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SERIES3800/S120T (7045A-C3/7045A-CT) 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

Note: Notch
should align
with its
receptive point
on the slot
Notch Notch
Release
Tab
Release
Tab
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