Oracle Sun SPARC T4-4 Main Module Assembly (P/N: 7041488)

1. Structural Architectural Profile

The 7041488 Main Module is a specialized, multi-layered daughter-and-motherboard consolidation framework. Unlike basic single-board x86 servers, it houses a series of heavy vertical blind-mate slots engineered to structurally secure and electrically bridge Oracle’s dense SPARC hardware components.

Attribute	Technical Specification
Oracle/Sun Part Number	7041488
Equivalent / Sub-Assembly PNs	7041481, 7048938, 7046812, 7041063
Chassis Compatibility	Oracle Sun SPARC T4-4 Rack Server (5U Form Factor)
Role	Core System Motherboard / System Interconnect Backplane

2. Integrated Components Included Natively

A complete pull or factory replacement of the 7041488 main module kit typically integrates several critical subsystem control modules directly onto the board layout:

1x System Board Management Layer: Dual-socket connectivity routing directly to the massive computing processor riser nodes.
1x Integrated Service Processor Slot: Houses the default Oracle SPARC Service Processor (SP) daughter-card (P/N: 7054795) which drives the baseboard Integrated Lights Out Manager (ILOM).
2x Storage SAS Controller Interfaces: Hosts dual Hardware RAID Expansion Modules (P/N: 7047855) providing native enterprise hardware-accelerated SAS/SATA RAID operations across the server’s drive cages without stealing PCIe expansion paths.

3. High-Tier Computing Topology Support

The 7041488 module is hard-wired with ultra-low latency serial trace routes to handle full load scalability when the server is fully built out:

Processor Module Support

Directly interfaces with up to two (2) separate dual-CPU Processor Modules (Product No: 541-4284).
Bridges a maximum configuration of four (4) 8-core 3.0 GHz SPARC T4 Processors simultaneously.
Handles high-concurrency throughput routing for up to 32 physical cores and 256 execution threads across the fabric.

Memory & Cache Routing System

Maintains memory channel signaling arrays to handle a massive layout of 64 DDR4/DDR3 ECC DIMM slots spread over the processing modules.
Fully architecture-compliant to pass data to up to 1.024 TB of system memory (using dense 16 GB or 32 GB registered ECC modules).

4. Backplane Expansion & Storage I/O Links

The edges and base arrays of the 7041488 assembly feature integrated interfaces providing connectivity out to the server’s physical chassis ports:

PCI Express Scalability: Maps bus logic pathways out to sixteen (16) Low-Profile PCIe Gen2 x8 slots via the platform’s independent removable pluggable I/O assemblies.
Network Interface Processing: Connects to four onboard physical Gigabit Ethernet interfaces (10/100/1000 Mbps) or passes data through dual QSFP connectors supporting 10 GbE pipelines via optional XAUI pass-through modules.
Chassis Security Features: Interfaces with the physical disk cage backplane handling up to eight 2.5-inch SAS-2 hot-swap hard disk drives (HDDs) or solid-state drives (SSDs).