vThe adapter slots are on the riser-card assembly. You must first remove the riser-card assembly to access the adapter slots.

vThe two PCI Express slots on the riser-card assembly support PCI Express x8 1.0a adapters.

vYou can install one full-height three-quarter-length adapter in expansion slot 1 and one low-profile half-length adapter in expansion slot 2.

vThe optional Remote Supervisor Adapter II SlimLine can be installed only in the dedicated connector on the system board (see “System-boardoptional-device connectors” on page 6 for the location of the connector). To install the Remote Supervisor Adapter II SlimLine, see “Installing a Remote Supervisor Adapter II SlimLine” on page 17.

vThe server uses a rotational interrupt technique to configure PCI Express adapters so that you can install PCI Express adapters that do not support sharing of interrupts.

vAn optional ServeRAID8s controller provides RAID level 5 support to the hot-swap drives. A ServeRAID 8s controller supports the 2.5-inch hard disk drives without modification. To use a ServeRAID 8s controller with hot-swap 3.5-inch drives, you must connect it to the hard disk drive backplane with a SAS signal cable that is 58 cm (22.8 in.) long. See http://www.ibm.com/servers/eserver/ serverproven/compat/us/ for information about ordering the cable.

vAn optional IBM SAS HBA Controller adapter enables you to connect external storage devices, such as SAS or SATA hard disk drives or tape drives, to a simple-swap SATA model server.

vThe server scans the PCI slots to assign system resources. The scan sequence is related to the startup sequence. If you have not changed the default startup sequence, the server scans the PCI slots in the following order: the integrated Ethernet controllers 1 and 2; then, the drives connected to the SAS/SATA controller; then, the PCI Express slots 1 and 2.

Expansion-slot Adapter

bracket

Adapter support bracket

Expansion slot 1

Riser-card assembly

Expansion slot 2

14IBM System x3250 Types 4364 and 4365: Installation Guide

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IBM 4365, 4364 manual

4364, 4365 specifications

The IBM 4365 and 4364 are significant models in IBM’s lineup of mainframe computers, designed primarily for large organizations requiring robust processing capabilities. These models emerged during the late 1980s and early 1990s, serving to enhance the performance and versatility of business computing environments.

The IBM 4365, launched in 1985, is known for its sophisticated architecture and large processing power, capable of managing substantial transaction volumes. It features the advanced Multiple Virtual Storage (MVS) operating system, which allows for efficient processing and management of numerous tasks simultaneously. The MVS system contributes to high reliability and availability, factors paramount for businesses that rely on uninterrupted service.

One of the standout characteristics of the IBM 4365 is its ability to scale. Users could configure the system with multiple processors, allowing it to handle increasing workloads effectively. This scalability is made possible through its use of IBM's proprietary technology, which optimizes resource allocation to improve efficiency. The system could support an impressive number of users, making it ideal for large enterprises.

In contrast, the IBM 4364, released slightly later, is a more modest version aimed at smaller organizations but still renowned for its reliable performance. It too operates the MVS operating system, but its configurations are tailored for less intensive processing needs. It is designed with cost-effectiveness in mind, making it suitable for businesses that require robust computing without the extensive capabilities of larger systems.

Both models benefit from IBM's robust security features, ensuring data protection and compliance with industry standards. Additionally, they offer significant storage options, utilizing IBM's innovative storage technologies to retain vast amounts of data efficiently.

Among the key technologies that defined these mainframes were the use of advanced input/output capabilities and compatibility with a broad range of peripheral devices. This integration allowed organizations to enhance productivity while maintaining seamless operations across various applications.

Overall, the IBM 4365 and 4364 exemplify the evolution of mainframe technology during their era, offering remarkable processing power, superior reliability, and scalability while paving the way for future innovations in enterprise computing. Their legacy remains influential in shaping the landscape of business technology today, as organizations continue to rely on mainframe processing for critical operations.