The pSeries 630 is a one- to four-way symmetric multiprocessor (SMP) server featuring POWER4™ technology. It is available in two packages: the Model 6C4 is an industry-standard drawer for rack mounting; the Model 6E4 is a compact deskside unit.

The Model 6C4 is an industry-standard four EIA Unit (4U)2 drawer, designed to provide maximum power in a "rack and stack" environment. It can easily be installed in a 19-inch IBM or OEM rack. Up to nine Model 6C4 servers may be installed in an IBM 7014 Model T00 36U rack.

The Model 6E4 is a compact deskside unit, just 6.8 inches wide and 24 inches deep, and fits ideally in an office environment.

Each server features one, two or four POWER4+ processors running at 1.2 or 1.45GHz. Memory can be expanded from 1GB to 32GB. There are two integrated 10/100 Mbps Ethernet controllers, as well as three serial ports and one parallel port. And both models come with a choice of standard 110 or 220 volt auto-ranging AC power. Hot-plug -48 volt DC power is optionally available for the Model 6C4.

The pSeries 630 provides excellent expandability. There are four hot-swappable disk bays that can accommodate 18.2GB, 36.4GB, 73.4GB or 146.8GB drives, for total internal disk storage capacity of up to 587.2GB. There are also two media bays that can contain a CD-ROM, DVD-ROM, DVD-RAM, diskette or tape drive. Six 133MHz hot-plug PCI-X slots are included to support most pSeries 32- and 64-bit expansion adapters.

The Model 6C4 also allows the attachment of up to two 7311 Model D20 rack-mount I/O drawers for even greater expandability. Each high-density drawer adds an additional seven 133MHz hot-plug PCI-X slots and, optionally, 12 hot-swappable disk bays. The maximum internal disk storage capacity on the Model 6C4 is 4.1TB, an astounding figure for an entry server.