34
Chapter 1 Server Description
SCSI Controllers
The system board includes two wide/fast-20 SCSI controller chips
integrated as PCI bus masters. These controllers support:
•
An 8-bit (narrow SCSI) data path at a data transfer rate of 20 MB/sec.
•
A 16-bit (wide SCSI) data path at a data transfer rate of 40 MB/sec.
•
Data transfer rates of 133 MB/sec as PCI bus masters.
•
The connection of a maximum of seven 8-bit narrow SCSI devices to
each controller.
•
The connection of a mixture of up to fifteen 16-bit wide and/or 8-bit
narrow SCSI devices to each controller (maximum of seven 8-bit narrow
devices).
The system board also includes a narrow SCSI controller integrated as a PCI
bus master. You can connect a maximum of seven narrow SCSI devices to
this controller.
The SCSI controllers provide active negation outputs, controls for external
differential transceivers, and a disk activity output. Active negation outputs
reduce the chance of data errors by actively driving both polarities of the
SCSI bus and avoiding indeterminate voltage levels and common-mode
noise on long cable runs. The SCSI output drivers can directly drive a
48 milliampere (mA), single-ended SCSI bus with no additional drivers.
IDE Controller
The PIIX4 multifunction device on the system board acts as a PCI-based Fast
IDE controller that supports
•
PIO and IDE DMA/bus master operations
•
Mode 4 timings
•
Transfer rates up to 32 MB/sec
•
Buffering for PCI/IDE burst transfers
•
Master/slave IDE mode
Summary of Contents for MB440LX
Page 1: ...Intel MB440LX System Installation Guide...
Page 6: ...1 6 Your Chapter Title Goes Here...
Page 16: ...16 Contents...
Page 26: ...26 Chapter 1 Server Description OM05793 Figure 1 4 Security Padlocks...
Page 48: ...48 Chapter 2 Installing The System...
Page 78: ...78 Chapter 3 Configuring The System...
Page 114: ...114 Chapter 4 Working Inside Your System OM05791A 1 2 3 Figure 4 19 Lithium Back up Battery...
Page 116: ...116 Chapter 4 Working Inside Your System OM05268 Figure 4 20 Removing the Front Panel Board...
Page 118: ...118 Chapter 4 Working Inside Your System OM05278 Figure 4 21 Front Panel Fans...
Page 127: ...M440LX Server System Product Guide 127 OM05771 Figure 4 26 Removing the Power Share Backplane...
Page 132: ...132 Chapter 4 Working Inside Your System...
Page 137: ...M440FX Server System Product Guide 137 OM06470 1 2 Figure 5 2 Installing a Hard Disk Drive...
Page 200: ...200 Chapter 9 I O Ports and Connectors...
Page 224: ...224 Chapter 10 Solving Problems...