Dell Inspiron 3800 System Reference Manual page 12

Technical Overview: Dell Inspiron 3800 System Reference
Table 5. Upper Memory Map
Address Range
0009FC00-0009FFFF
000A0000-000BFFFF
000C0000-000CFFFF
000CC000-000CDFFF
000F0000-000FFFFF
00100000-03FFFFFF
FD000000-FDFFFFFF
FF200000-FF2FFFFF
FFFE0000-FFFFFFFF
I/O Memory Map
Table 6 provides a map of memory addresses reserved by the system for peripheral I/O devices. Use the information in Table 6 to
determine if the memory address of an external peripheral (such as a PC Card) conflicts with a memory address reserved by the
computer.
Check the documentation of the external I/O device to determine its memory address. If there is a conflict with a memory address
reserved by the computer, change the address of the device.
To view I/O addresses in Windows 98, click the Start button, point to Settings, and click Control Panel. Double-click the System icon.
Click the Device Manager tab, and then double-click Computer.
To view I/O addresses in Windows NT, start the Windows NT Diagnostics in the Administrative Tools (Common) folder.
To view I/O addresses in Windows 2000, click the Start button, point to Settings, and click Control Panel. Double-click the System icon.
Click the Hardware tab, and then click Device Manager.
Table 6. I/O Memory Map
Address
0000-001F
0020-003F
0040-005F
0060-006F
0070-007F
0080-009F
00A0-00BF
00C0-00DF
00F0-00FF
0170-0177
file:///F|/Service%20Manuals/Dell/Inspiron/3800/overview.htm (9 of 10) [2/28/2004 6:58:48 AM]
Use
PS/2-mouse data area
Video random-access memory (RAM)
Video BIOS
Reserved for PC Card
System BIOS
High memory area
Video RAM
Video RAM
BIOS ROM
Device
DMA controller #1
Interrupt controller #1
System timers
Keyboard controller
RTC and nonmaskable interrupt (NMI) enable
DMA page registers
Interrupt controller #2
DMA controller #2
Math coprocessor
CD-ROM drive controller