128
007-4047-001
A: Technical Specifications
Table A-16 provides details about the memory address map.
Table A-17 lists the device function for each hex range.
Table A-16
Memory Address Map
Address
Size
Function
0000000-009FFFF
640-KB system memory
On-board DRAM
00A0000-00BFFFF
128-KB video RAM
Reserved for graphics display buffer
Non-cacheable
00C0000-00C7FFF
32 KB for VGA BIOS
Reserved for on-board VGA
00C8000-00CFFFF
32-KB I/O expansion ROM
Reserved for ROM on I/O adapters
00D0000-00D3FFF
16-KB I/O expansion ROM
Reserved for ROM on I/O adapters
00D4000-00D7FFF
16-KB I/O expansion ROM
Reserved for ROM on I/O adapters
00D8000-00DBFFF
16-KB I/O expansion ROM
Reserved for ROM on I/O adapters
00DC000-00DFFFF
16-KB I/O expansion ROM
Reserved for ROM on I/O adapters
00E0000-00E7FFF
32 KB for SCSI BIOS
Reserved for SCSI BIOS
00E8000-00EFFFF
32 KB
Reserved on-board
00F0000-00FFFFF
64-KB BIOS
System ROM BIOS (ROM)
System RAM BIOS (DRAM)
0100000-0F9FFFF
System memory
On-board DRAM
0FA0000-0FFFFFF
384-KB I/O card memory
Reserved for memory map
I/O card
Non-cacheable
1000000-FFFFFFF
System memory
On-board DRAM
Table A-17
I/O Address Map
Hex Range
Device Function
000-01F
DMA controller-1, 8237
020-027
Interrupt controller-1, 8259
Summary of Contents for SGI 1100
Page 1: ...SGI 1100 Server Maintenance and Upgrade Guide 007 4047 001 ...
Page 3: ...007 4047 001 iii Record of Revision Version Description 001 January 2001 Initial Revision ...
Page 4: ......
Page 8: ...viii 007 4047 001 Serial Ports 139 USB Ports 140 Ethernet Ports RJ45 141 Index Index 143 ...
Page 12: ......
Page 34: ......
Page 49: ...Replacing the Chassis Fan Subsystem 007 4047 001 33 Figure 2 10 Removing the Chassis Fan Cage ...
Page 109: ...Replacing the System Board 007 4047 001 93 Figure 2 55 Removing the System Board ...
Page 112: ......
Page 158: ......