Intel SC450NX - Server Platform - 0 MB RAM, Product Manual

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2 Baseboard Description
Baseboard Features
Table 3. Baseboard Features
Feature Description
Processor Installed: Up to four Pentium
®
II Xeon ™ processors, packaged in single edge
contact (S.E.C.) cartridges and installed in 330-pin Slot 2 processor
connectors, operating at 1.8 V to 3.5 V. The baseboard's voltage regulator is
automatically programmed by the processor's VID pins to provide the required
voltage.
Includes connectors for six VRM 8.3-compliant plug-in voltage-regulator
modules.
Memory, dynamic
random access (DRAM) Single plug-in module containing 64/72-bit four-way-interleaved pathway to
main memory supporting EDO DRAM.
Installed: 128 MB to 4 GB of error correcting code (ECC) memory.
Video memory (DRAM) Installed: 2 MB of video memory.
PCI Segment A bus
PCI Segment B bus PCI-A—Three expansion connectors and four embedded devices:
•
Programmable interrupt device (PID)
•
PCI/ISA/IDE Accelerator (PIIX4E) for PCI-to-ISA bridge, PCI IDE
interface, and Universal Serial Bus (USB) controller
•
PCI video controller (Cirrus Logic GD5480)
•
PCI narrow SCSI controller (Symbios
†
SYM53C810AE)
PCI-B—Four expansion connectors (one physically shared with the ISA slot)
and one embedded device:
•
Wide Ultra/Ultra II SCSI controller (Symbios SYM53C896)
ISA bus One expansion slot for add-in boards (shared with a PCI-B slot). Embedded
PC-compatible support (serial, parallel, mouse, keyboard, diskette).
Server Management Thermal/voltage monitoring and error handling.
Front panel controls and indicators (LEDs).
Graphics Integrated onboard Cirrus Logic GD5480 super video graphics array
(SVGA) controller.
SCSI Two embedded SCSI controllers:
Symbios SYM53C810AE—narrow SCSI controller on PCI-A bus providing
support for the legacy 8-bit SCSI devices in the 5.25-inch drive bays.
Symbios SYM53C896—dual-channel wide LVD/SE (Ultra2/Ultra)
SCSI controller on PCI-B bus driving one SCSI backplane in the system and
providing support for external expansion.
System I/O PS/2
†
-compatible keyboard and mouse ports, 6-pin DIN.
Advanced parallel port, supporting Enhanced Parallel Port (EPP) levels 1.7
and 1.9, ECP, compatible 25-pin.
VGA video port,15-pin.
Two serial ports, 9-pin (serial port A is the top connector).
Form Factor Form-factor, 13
×
16 inches, ATX I/O.