Technical Information 1-9Table Section 1-5 I/O Address MapAddress (Hex) I/O Device Name0A0-0BF Interrupt controller 20C0-0DF DMA controller 2 (channel 4-7)0E0-0EF Reserved170-177 2nd hard disk1F0-1F7 1st hard disk1F9-1FF Reserved200-207 Game I/O adapter (not available)220-233 Sound board278-27F 2nd parallel port (3rd with DMA)2F8-2FF 2nd asynchronous communications port330-331 MIDI Port370-377 Diskette controller 2378-37F 1st parallel port (2nd with DMA)388-38B FM Synthesizer3A0-3AF Primary bisynchronous communications port3B0-3DF Video Graphics Array (VGA)3B0-3BF Monochrome display adapter/printer 13C0-3CF Enhanced Graphics Adapter (EGA) 13D0-3DF Color/Graphics Adapter (CGA and EGA)3F0-3F7 Diskette Controller3F8-3FF Serial Port 1System MemoryThe Power V486 system boards come standard with 8 MB of RAM (PowerMate V4100multimedia systems come with 16 MB). The first megabyte includes the standard 640 KBof base memory. The remaining memory is extended memory. Two SIMM sockets are in-tegrated on the system board. The maximum possible memory is 64 MB.The SIMM memory sockets accept 4-, 8, 16-, or 32-MB SIMMs. Two 32-MB SIMMs maybe installed for a total of 64 MB. High-speed RAM is 32 bits wide (no parity) or 36 bitswide (with parity). No parity SIMMs are 1 MB x 32 bit (4 MB), 4 MB x 32 bit (16 MB),and 8 MB x 32 bit (32 MB). There are no switches or jumpers to set when SIMMs areadded.
