highlight the desired parameter. . Use or to Memory Hole This option lets you assign the system memory area for ISA cards installed in your system to avoid memory conflicts. The available settings are 512~640K, 15~16M and Disabled. 3-12 AMI BIOS Utility DRAM Timing Setting The selections for this parameter are 60 ns, 70 ns, and Manual. If you select either 60 ns or 70 ns, the DRAM Timing subparameters become non-configurable since BIOS automatically sets the values. FAST MA TO RAS# DELAY This option specifies the wait state between the master address (MA) and row address strobe (RAS) signals. The selections are 1 clock and 2 clocks. EDO:SPM READ BURST TIMING This parameter adjusts the read wait state for Extended Data Out (EDO) DRAM and Standard Page Mode (SPM) DRAM. Every time the CPU reads the second-level cache miss, it reads four continuous memory cycles on four continues addresses from the EDO and SPM cache. The selections for this parameter are x444/X444, X333/X444, X222/X333, and X3222/X333. DRAM WRITE BURST TIMING This parameter adjusts the write wait state between the second-level and the DRAM cache. The second-level cache is processed through write-back method and each cache write process consists of four continuous cache write cycles. FAST RAS TO CAS DELAY This option specifies the wait state between the row address strobe (RAS) and column address strobe (CAS) signals. DRAM LEAD-OFF TIMING This option specifies the DRAM waiting time or the delay before data can be accessed. The selections are 11-7-3, 10-6-3, 11-7-4, and 10-6-4. 3-13 AMI BIOS Utility REFRESH RAS# ASSERTION This function controls the number of clocks required to assert RAS# for refresh cycles. FAST EDO PATH SELECT Enable this option to select a fast path for CPU to DRAM read cycles to minimize the lead-off time. SDRAM CAS# LATENCY This parameter controls the wait state between SDRAM row address strobe and SDRAM CAS signals. SDRAM RAS# TIMING This parameter controls the RAS# precharge, RAS# active-to-precharge time, and refresh-to-RAS# active signal delay. 8-bit I/O Recovery Time (Sysclk) This parameter allows you to set the response time of the 8-bit I/O devices connected to your system. The settings range from 1-8 SYSCLK and Disabled. 16-bit I/O Recovery Time (Sysclk) This parameter allows you to set the response time of the 16-bit I/O devices connected to your system. The settings range from 1-4 SYSCLK and Disabled. ISA Clock Divisor This option specifies the ISA bus clock divisor. The selections are Peer Concurrency Enable the parameter to allow the CPU to run secondary DRAM PCI master cycles to target PCI peer devices. The default setting is Disabled. 3-14 AMI BIOS Utility PCI 2. 1 Compliant This parameter lets you enable or disable the PIIX3 PCI register passive release functions. When enabled , the PIIX3 controls the USB operation to make sure that the system complies with the PCI Revision 2. 1 specification. [. . . ] The characters 3. 3. 2 User Password To set a User password, select following screen appears: User from the Security window. The For instructions on how to enter a password, follow the procedures listed in section 3. 3. 1. If you set a Supervisor and a User password, you can enter either of the two entries when prompted for a password before system boot or entering 3-25 AMI BIOS Utility Setup. 3. 3. 3 Anti-virus Select Anti-Virus from the Security window to display the following option box. The virus protection options allow you to enable or disable the virus protection feature. 3-26 AMI BIOS Utility 3. 4 Utility Setup The Utility window lets you change WinBIOS Setup colors and language setting. 3. 4. 1 Color Set Select Color Set from the Utility window to display the following screen. Use the arrow keys or simply click an option to select your desired background color for WinBIOS. 3. 4. 2 Language Select Language from the Utility window to display the following screen. The system language currently supported is only English. option is non-configurable and is for display only. Therefore, this 3-27 AMI BIOS Utility 3. 5 Default Setup The Default window allows you to select a group of settings for all WinBIOS Setup options. 3. 5. 1 Original When you select Original, a dialog box prompts you to restore the original BIOS default values. Select Yes to restore the original values. 3. 5. 2 Optimal When you select Optimal, a dialog box prompts you to load the values that will help your system deliver optimum performance. Select No to keep your current settings. 3-28 AMI BIOS Utility 3. 5. 3 Turbo When you select Turbo, a dialog box prompts you to load the Turbo values to further enhance system performance. [. . . ]