5-10
A+ SERVER
2022TG-H6IBQRF/H6RF USER'S MANUAL
Note 1
: Due to OS limitations, some operating systems may not show more than
4 GB of memory.
Note 2
: Due to memory allocation to system devices, the amount of memory that
remains available for operational use will be reduced when 4 GB of RAM is used.
The reduction in memory availability is disproportional.
5-6 PCI Expansion Cards
Each computing node includes one preinstalled riser card designed specifically for
use in the SC827 2u rackmount chassis. These riser cards support one low-profile
PCI Express x16 card up to 6.6” in length per node.
Installing an Expansion Card
1. After powering down the system, remove the PCI slot shield.
2. Fully seat the card into the riser card slot, pushing evenly on both sides of the
card.
3. Finish by using a screw to secure the top of the card shield to the chassis.
The PCI slot shield protects the motherboard and its components from EMI
and aid in proper ventilation, so make sure it is always in place.
Possible System Memory Allocation & Availability
System Device
Size
Physical Memory Available
(4 GB Total System Memory)
Firmware Hub flash memory (System BIOS)
1 MB
3.99 GB
Local APIC
4 KB
3.99 GB
Area Reserved for the chipset
2 MB
3.99 GB
I/O APIC (4 Kbytes)
4 KB
3.99 GB
PCI Enumeration Area 1
256 MB
3.76 GB
PCI Express (256 MB)
256 MB
3.51 GB
PCI Enumeration Area 2 (if needed) - aligned on
256 MB boundary
512 MB
3.01 GB
VGA Memory
16 MB
2.85 GB
TSEG
1 MB
2.84 GB
Memory available for the OS & other applications
2.84 GB
Summary of Contents for 2022TG-H6IBQRF
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Page 97: ...Chapter 6 Advanced Chassis Setup 6 21 Release Tab Figure 6 20 Changing the Power Supply ...
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