Memory Configuration; Show Memory - Compaq AlphaServer DS20 Service Manual

Memory Addressing
The first address of each bank is one above the ending address of the previous bank.
Example 1–1 and Figure 1-8 show the starting address of each memory bank using
either the SRM console or AlphaBIOS.
Example 1–1 Show Memory
P00>>> show memory
Array # Size
------- ----------
0 128 MB
1 128 MB
2 128 MB
3 128 MB
Total Bad Pages = 0
Total Good Memory = 512 MBytes
P00>>>
Figure 1-8 Memory Configuration
Display System Configuration
Systemboard Configuration
Hard Disk Configuration
PCI Configuration
SCSI Configuration
ISA Configuration

Memory Configuration

Integrated Peripherals
Bank 0: 128 MB (32 MB per DIMM) -- Starting Address = 0x00000000
Bank 1: 128 MB (32 MB per DIMM) -- Starting Address = 0x80000000
Bank 2: 128 MB (32 MB per DIMM) -- Starting Address = 0x10000000
Bank 3: 128 MB (32 MB per DIMM) -- Starting Address = 0x18000000
ESC =Exit
DIMM Contents
Figure 1-7 shows the data contents of each DIMM in memory. Odd data bytes are in
DIMMs below the cross-bar switch chipset, and the even data bytes are in the DIMMs
above the cross-bar switch chipset.
Base Addr
---------
000000000
008000000
010000000
018000000
æ
System Memory Configuration
F1= Help
System Overview 1-15