General Information 1-7
Hardware Interfaces
The following peripheral interfaces for adapters, options, and drives are
supported in the system unit.
Table 1- 1 System Board Hardware Interfaces
Item Interface
Expansion slot
for I/O adapter
cards
Machine Type 2153:
One PCI (peripheral component interconnect) v2.1
compatible expansion slots that operates at 33 MHz
bus speed for K6 and two PCI for Celeron
Two IBM AT-ISA Plug and Play compatible expansion
slots that operates at 8 MHz bus speed.
Note: 1 PCI/1ISA slot share and 1 ISA independent slot
Machine Type 2139:
Three PCI v2.1 compatible expansion slots that
operates at 33 MHz bus speed
Two IBM AT-ISA Plug and Play compatible expansion
slots that operates at 8 MHz bus speed. 1 PCI/ISA
share.
Hard disk drives
Two PCI local bus Enhanced IDE v1.0 compatible hard
disk drive interfaces that support PIO mode up to mode
5 , DMA 32-bit access up to mode 2 and Ultra 33
Synchronous DMA up to mode 2 (33M bytes/sec).
CD/DVD-ROM
drive
5.25-in. high-performance, twenty four-speed (24X)
and thirty two-speed (32X) C D-ROM IDE/AT drive
(only for 2153)
Support Bootable CD-ROM Format specification
version 1.0.
Compliant to Audio-CD, Video-CD, CD-ROM/XA,
Karaoke-CD, and Photo-CD (both single and multi-
session) format.
DVD 2X (for both 2139 and 2153)
Diskette drive AT diskette interface
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