Dual-Core Intel® Xeon® Processor LV and Intel
®
3100 Chipset
January 2007
User’s Manual
Order Number: 315879-002
47
Technical Reference
3.8
Mechanical Considerations
3.8.1
Form Factor
The CRB is designed to fit into an ATX-form-factor chassis.
Figure 35
illustrates the
mechanical form factor for the CRB. Dimensions are given in inches. The outer
dimensions are 10.75 inches by 12 inches, which means that the CRB is actually about
an inch longer in depth measuring from the back panel across. Location of the I/O
connectors and mounting holes correlate with the ATX specification.
GG
Board EEPROM SMBUS
Segment
J2G4
SMBUS Access Header
1: SMB_DATA
2: GND
3: SMB_CLK
Open
Do not short
AA
DIMM SMBUS Segment
J2G7
SMBUS Access Header
1: SMB_DATA
2: GND
3: SMB_CLK
Open
Do not short
NN
5.0 V Header
J1A2
1: Ground
2: 5.0 V
Open
Do not short
A
3.3 V Header
J1A1
1: Ground
2: 3.3 V
Open
Do not short
B
5.0 V Standby Header
J3A1
1: Ground
2: 5.0 V Standby
Open
Do not short
Y
1.05 V Header
J4G1
1: Ground
2: 1.05 V
Open
Do not short
W
CPU V
CC
Header
J4K1
1: Ground
2: CPU_VCC
Open
Do not short
C
1.5 V Header
J4C2
1: 1.5 V
2: Ground
Open
Do not short
Q
VCC1.8
J9K1
1.1.8 V
2.Ground
Open
Do not short
Table 17.
Jumper Block Locations (Sheet 3 of 3)
Location
Jumper/Header Name
Ref Des
Description
Default
Position