User manual ACER ALTOS 930

[. . . ] Chapter 2 BIOS Utility The BIOS Utility allows you to view your system's configuration settings. Most systems are already configured by the manufacturer or the dealer. There is no need to run Setup when starting the computer unless you get a Run Setup message. The Setup program loads configuration values into the battery-backed nonvolatile memory called CMOS RAM. [. . . ] The Base Address and IRQ items are configurable only if this parameter is enabled. BASE ADDRESS This function lets you set a logical base address for serial port 1. The options are: · · · · 3F8h 2F8h 3E8h 2E8h IRQ This function lets you assign an interrupt for serial port 1. The options are IRQ 3 and 4. BIOS Utility 2-23 Serial Port 2 This parameter allows you to enable or disable the serial port 2. The Base Address and IRQ items are configurable only if this parameter is enabled. BASE ADDRESS This function lets you set a logical base address for serial port 2. The options are: · · · · 3F8h 2F8h 3E8h 2E8h IRQ This function lets you assign an interrupt for serial port 2. If you assign 3F8h to serial port 1, you may only assign 2F8h or 2E8h to serial port 2. If you assign 2F8h to serial port 1, you may only assign 3F8h or 3E8h to serial port 2. 2-24 User's Guide Parallel Port This parameter allows you to enable or disable the parallel port. BASE ADDRESS This function lets you set a logical base address for the parallel port. The options are: · · · 3BCh 378h 278h IRQ This function lets you assign an interrupt for the parallel port. The Base Address and IRQ parameters are configurable only if Parallel Port is enabled. If you install an add-on card that has a parallel port whose address conflicts with the parallel port onboard, the system automatically disables the onboard functions. Check the parallel port address on the add-on card and change the address to one that does not conflict. BIOS Utility 2-25 OPERATION MODE This item allows you to set the operation mode of the parallel port. Table 21 lists the different operation modes. Table 2-1 Parallel Port Operation Mode Settings Setting Standard Parallel Port (SPP) Standard and Bidirectional Enhanced Parallel Port (EPP) Extended Capabilities Port (ECP) Function Allows normal speed one-way operation Allows normal speed operation in a two-way mode Allows bidirectional parallel port operation at maximum speed Allows parallel port to operate in bidirectional mode and at a speed higher than the maximum data transfer rate ECP DMA CHANNEL This item becomes active only if you select Extended Capabilities Port (ECP) as the operation mode. It allows you to assign DMA channel 1 or DMA channel 3 for the ECP parallel port function (as required in Windows 95). Onboard Floppy Disk Controller This parameter lets you enable or disable the onboard floppy disk controller. Onboard IDE Primary Channel This parameter lets you enable or disable the primary IDE channel. When enabled, it allows you access the devices connected to the primary channel. When disabled, it deactivates the connected devices. Onboard IDE Secondary Channel This parameter lets you enable or disable the secondary IDE channel. When enabled, it allows you access the devices connected to the primary channel. When disabled, it deactivates the connected devices. 2-26 User's Guide Onboard PS/2 Mouse (IRQ 12) This parameter enables or disables the onboard PS/2 mouse. When enabled, it allows you to use the onboard PS/2 mouse assigned with IRQ12. [. . . ] When set to Network, the password prompt does not appear; however, the keyboard is locked after system boot and remains locked until the correct password is entered. 2-42 User's Guide 2. 9 Date and Time The real-time clock keeps the system date and time. After setting the date and time, you do not need to enter them every time you turn on the system. As long as the internal battery remains good (approximately seven years) and connected, the clock continues to keep the date and time accurately even when the power is off. The following screen appears if you select Date and Time from the main menu. Date and Time Page 1/1 Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]