IBM S822LC, Technical Overview And Introduction

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Chapter 1. Architecture and technical description
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Table 1-2 Physical dimensions for the Power S822LC servers
1.6 System architecture
This section describes the overall system architecture for the Power S822LC computing
servers. The bandwidths that are provided throughout the section are theoretical maximums
that are used for reference.
The speeds that are shown are at an individual component level. Multiple components and
application implementation are key to achieving the preferred performance. Always do the
performance sizing at the application workload environment level and evaluate performance
by using real-world performance measurements and production workloads.
The Power S822LC server is a two single chip module (SCM) system. Each SCM is attached
to four memory riser cards that have buffer chips for the L4 Cache and four memory RDIMM
slots. The server has a maximum capacity of 32 memory DIMMs when all the memory riser
cards are populated, which allows for up to 1024 GB of memory.
The servers have a total of three PCIe Gen3 slots with all of these slots being CAPI-capable.
The system has sockets for four GPUs each 300 W capable.
An integrated SATA controller is fed through a dedicated PCI bug on the main system board
and allows for up to two SATA HDDs or SSDs to be installed. This bus also drives the
integrated Ethernet and USB port.
Dimension Power S822LC (8335-GTB) server
Width 441.5 mm (17.4 in.)
Depth 822 mm (32.4 in.)
Height 86 mm (3.4 in.)
Weight (maximum configuration) 30 kg (65 lbs.)