Memory: Dell Dimension P133v, P166v, and P200v
Memory: Dell™ Dimension™ P133v, P166v, and P200v
Memory Installation
Guidelines | DIMM
Configurations | Installing/Removing
Memory | Upper Memory Map | Conventional Memory Map | Flash Memory Implementation
Memory
Installation Guidelines
The system board provides two 168-pin, 3.3-V DIMM sockets for
memory expansion. The sockets support 2 M x 64 (16 MB), 4 M x 64
(32 MB), and 8 M x 64 (64 MB) DIMM modules. The maximum memory
size, using two 4 M x 64 SDRAM DIMM modules, is 64 MB. Memory
timing requires 67-MHz (or higher) SDRAM or 60-ns EDO devices.
Gold-plated (>= 30u") DIMMs are required. The following
table defines the possible memory configurations.
 |
NOTE: The only 32-MB SDRAM DIMMs
validated for use in this computer are the following:
- Samsung KMM366S403AT1-G2
- Hitachi HB526A464EN-10
- Samsung KMM366S403AT-G2
- Toshiba THMY644021AEG-12A
The computer may not recognize other 32-MB SDRAM
DIMM modules and may fail POST.
|
DIMM Configurations
BANK0
DIMM Type (Amount) |
BANK1
DIMM Type (Amount) |
Total System Memory |
| 2 M x 64 (16 MB) |
Empty |
16 MB |
| 2 M x 64 (16 MB) |
2 M x 64 (16 MB) |
32 MB |
| 4 M x 64 (32 MB) |
2 M x 64 (16 MB) |
48 MB |
| 4 M x 64 (32 MB) |
4 M x 64 (32 MB) |
64 MB |
| 8 M x 64 (64 MB) |
Empty |
64 MB |
Installing/Removing
Memory
See "Installing System Board Options" in the online System
User's Guide.
Upper Memory Map
The following table details the system memory map. The ESCD
area fron ED000-EDFFF is not available for use as an upper memory
block (UMB) by memory managers. The area from E0000-ECFFF is
currently not used by the BIOS and is available for use as UMB by
memory managers. Parts of this area may be used by future
versions of the BIOS to add increased functionality.
Address Range
(Decimal) |
Address Range
(Hex) |
Size |
Description |
| 1024 K-31072 K |
100000-8000000 |
127 M |
Extended Memory |
| 960 K-1023 K |
F0000-FFFFF |
64 K |
AMI System BIOS |
| 952 K-959 K |
EE000-EFFFF |
8 K |
Flash Boot Block (Available as UMB) |
| 948 K-951 K |
ED000-EDFFF |
4 K |
ESCD (Plug and Play configuration area) |
| 928 K-947 K |
E8000-ECFFF |
20 K |
System BIOS (available as UMB) |
| 896 K-927 K |
E0000-E7FFF |
32 K |
BIOS RESERVED (available as UMB) |
| 800 K-895 K |
C8000-DFFFF |
96 K |
Available HI DOS memory (open ISA and PCI) |
| 640 K-799 K |
A0000-C7FFF |
160 K |
Off-board video memory and BIOS |
| 639 K |
9FC00-9FFFF |
1 K |
Extended BIOS Data (movable by QEMM, 386MAX) |
| 512 K-638 K |
80000-9FBFF |
127 K |
Extended conventional |
| 000 K-511 K |
00000-7FFFF |
512 K |
Conventional |
| 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 |
The Intel� PA28FB200BX 2-Mb Flash component is organized as
256 K x 8 (256 KB). The Flash device is divided into 5 areas, as
described in Table 1. If a 1-Mb Flash component is used, Table 2
describes the organization of the 128 K x 8 (128 KB) area.
| Table
1. (256-KB) Flash Memory Area |
| System Address |
Flash Memory Area |
| F0000H-FFFFFH |
64-KB Main BIOS |
| EC000H-EFFFFH |
16-KB Boot Block (not flash erasable)* |
| EA000H-EBFFFH |
8-KB Plug and Play ESCD Storage Area |
| E8000H-E9FFFH |
8-KB OEM Area* |
| E0000H-E7FFFH |
32-KB System BIOS (reserved during boot)* |
| * Available for UMB usage |
| Table 2.
(128-KB) Flash Memory Area |
| System Address |
Flash Memory Area |
| F0000H-FFFFFH |
64-KB Main BIOS |
| EE000H-EFFFFH |
8-KB Boot Block (not flash erasable)* |
| ED000H-EDFFFH |
4-KB Plug and Play ESCD Storage Area |
| EC000H-ECFFFH |
4-KB OEM Area* |
| E0000H-EBFFFH |
48-KB System BIOS (reserved during boot)* |
| * Available for UMB usage |
The Flash device resides in system memory starting at E0000H
and can be mapped 2 different ways depending on the mode of
operation. In Normal mode, address line A16 is inverted,
setting the E000H and F000H segments so that the BIOS is
organized as shown in the System Address column in Table 2. Recovery
mode removes the inversion on address line A16, swapping the
E000H and F000H segments so that the 16-KB boot block resides at
FE000H where the microprocessor expects the bootstrap loader to
exist. This mode is only necessary in the unlikely event that a
BIOS upgrade procedure is interrupted, causing the BIOS area to
be left in an unusable state. Although Table 2 shows only 128 KB
of ROM space, the other segments are dynamically paged in and out
at run time into the 64-KB BIOS area in system memory.
|
