NEC POWERMATE 5100 - SERVICE, Руководство по обслуживанию

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System Board 4-25
DIMM Socket Pin Assignments
Pin Signal Pin Signal Pin Signal
52 CB2 108 NC 164 NC
53 CB3 109 NC 165 SA0
54 VSS 110 VDD 166 SA1
55 DQ16 111 CAS 167 SA2
56 DQ17 112 DQM4 168 VDD
Resources
The system memory map, I/O addresses, and DMA settings are given in the
following sections. System interrupt settings, parallel interrupt settings, and
serial interrupt settings are included in Section 2, “System Configuration.”
Memory Map
The system memory map is shown in the following table.
System Memory Map
Memory Space Size Function
100000-18000000 383 MB Extended memory
FC000-FFFFF 16 KB Boot block
FA000-FBFFF 8 KB ESCD (Plug and Play Configuration and DMI)
F9000-F9FFF 4 KB Reserved for BIOS
F8000-F8FFF 4 KB OEM logo (or Scan User Flash)
E8000-E7FFF 64 KB POST BIOS
E0000-E7FFF 32 KB POST BIOS (currently available as UMB)
C8000-D7FFF 96 KB Available HI DOS memory (open to ISA and PCI bus)
A0000-C7FFF 160 KB Video memory and BIOS
9FC00-9FFFF 1 KB Extended BIOS data (movable by memory manager software)
80000-9FBFF 127 KB Extended conventional memory
00000-7FFFF 512 KB Conventional memory
I/O Addresses
The processor communicates with I/O devices by I/O mapping. The
hexadecimal (hex) addresses of I/O devices are listed in the following table.
Note:
In Plug and Play systems, these addresses are
typical but may vary by configuration.