2-8 Dell OptiPlex E1 Managed PC Reference and Installation Guide'LVNHWWH 'ULYH $Selecting Diskette Drive A: as the first device causes the system to try bootingfrom drive A first. If the system finds a diskette that is not bootable in the drive orfinds a problem with the drive itself, it displays an error message. If it does notfind a diskette in the drive, the system tries to boot from the next device in theboot sequence list.+DUG'LVN 'ULYHSelecting Hard Disk Drive causes the system to attempt to boot first from thehard-disk drive and then from the next device in the boot sequence list.,'( &'520 5HDGHUSelecting IDE CD-ROM Reader causes the system to try booting from theCD-ROM drive first. If the system finds a CD that is not bootable in the drive orfinds a problem with the drive itself, it displays an error message. If it does notfind a CD in the drive, the system tries to boot from the next device in the bootsequence list.2QERDUG 1,&Selecting Onboard NIC causes the system to try booting from the integrated net-work interface controller (NIC) first.3;(Selecting PXE (Preboot eXecution Environment) causes the system to boot fromthe integrated network interface controller (NIC) first. If a boot routine is not avail-able from the network server, the system tries to boot from the next device inthe boot sequence list.6\VWHP0HPRU\System Memory indicates the entire amount of installed memory detected in yoursystem, except for memory on Expanded Memory Specification (EMS) expansioncards. After adding memory, check this category to confirm that the new memory isinstalled correctly and is recognized by the system.9LGHR0HPRU\Video Memory displays the amount of video memory detected in your system.5HVHUYHG0HPRU\Reserved Memory allows you to designate a region of system board memory thatcan be supplied by an expansion card. You should not enable the reserved memoryfeature unless you are using an expansion card that requires special addressing.