Dual-Core Intel® Xeon® Processor LV and Intel
®
3100 Chipset
January 2007
User’s Manual
Order Number: 315879-002
45
Technical Reference
Table 17.
Jumper Block Locations (Sheet 1 of 3)
Location
Jumper/Header Name
Ref Des
Description
Default
Position
D
CMOS Clear Jumper
J4C3
Clears CMOS
1-2: Normal
2-3: Clear
1-2
X
FSB Clock Frequency Override
(Host Clock Jumper)
J4G2
Open
166 MHz
2-3
F
Intel
®
3100 Chipset PLLSEL0
Jumper
J7A3
1-2
133 MHz
Open
Open
100 MHz
OO
Enable Video Jumper
J2A1
Enable on Board Video
1-2: Enable
Open: Disable
1-2
M
Processor Fan Override Jumper
J8H1
1-2: Full Speed
Open: Heceta* Controlled
1-2
T
Intel
®
3100 Chipset Fan
Override Jumper
J7G2
1-2: Full Speed
Open: Heceta* Controlled
1-2
CC
FWH VPP Jumper (validation
Only)
J2H2
1-2: Normal
Open: N/A
1-2
N
CPU0 VID Override Jumper
J8J1
Manual VID Select
1-2: Manual Select
Open: CPU Select
Open
N
CPU0 VID Jumper
Short = 0; Open = 1
J8J2
VID[5]
VID[4]
VID[3]
VID[2]
VID[1]
VID[0]
Open
1-2
3-4
5-6
7-8
9-10
11-12
E
Intel
®
3100 Chipset internal
1.5 VR enable
J4C5
1-2: Disable Intel
®
3100 Chipset 1.5 V VR
Open: Enable Intel
®
3100 Chipset 1.5 V VR
Open
H
Software Configuration Port
Address Jumper
J7B2
1-2: 0x2E / 0x2F
Open: 0x4E / 0x4F
Open
G
Test Mode Jumper
J7B1
1-2: Test Mode
Open: Normal
Open
JJ
Top Swap Jumper
J3D2
1-2: A16 Top Swap
Open: Normal
Open
KK
BIOS Destination Jumper
J3D1
1-2: Offset
Open: Normal
Open
DD
Top Block Lock Jumper
J1G1
1-2: FWH Top Block Lock
Open: Normal
Open
LL
Watch Dog Timer (WDT) Board
Reset
J3C1
1-2: WDT Triggers Board Reset
Open: WDT Triggers LED Only
Open
HH
No Reboot Jumper
J4D2
1-2: No Reboot
Open: Normal
Open
S
V
CCA
Voltage Select Jumper
J7G3
1-2: CPU_VCCA = 1.5 V
2: CPU_VCCA = 1.8 V
Open
