HP OmniBook 900 HP OmniBook 900 Reference Guide - Page 132
System Memory, System Input/Output Addresses 100-3FF
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Specifications and Regulatory Information Software System Resources System Memory 00000 - 9FFFF A0000 - BFFFF C0000 - CBFFF C0000 - CFFFF CC000 - DBFFF* D0000 - DBFFF* DC000*- FFFFF System memory Video Video BIOS (unmarked models***) Video BIOS ("900 B" models***) Free** (unmarked models***) Free** ("900 B" models***) System BIOS * Approximate boundary. ** Valid uses for memory addresses CC000-DBFFF or D0000-DBFFF: Upper memory blocks (UMBs). PC card memory windows. *** Unmarked models have no "900" after the serial number, "900 B" models have "900 B" after the serial number. System Input/Output Addresses (100-3FF) 120-127 170-177 1F0-1F7 Audio (only models without "900" after serial number) Internal CD-ROM drive (secondary IDE controller) Internal hard disk (primary IDE controller) 220-22F 376 378-37F 388-38B 3B0-3BB 3C0-3DF Audio Internal CD-ROM drive (secondary IDE controller) LPT1 (printer port) Audio Video adapter Video adapter 3E0-3E1 3F0-3F5 3F6 3F7 3F8-3FF PCMCIA controller Floppy controller Internal hard disk (primary IDE controller) Floppy controller COM1 (serial port) 132 Reference Guide