IBM Power System S924 (Model 9009-42A)

The IBM Power System S924 (9009-42A) is a high-performance, 2-socket 4U rack-mount server powered by IBM POWER9 processors. It is engineered for data-intensive enterprise applications, mission-critical databases, and hybrid cloud workloads, offering built-in PowerVM virtualization and high reliability.

System Architecture & Specifications

Feature	Technical Specification
Form Factor	19-inch Rack-mount, 4U EIA units
Processor Sockets	1 or 2 Sockets
Processor Technology	IBM POWER9 Architecture
Max Active Cores	Up to 24 Active Cores
Maximum Memory	Up to 4096 GB (4 TB) DDR4 ECC RAM
Memory Bandwidth	Up to 170 GB/s per socket (340 GB/s total system)
Bus Bandwidth	Up to 7 TB/s on-chip L2 to L3 cache bandwidth
PCIe Slots	Up to 11 PCIe slots (includes PCIe Gen4 & Gen3 slots)
Virtualization	Integrated IBM PowerVM Enterprise

Processor & Memory Configurations

Processor Options

• 8-core Module (#EP1E): Typical 3.8 to 4.0 GHz (max) POWER9

• 10-core Module (#EP1F): Typical 3.5 to 3.9 GHz (max) POWER9

• 11-core Module (#EP1H): Typical 3.45 to 3.9 GHz (max) POWER9

• 12-core Module (#EP1G): Typical 3.4 to 3.9 GHz (max) POWER9

Memory Subsystem

• DIMM Slots: 32 DDR4 IS-DIMM slots (16 per processor socket)

• Supported Capacities: 8 GB (#EM60), 16 GB (#EM62), 32 GB (#EM63), 64 GB (#EM64), 128 GB (#EM65)

• Operating Speeds: 2133 MHz, 2400 MHz, and 2666 MHz (dependent on DIMM count and configuration)

• Memory Features: Chipkill, ECC protection, Active Memory Expansion (hardware compression)

Storage & I/O Expansion

Storage Backplane Options

• Base Option (#EJ1C): 12 SFF-3 SAS drive bays + 1 optional RDX tape bay

• Split Feature (#EJ1E): Splits 12 SFF bays into 6+6 configuration with a second internal SAS controller

• Expanded Function (#EJ1D): 18 SFF-3 SAS drive bays + Dual IOA with Write Cache and external SAS port

• NVMe Carrier Option (#EC59): PCIe3 NVMe carrier card with two M.2 module slots

PCIe Slot Distribution (2-Socket Configuration)

• 3 x16 Gen4 full-height, half-length slots (CAPI 2.0 supported)

• 2 x8 Gen4 full-height, half-length slots (x16 connectors, CAPI 2.0 supported)

• 2 x8 Gen3 full-height, half-length slots (x16 connectors)

• 4 x8 Gen3 full-height, half-length slots

External Ports & Connections

• Front: 1 x USB 3.0 port

• Rear: 2 x USB 3.0 ports, 2 x 1 GbE HMC RJ45 ports, 1 x System RJ45 management port

Operating System & Software Support

• IBM AIX: AIX 7.2 TL2, AIX 7.1 / 7.2 / 6.1 (in P8/P7 compatibility mode)

• IBM i: IBM i 7.3 TR4, IBM i 7.2 TR8 or later

• Linux: Red Hat Enterprise Linux (RHEL 7.4+), SUSE Linux Enterprise Server (SLES 12+), Ubuntu 16.04.4 LTS+

Physical, Electrical & Environmental Specifications

• Dimensions: Height: 173.3 mm (6.8 in / 4U) | Width: 482 mm (18.97 in) | Depth: 769.6 mm (30.3 in)

• Weight: 39.9 kg (88 lbs)

• Power Supply: 4 x Redundant, hot-swappable 1400 W AC Power Supplies

• Operating Voltage: 200 V AC to 240 V AC @ 47–63 Hz

• Maximum Power Consumption: 2,750 W

• Cooling: Redundant hot-swappable fans with EnergyScale dynamic thermal management