A+ SERVER
DIMM Module Population Configuration
For memory to work properly, follow the tables below for memory installation:
Per Channel DIMM Populations Options
DIMM Type | DIMM A | DIMM B | Max. MHz, | Max. MHz, | Max. GB/ | |
|
|
| 1.5V DIMMs | 1.35V DIMMs | Channel | |
|
|
|
|
|
| |
| SR or DR | Empty |
|
|
| |
Unbuffered |
|
|
|
|
| |
SR | SR | 1333 MHz | 1333 MHz | 8 GB | ||
DIMM | ||||||
|
|
|
|
| ||
| DR | DR |
|
|
| |
|
|
|
|
|
| |
| SR or DR | Empty |
|
|
| |
|
|
|
|
|
| |
| SR | SR | 1333 MHz | 1333 MHz | 16 GB | |
Registered |
|
|
|
|
| |
DR | DR |
|
|
| ||
DIMM |
|
|
| |||
|
|
|
|
| ||
| QR | Empty | 1333 MHz | 1066 MHz | 16 GB | |
|
|
|
|
|
| |
| QR | QR | 1066 MHz | 800 MHz | 32 GB | |
|
|
|
|
|
|
Note 1: Due to OS limitations, some operating systems may not show more than 4 GB of memory.
Note 2: Due to memory allocation to system devices, the amount of memory that remains available for operational use will be reduced when 4 GB of RAM is used. The reduction in memory availability is disproportional.
Possible System Memory Allocation & Availability
System Device | Size | Physical Memory Available | |
|
|
| (4 GB Total System |
|
|
| Memory) |
Firmware Hub flash memory (System BIOS) | 1 MB | 3.99 GB | |
|
|
|
|
Local APIC | 4 | KB | 3.99 GB |
|
|
|
|
Area Reserved for the chipset | 2 | MB | 3.99 GB |
|
|
|
|
I/O APIC (4 Kbytes) | 4 | KB | 3.99 GB |
|
|
| |
PCI Enumeration Area 1 | 256 MB | 3.76 GB | |
|
|
| |
PCI Express (256 MB) | 256 MB | 3.51 GB | |
|
|
| |
PCI Enumeration Area 2 (if needed) | 512 MB | 3.01 GB | |
boundary- |
|
|
|
|
|
| |
VGA Memory | 16 MB | 2.85 GB | |
|
|
| |
TSEG | 1 MB | 2.84 GB | |
|
|
|
|
Memory available for the OS & other applications |
|
| 2.84 GB |
|
|
|
|