Datasheet

5-10
S
uperWorkstation 7045A-WT User's Manual
To Install: Insert module vertically and press down until it snaps into place. Pay attention to the bottom
notches.
To Remove: Use your thumbs to gently push each release tab outward to free the DIMM from the
slot.
Figure 5-3. DIMM Installation
DDR2 FBD DIMM
Possible System Memory Allocation & Availability
System Device Size Physical Memory
Remaining (-Available)
(4 GB Total System Memory)
Firmware Hub fl ash memory (System
BIOS)
1 MB 3.99
Local APIC 4 KB 3.99
Area Reserved for the chipset 2 MB 3.99
I/O APIC (4 Kbytes) 4 KB 3.99
PCI Enumeration Area 1 256 MB 3.76
PCI Express (256 MB) 256 MB 3.51
PCI Enumeration Area 2 (if needed)
-Aligned on 256-MB boundary-
512 MB 3.01
VGA Memory 16 MB 2.85
TSEG 1 MB 2.84
Memory available to OS and other ap-
plications
2.84
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 remaining available for op-
erational use will be reduced when 4 GB of RAM is used. The reduction in memory
availability is disproportional. Refer to the table below for details.