25
VGA header
26
LAN1
27
LAN2
28
Onbard VGA (Disable/Enable) JP60,61
29
Ultra160 LVD SCSI Ch B
30
PCI Riser Card
31
SW1
32
Floppy connector
33
JP1, JP3 header
34
CPU#2 Socket
35
CPU#1 Socket
1
System Board
2
COM2 Header
3
SCSI Termination
4
BIOS Chip
5
JP57
6
JP56 on Board Speaker Disable/Enable
7
JBT1
8
Overheat Fan Header
9
Ultra160 LVD SCSI Ch A
10
IDE #1 connector
11
IDE #2 connector
12
Chassis Fan
13
Chassis Fan
14
OH
Fan
15
JF1 Control Panel Header
16
Power LED Header
17,18 *
Bank 0 Memory Modules
19,20 *
Bank 1 Memory Modules
21
Primary Power Connector
22
Mouse and Keyboard connectors
23
2 USB ports
24
COM1 header
Motherboard Components
33
31
29
34
11
12
30
5
4
2
3
28
27
26
25
23
1
17
15
14
13
35
19
18
10
32
7
6
8
9
24
22
21
20
16
Quick Reference
Jumpers
Description
Default Setting
JA2
LVD SCSI Ch A Term. Open (Enabled)
JA4
LVD SCSI Ch B Term. Open (Enabled)
JBT1
CMOS Clear
Pin 1-2 (Normal)
JP1
FSB Speed Setting Open (133 MHz)
JP56
Speaker Enble/Disble On (Enabled)
JP57
BIOS Select Pin 1-2 (BIOS1)
JP58
LAN1 Enable/Disable Off (Enabled)
JP60
VGA Enable/Disable Pin 2-3 (Enabled)
JP61
VGA Interrupt Enable Pin 2-3 (Enabled)
JP62
LAN2 Enable/Disable Off (Enabled)
JP63
Chipset Speed Setting Off (133 MHz)
JP64
SCSI Enable/Disable Pin 1-2 (Enabled)
CPU Core/
Bus Ratio
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
SW1
#4
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
SW1
#3
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
SW1
#2
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
SW1
#1
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Note: Interleaved ECC registered memory type must be installed in pairs: 17,18 and 19 , 20 especially.
*
CPU Core/Bus Ratio Selection
(DIP Switch 1)