Technical Reference
Dual-Core Intel® Xeon® Processor LV and Intel
®
3100 Chipset
User’s Manual
January 2007
48
Order Number:315879-002
3.9
Electrical Considerations
3.9.1
DC Loading
Table 18
lists the DC loading characteristics of the CRB. This data is based on a DC
analysis of all active components within the CRB that impact its power delivery
subsystems. The analysis does not include PCI add-in cards. Minimum values assume a
light load placed on the CRB that is similar to an environment with no applications
running and no USB current draw. Maximum values assume a load placed on the CRB
that is similar to a heavy gaming environment with a 500 mA current draw per USB
port. These calculations are not based on specific processor values or memory
configurations but are based on the minimum and maximum current draw possible
from the CRB’s power delivery subsystems to the processor, memory, and USB ports.
Refer to the datasheets for overall system power requirements of the add-in cards
(e.g., PCI). The selection of a power supply at the system level is dependent on the
system’s usage model and not necessarily tied to a particular processor.
Figure 35.
Form Factor
12”
10.
75”
DDR2 Memory
Dimms
Intel® 3100
Chipset
Processor
Back Panel Connectors
Power connectors
SATA
Connectors
FWH
PCI Express*
Ports
PCI
Port
