Supermicro X7DWT User Manual page 25

able 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 Size
Firmware Hub 1 MB
fl ash memory
(System BIOS)
Local APIC 4 KB
Area Reserved 2 MB
for the chipset
I/O APIC (4 4 KB
Kbytes)
PCI Enumeration 256 MB
Area 1
PCI Express (256 256 MB
MB)
PCI Enumeration 512 MB
Area 2 (if needed)
-Aligned on 256-
MB boundary-
VGA Memory 16 MB
TSEG 1 MB
Memory available
to OS & other
applications
To Install: Insert module
vertically and press down
until it snaps into place.
Pay attention to the align-
ment notch at the bottom.
To Remove:
Use your thumbs to
gently push the release
tabs near both ends of
the module. This should
release it from the slot.
Physical Memory
Remaining (-Available)
(3 GB Total System Memory)
3.00
3.00
3.00
3.00
3.00
3.00
3.00
2.85
2.84
2.84
Installing and Removing DIMMs
X7DWT-INF
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
2 FBD
2 FBD