Memory: Dell® XPS P75/P90/P100 Mini Tower

Memory: XPS P75/P90/P100 Mini Tower

Memory Installation Guidelines | Base/Board Memory | Installing and Removing Memory | Upper Memory Map | Conventional Memory Map

Memory Installation Guidelines

The 4 SIMM sockets can accommodate from 8 to 128 MB of RAM.
Supported SIMM sizes are 4, 8, 16, and 32 MB, rated at 70 ns or better.
SIMMs are 32-bit, nonparity.
SIMMs must be installed in matched pairs.
SIMM socket pairs must be filled in this order: J3J1 and J3H1; J3G1 and J3F1.
The number and arrangement of chips on the SIMM may vary.
The SIMMs used on this system have tin leads.

SIMM Sockets

Base/Board Memory

Total	J3J1	J3H1	J3G1	J3F1
8 MB	4 MB	4 MB
16 MB	4 MB	4 MB	4 MB	4 MB
16 MB	8 MB	8 MB
24 MB	8 MB	8 MB	4 MB	4 MB
32 MB	8 MB	8 MB	8 MB	8 MB
32 MB	16 MB	16 MB
40 MB	16 MB	16 MB	4 MB	4 MB
48 MB	16 MB	16 MB	8 MB	8 MB
64 MB	16 MB	16 MB	16 MB	16 MB
64 MB	32 MB	32 MB
72 MB	32 MB	32 MB	4 MB	4 MB
80 MB	32 MB	32 MB	8 MB	8 MB
96 MB	32 MB	32 MB	16 MB	16 MB
128 MB	32 MB	32 MB	32 MB	32 MB

Installing and Removing Memory

Installing a SIMM

1. Remove the cover.
2. While pushing outward on each of the SIMM socket's metal tabs, rotate the SIMM upward until it is released from its socket.

To replace a SIMM, align the SIMM with the slot in the center of the socket with the cutout toward the back of the chassis and press slowly upward until it snaps into place.

Upper Memory Map

Location	Size	Description
FFFF0000-FFFFFFFF	64 KB	BIOS ROM
08000000-FFFEFFFF		Reserved
0010FFF0-07FFFFFF	126.9 MB	Extended memory
00100000-0010FFEF	64 KB	High memory area
000F0000-000FFFFF	64 KB	System BIOS
000C8000-000EFFFF	160 KB	Available
000C0000-000C7FFF	32 KB	Video BIOS
000A0000-000BFFFF	128 KB	Video RAM
0009FC00-0009FFFF	1 KB	PS/2-mouse data area
00000000-0009FBFF	639 KB	Conventional memory

Conventional Memory Map

Segment	Address Range	Use
0	00000h-003FFh	Interrupt vector table
	00400h-004FFh	BIOS data area
	00500h-005FFh	MS-DOS work area
	00600h-0FFFFh	User memory
1	10000h-1FFFFh	User memory
2	20000h-2FFFFh	User memory
3	30000h-3FFFFh	User memory
4	40000h-4FFFFh	User memory
5	50000h-5FFFFh	User memory
6	60000h-6FFFFh	User memory
7	70000h-7FFFFh	User memory
8	80000h-8FFFFh	User memory
9	90000h-9FBFFh	User memory
	9FC00h-9FFFFh	PS/2-mouse data area