IBM 88553RX, Installation Manual

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Chapter 1. Technical description
3
Table 1-1 Comparing the differences between the x455 and x450
1.1.2 Features not supported
Due to its 64-bit architecture many existing 32-bit applications are no longer
supported. These include:
32-bit and 16-bit operating systems
ServerGuide™
Remote Deployment Manager (RDM)
LANClient Control Manager™ (LCCM)
UpdateExpress
Access Support
64-bit versions of some of these tool will be made available in the future.
The following functions are also not supported:
More than one RXE-100 connected to a single node
Hot add/remove of an RXE-100
Physical partitioning within a single node
Partial mirroring of memory
Hot add/swap of the CD-ROM or diskette drive (if installed)
Inter-Process Communications (IPC) over scalability ports
Hot adding memory (hot swap is supported)
PS/2® keyboard and mouse
Parallel port
Component x450 x455
Maximum memory (GB) 40 56
Active memory with hot-swap support No Yes
Multi chassis support No Yes (one, two or four
chassis)
Shared RXE-100 between 2 machines No Yes
Redundant cabling to RXE-100 (only
from a single independent machine) No Yes
Enterprise X-Architecture First generation
chipset Second generation
chipset
Important: The x455 does not have PS/2 ports for a keyboard and mouse.
Either a USB keyboard and mouse are required or the appropriate cables to
connect to a KVM switch.