Supermicro SBI-7228R-T2F, User Manual, Page: 39 / 86

3-9
Chapter 3: Setup and Installation
3-4 Onboard Battery Installation
A battery is included on the mainboard to supply certain volatile memory components
with power when power has been removed from the blade module. If this battery dies, it
must be replaced with an equivalent CR2032 Lithium 3V battery. Dispose of used
batteries according to the manufacturer's instructions. See
Figure 3-12 for a diagram of
installing a new onboard battery.
Caution: There is a danger of explosion if the onboard battery is installed upside down,
which reverses its polarities.
Figure 3-12. Installing the Onboard Battery
3-5 Memory Installation
The mainboard of each blade unit must be populated with DIMMs (Dual In-line Memory
Modules) to provide system memory.
The DIMMs should all be of the same size and
speed and from the same Super Micro authorized manufacturer due to
compatibility issues.
See details below on supported memory and our web site
( www.supermicro.com/products/superblade for recommended memory.
Populating Memory Slots
Each node’s mainboard of a SBI-7228R-T2F blade module has eight (8) memory slots,
four for each processor. Both interleaved and non-interleaved memory are supported,
so you may populate any number of DIMM slots. Total memory capacity for the module
is 256 GB for RDIMM or 512 GB for LRDIMM per node.
Populating two slots at a time ( DIMM2A, DIMM4A, etc.) with
memory modules of the same size and of the same type will result in dual-channel,
interleaved memory, which is faster than single-channel, non-interleaved memory. See
Table 3-1: "Populating Eight Memory Slots for Interleaved Operation" on page 3-10 for
details.
For an interleaved configuration, memory modules of the same size and speed
must be installed in pairs. You should not mix DIMMs of different sizes and
speeds.
Lithium Battery
Battery Holder