Chapter 2 48Main• System Time and System Date: The hours are displayed with 24-hour format. The changes in these twoitems take effect immediately.• System Memory: This item reports the memory size of system base memory. The size is fixed to 640KB.• Extended Memory: It reports the memory size of the extended memory in the system. The extendedmemory size is equal to total memory size (one MB).• Video Memory: It indicates the video memory size.• Quiet Boot:• Enabled: Customer Logo is displayed, and Summary Screen is disabled.• Disabled: Customer Logo is displayed, and Summary Screen is enabled.• Power on Display:• Auto: During power on process, the system will detect if any display device is connected on externalvideo port. If any external display device is connected, the power on display will be only in CRT (orprojector) mode. Otherwise, it will be in LCD mode.• Both: Both the integrated LCD and the external video port (for an external CRT or projector) will beenabled simultaneously.• Network Boot: It permits the users to boot from network.• F12 Boot Menu:• Enabled: When it is enabled, the users can modify device boot priority by pressing duringPOST.• Disabled: When it is not enabled, device boot priority will not be adjustable during POST. The bootdevice change is only for one-time change. In other words, when the system is rebooted, the boot