User manual ACER ACERPOWER 6200

[. . . ] &KDSWHU BIOS Utility 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. This memory area is not part of the system RAM. If you repeatedly receive Run Setup messages, the battery may be bad. [. . . ] The external cache is incorporated in the CPU module. BIOS Utility 2-11 Cache Scheme This parameter sets the cache to Write-through or Write-back modes. Write-back updates the cache but not the memory when there is a write instruction. It updates the memory only when there is an inconsistency between the cache and the memory. Write-through updates both the cache and the memory whenever there is a write instruction. 2. 3. 3 ECC/Parity Mode Selection This parameter allows you to enable or disable the ECC and parity check features. Select Parity to enable the parity check feature. The ECC feature enables BIOS to detect and correct data errors. Disable this parameter if you installed SIMMs without parity or if you want to disregard the function. 2. 3. 4 Memory at 15MB-16MB Reserved For To prevent memory address conflicts between the system and expansion boards, reserve this memory range for the use of either the system or an expansion board. 2. 3. 5 USB Host Controller This parameter lets you enable or disable the USB controller. The USB function allows your system to support additional peripherals. This clears all resource assignments and allows BIOS to reassign resources to all installed PnP devices the next time the system boots. After clearing the resource data, the parameter resets to No. Refer to section 1. 9 for instructions on installing and configuring ISA cards. BIOS Utility 2-15 2. 5 Power Saving Configuration The Power Saving Configuration parameters are configurable only if your system supports the power-management feature. The following screen shows the Power Saving Configuration parameters and their default settings: Power Saving Configuration Page 1/1 Power Management Mode . . . . . . . . . . . . . . . . [Enabled ] IDE Hard Disk Standby Timer . . . . . . . [ 15] Minute(s) System Standby Timer . . . . . . . . . . . . . . [ 15] Minute(s) System Suspend Timer . . . . . . . . . . . . . . [ 15] Minute(s) Monitored Activities *IRQ 0 . . . . . . . . [Disabled] IRQ IRQ IRQ IRQ IRQ *IRQ *IRQ IRQ 8 . . . . . . . [Disabled] 9 . . . . . . . . [Disabled] 10 . . . . . . . [Disabled] 11 . . . . . . . [Disabled] 12 . . . . . . . [Enabled ] 13 . . . . . . . [Enabled ] 14 . . . . . . . [Enabled ] 15 . . . . . . . [Disabled] = Move Highlight Bar, PgDn/PgUp = Move Screen, = Change Setting F1 = Help, Esc = Exit 2. 5. 1 Power Management Mode This parameter allows you to reduce power consumption. When this parameter is set to Enabled, you can configure the IDE hard disk and system timers. Setting to Disabled deactivates the power-management feature and all the timers. 2-16 User's Guide IDE Hard Disk Standby Timer This parameter allows the hard disk to enter standby mode after inactivity of 1 to 15 minutes, depending on your setting. When you access the hard disk again, allow 3 to 5 seconds (depending on the hard disk) for the disk to return to normal speed. Set this parameter to Off if your hard disk does not support this function. System Standby Timer This parameter sets the system to a "fast-on power-saving mode. It automatically enters into the standby mode after a specified period of inactivity. Any keyboard or mouse action, or any enabled monitored activities occurring through the IRQ channels resume system operation. System Suspend Timer This parameter sets the system to the lowest power-saving mode. It automatically enters into the suspend mode after a specified period of inactivity. [. . . ] Enter the BIOS utility and select System Security. and select None to remove the existing to display the password prompt and key-in a new 2-24 User's Guide 4. 6. Press to exit the System Security screen and return to the main menu. A dialog box appears asking if Press you want to save the CMOS data. [. . . ]