Supermicro X7DCA-3 User Manual page 29

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) -Aligned on 256-
MB boundary-
VGA Memory
TSEG
Memory available to OS and other applications
To Remove:
Use your thumbs to
gently push the re-
lease tabs near both
ends of the module
to release it from the
slot.
Size
1 MB
4 KB
2 MB
4 KB
256 MB
256 MB
512 MB
16 MB
1 MB
Installing and Removing DIMMs
Notch
Release Tab
To Install: Insert module vertically and press
down until it snaps into place. Pay attention to the
alignment notch at the bottom.
Top View of DDR2 ECC Slot
Release Tab
2-7
Chapter 2: Installation
Physical Memory
Remaining (-Available)
(4 GB Total System Memory)
3.99
3.99
3.99
3.99
3.76
3.51
3.01
2.85
2.84
2.84
DDR2 ECC (Buffered) Memory
Release Tab
Notch
Release Tab