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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-M
boundary-
VGA Memory
TSEG
Memory available for the OS & other applications
5-6
Adding PCI Expansion Cards
PCI Expansion Slots
One riser card is used to support PCI expansion cards in the system. The RSC-
R2UU-UA3E8+ riser card can support one UIO card and three full-height, full-length
PCI-Express x8 expansion cards.
Installing a PCI Add-on Card
1.
Remove the chassis cover.
2.
Release the locking tab that corresponds to the PCI slot shield for the slot
you wish to populate.
3.
Insert the expansion card into the riser card, pushing down with your thumbs
evenly on both sides of the card.
4.
Slide the add-on card into the riser card and attach the add-on card bracket
in place of the PCI slot shield.
5.
Secure the add-on card by closing the PCI slot shield lever.
6.
Connect cables to the add-on card as necessary.
Note: If the left side riser is with 2 or more x8 PCI-E slots make sure an installed
card on the left side riser is detected. If it is not, then go to the system's BIOS Setup
and in Advanced/ PCI/PnP Confi guration /SXB1 Confi guration BIOS setting select
the [2x8] option. Then save the BIOS setting changes and reboot the system.
Chapter 5: Advanced Serverboard Setup
Size
Physical Memory Available
(4 GB Total System
Memory)
1 MB
3.99 GB
4 KB
3.99 GB
2 MB
3.99 GB
4 KB
3.99 GB
256 MB
3.76 GB
256 MB
3.51 GB
512 MB
3.01 GB
16 MB
2.85 GB
1 MB
2.84 GB
2.84 GB
5-9
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