Intel Desktop Board D945GRW BOXD945GRWLK User Manual

 63 

Table 28 lists the DC loading characteristics of the boards.  This data is based on a DC analysis of 
all active components within the board that impact its power delivery subsystems.  The analysis 
does not include PCI add-in cards.  Minimum values assume a light load placed on the board that is 
similar to an environment with no applications running and no USB current draw.  Maximum 
values assume a load placed on the board 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 board’s power delivery subsystems to the processor, memory, and USB ports. 

Use the datasheets for add-in cards, such as PCI, to determine the overall system power 
requirements.  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 speed. 

Minimum loading 

210 W 

3.6 A 

17.2 A 

8.7 A 

0.0 A 

0.3 A (S0) 
1.4 A (S3) 

Maximum loading 

310 W 

5.1 A 

24.6 A 

13.5 A 

0.0 A 

0.3 A (S0) 
1.44 A (S3)

The board is designed to provide 2 A (average) of +5 V current for each add-in board.  The 
D945GRW board has one add-in board slot (the PCI Express x16 slot).  The total +5 V current 
draw for add-in boards must not exceed 2 A.