Motherboard Components
Note: Interleaved ECC registered memory type must be installed in pairs: slots 18 + 19 and 20 + 21.
*
33
31
29
34
11
12
30
5
4
2
3
28
27
26
25
23
1
15
14
13
35
19
18
10
32
7
6
8
9
24
22
21
20
16
36
37
38
17
28
JP68
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
36
JP58
37
JP62
38
JP64
39
RAID port
1
System board
2
COM2 header
3
JA2, JA4 SCSI termination
4
BIOS chip
5
JP73
6
JP56
7
JBT1
8
Ultra160 LVD SCSI Ch A
9, 10
IDE #1, IDE#2 connector
11
Chassis fan
12,
CPU2 chassis fan
13
CPU1 chassis fan
14
Chassis fan
15
JP65 THRM fan
16
JF1 control panel header
17
JP72
18,19 *
Bank 0 memory modules
20, 21 *
Bank 1 memory modules
22
Primary power connector
23
Mouse and keyboard ports
24
2 USB ports
25
COM1 header
26
VGA header
27
LAN1, LAN2
39
Quick Reference
CPU Core/
Bus Ratio
**
500-666
555-733
600-800
650-866
700-933
750-1000
800-1064
850-1130
900-1200
950-1260
1000-1330
1050-1400
SW1
#4
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
ON
SW1
#3
OFF
OFF
ON
ON
ON
ON
OFF
ON
ON
ON
OFF
OFF
SW1
#2
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
OFF
ON
ON
ON
SW1
#1
ON
OFF
ON
OFF
ON
OFF
ON
ON
OFF
OFF
OFF
ON
CPU Core/Bus Ratio Selection
(DIP Switch 1)
Jumpers
Description
Default Setting
JA2
LVD SCSI Ch A term. Open (Enabled)
JA4
LVD SCSI Ch B term. Open (Enabled)
JBT1
CMOS clear
Pins 1-2 (Normal)
JP1 FSB speed setting Pins 1-2 (Auto)
JP3 Spread spectrum Open (Disabled)
JP56
Speaker enable/disable Closed (Enabled)
JP58
LAN1 enable/disable Pins 1-2 (Enabled)
JP62
LAN2 enable/disable Pins 1-2 (Enabled)
JP64 SCSI enable/disable Pins 1-2 (Enabled)
JP65 Thermal fan enable/disable Closed (Enabled)
JP68
VGA enable/disable Pins 1-2 (Enabled)
JP72
CPU/CPU chassis fan select Open (Chassis Fan)
JP73
Watchdog enable/disable Open (Disabled)
**
Number on left is for 100 MHz FSB speed and number on right
is for 133 MHz FSB speed
