SUPERSERVER
Notes: Due to OS limitations, some operating systems may not show more than 4 GB of memory. Due to memory allocation to system devices, memory remain- ing available for operational use will be reduced when 4 GB of RAM is used. The reduction in memory availability is disproportional. (Refer to the Memory Availability Table below for details.)
Possible System Memory Allocation & Availability
System Device
Firmware Hub fl ash memory (System BIOS)
Local APIC
Area Reserved for the chipset
I/O APIC (4 Kbytes)
PCI Enumeration Area 1
PCI Express (256 MB)
PCI Enumeration Area 2 (if needed)
Size
1 MB
4 KB
2 MB
4 KB
256MB
256MB
512MB
Physical Memory Remaining (4 GB Total System Memory)
3.99
3.99
3.99
3.99
3.76
3.51
3.01
VGA Memory
TSEG
Memory available to System BIOS & OS applications
16MB 1 MB
2.85
2.84
2.84
Figure 5-3. Installing DIMM into Slot
DDR2 FBD DIMM
To Install: Insert module vertically and press down until it snaps into place. Pay attention to the bottom
notch.
To Remove: Use your thumbs to gently push each release tab
outward to free the DIMM from the slot.
Top View of DDR2 FBD Slot |
