Using Your NEC Versa 4-27To remove a DIMM, press the locking tabs away fromthe sides of the module until the module pops up. Then,remove the DIMM.7. Replace the memory socket cover.8. Run the Setup program to register the new memoryinstalled.Reviewing the Memory MapThe system supports system and video shadowing, bothcontrolled through complementary metal oxide semiconduc-tor (CMOS). The system supports BIOS as a cacheablearea with write protection. The following table shows thesystem's memory map.Memory MapMEMORY SPACE SIZE FUNCTION00000000h-0009FFFFh 640 KB DOS Applications & Optional MemorySpace Gap000A0000h-000A7FFFh 96 KB Video (VGA) Graphics Memory000B0000h-000BFFFFh 32 KB Text Mode Memory (SMM Space)000C0000h-000CC7FFh 40 KB Video (VGA) BIOS000CA000h-000CFFFFh 24 KB PnP BIOS / PCI BIOS000D0000h-000DFFFFh 64 KB Setup / PCMCIA Window (ExtendedMemory or Upper Memory Block)000E0000h-000FFFFFh 128 KB System BIOS ROMTo -00FFFFFFh 16 MB Total Base MemoryTo -FFFEFFFFh 80 MB Total Expansion Memory
