Chapter 5: Advanced Serverboard Setup
5-9
5-8
S
UPER
S
ERVER 1018R-WR User's Manual
Memory Support
The X10SRW-F supports up to 1 TB of ECC 3DS LRDIMM, 512 GB of ECC
LRDIMM or 256 GB of ECC RDIMM DDR4-2400/2133/1866/1600 memory in eight
DIMM slots.
DIMM Installation
Installing Memory Modules
1. Insert the desired number of DIMMs into the memory slots starting with
DIMMA1. See the Memory Installation Tables below.
2. Insert each DIMM module vertically into its slot. Pay attention to the notch
along the bottom of the module to avoid installing incorrectly (see Figure 5-4).
3. Use your thumbs to gently press down on both ends of the DIMM module
until it snaps into place in the slot. Repeat for all modules.
4.
Press the release tabs to the locked positions to secure the DIMM module
into the slot.
Caution!
Exercise extreme care when installing or removing DIMM modules to
prevent any possible damage.
5-5 Installing Memory
Figure 5-4. DIMM Installation
Socket Key
Memory Population Guidelines
Please follow the tables below when populating the X10SRW-F.
Populating RDIMM/LRDIMM DDR4 Memory Modules
Type
Ranks
Per DIMM
and Data
Width
DIMM Capacity
(GB)
Speed (MT/s); Voltage (V); Slots per Channel (SPC) and
DIMMs per Channel (DPC)
2 Slots per Channel
1 DPC
2 DPC
E5-2600 V3
E5-2600 V4
E5-2600 V3
E5-2600 V4
4 GB
8 GB
1.2 V
1.2 V
1.2 V
1.2 V
RDIMM
SRx4
8 GB
16 GB
2133
2400
1866
2133
RDIMM
SRx8
4 GB
8 GB
2133
2400
1866
2133
RDIMM
DRx8
8 GB
16 GB
2133
2400
1866
2133
RDIMM
DRx4
16 GB
32 GB
2133
2400
1866
2133
LRDIMM
QRx4
32 GB
64 GB
2133
2400
2133
2400
LRDIMM 3DS
8Rx4
64 GB
128 GB
2133
2400
2133
2400
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
