Chapter 5: Advanced Serverboard Setup
5-11
5-10
S
UPER
S
ERVER 1018R-WC0R User's Manual
Notes:
Using DDR4 DIMMs with different operating frequencies is not allowed. Be sure to
use memory modules of the same type, same speed, same frequency on the same
motherboard. All channels in a system will run at the lowest common frequency.
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 re-
duction in memory availability is disproportional. See the following table for details.
Possible System Memory Allocation & Availability
System Device
Size
Physical Memory
Remaining (Available)
(4 GB Total System
Memory)
Firmware Hub flash 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
TSEG
1 MB
2.84
Memory available to OS and other applications
2.84
5-6 Adding PCIe Add-On Cards
The 1018R-WC0R can accommodate two full-height, full-length PCIe 3.0 x16 and
one low-profile, half-length PCIe 3.0 x8 add-on (expansion) cards installed to the
riser cards included in the system.
Installing an Add-on Card
1. Begin by removing the shield located by the riser card.
2. Fully seat the card into the riser, pushing down with your thumbs 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 PCIe slot shields protect the serverboard and its components from EMI
and aid in proper ventilation, so make sure there is always a shield covering
each unused slot.
PCIe Card Locations
#
Expansion Card
Riser Card
1
One low-profile, half-length PCIe 3.0 x8 card
RSC-R1UW-E8R-O-P
2
One full-height, full-length PCIe 3.0 x16 card
RSC-R1UW-2E16-O-P
3
One full-height, full-length PCIe 3.0 x16 card
1
1
1
3
1
2
Figure 5-5. PCI Expansion Card Configuration
Summary of Contents for SUPERSERVER 1018R-WC0R
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