User Guide

xvi AcerAltos 21000 System Guide
System Architecture
4
64bit @ 100MHz GTL
+
Deschute FSB 800MB/s
64bit @ 100MHz GTL
+
Deschute FSB 800MB/s
Xeon-CPU2
512K/1M/2M Cache
450NX
MIOC
Xeon-CPU3
512K/1M/2M Cache
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
2/4 Way Interleave ECC Memory
800MB
/
s
RCGs + MUXs
Xeon-CPU1
512K/1M/2M Cache
Xeon-CPU4
512K/1M/2M Cache
F16 Bus 400MB/s
PCI Ex
p
ander
Brid
g
e
PCI Ex
p
ander
Brid
g
e
Dual
Ultra2
5
PCI Bus
1
PCI Bus
1
32
bit
PCI
Slot * 4
PIIX4e
PIIX4e
PCI Bus
0
32 bit PCI
Slot * 3
A.S.M.
R.D.M.
S I/O
1
2
I/O
APIC
I/O
APIC
BIOS
BIOS
ISA
Slot*1
3
6
7
KBC
KBC
CD-ROM
BMIDE HDD
USB
VGA
VGA
LAN
LAN
64bit @
100MHz GTL +
16
bit @ 200MHz
133MB/s
133MB/s
The system includes a main and memory subsystems with four Slot 2
processors and voltage regulators for the processors. The memory
subsystem runs in 100 MHz timing and has a maximum size of up to
4GB.
Six PCI and 1 PCI/ISA shared slots are also incorporated for fast
expandable I/O capabilities.
There are two LVD SCSI (Ultra-2) channels for high performance
storage devices and one Narrow SCSI channel for backup (i.e., tape
drives) or CD-ROM devices.
A high-speed 10/100Mbit Ethernet controller and a PCI VGA device
are also provided.
For more information about the main board see section 3.1.