Intel Core i7 Extreme Edition, Datasheet

Page: 15 / 102

Datasheet 15
Electrical Specifications
The processor uses eight voltage identification signals, VID[7:0], to support automatic
selection of voltages. Table 2-1 specifies the voltage level corresponding to the state of
VID[7:0]. A ‘1’ in this table refers to a high voltage level and a ‘0’ refers to a low
voltage level. If the processor socket is empty (VID[7:0] = 11111111), or the voltage
regulation circuit cannot supply the voltage that is requested, the voltage regulator
must disable itself.
The processor provides the ability to operate while transitioning to an adjacent VID and
its associated processor core voltage (V
CC
). This will represent a DC shift in the
loadline. It should be noted that a low-to-high or high-to-low voltage state change will
result in as many VID transitions as necessary to reach the target core voltage.
Transitions above the maximum specified VID are not permitted.
Table 2-8 includes VID
step sizes and DC shift ranges. Minimum and maximum voltages must be maintained
as shown in
Table 2-8 .
The VR used must be capable of regulating its output to the value defined by the new
VID. DC specifications for dynamic VID transitions are included in
Table 2-7 and
Table 2-8 .
Table 2-1. Voltage Identification Definition (Sheet 1 of 3)
VID
7
VID
6
VID
5
VID
4
VID
3
VID
2
VID
1
VID
0
V
CC_MAX
VID
7
VID
6
VID
5
VID
4
VID
3
VID
2
VID
1
VID
0
V
CC_MAX
0 0 0 0 0 0 0 0 OFF 0 1 0 1 1 0 1 1 1.04375
0 0 0 0 0 0 0 1 OFF 0 1 0 1 1 1 0 0 1.03750
0 0 0 0 0 0 1 0 1.60000 0 1 0 1 1 1 0 1 1.03125
0 0 0 0 0 0 1 1 1.59375 0 1 0 1 1 1 1 0 1.02500
0 0 0 0 0 1 0 0 1.58750 0 1 0 1 1 1 1 1 1.01875
0 0 0 0 0 1 0 1 1.58125 0 1 1 0 0 0 0 0 1.01250
0 0 0 0 0 1 1 0 1.57500 0 1 1 0 0 0 0 1 1.00625
0 0 0 0 0 1 1 1 1.56875 0 1 1 0 0 0 1 0 1.00000
0 0 0 0 1 0 0 0 1.56250 0 1 1 0 0 0 1 1 0.99375
0 0 0 0 1 0 0 1 1.55625 0 1 1 0 0 1 0 0 0.98750
0 0 0 0 1 0 1 0 1.55000 0 1 1 0 0 1 0 1 0.98125
0 0 0 0 1 0 1 1 1.54375 0 1 1 0 0 1 1 0 0.97500
0 0 0 0 1 1 0 0 1.53750 0 1 1 0 0 1 1 1 0.96875
0 0 0 0 1 1 0 1 1.53125 0 1 1 0 1 0 0 0 0.96250
0 0 0 0 1 1 1 0 1.52500 0 1 1 0 1 0 0 1 0.95626
0 0 0 0 1 1 1 1 1.51875 0 1 1 0 1 0 1 0 0.95000
0 0 0 1 0 0 0 0 1.51250 0 1 1 0 1 0 1 1 0.94375
0 0 0 1 0 0 0 1 1.50625 0 1 1 0 1 1 0 0 0.93750
0 0 0 1 0 0 1 0 1.50000 0 1 1 0 1 1 0 1 0.93125
0 0 0 1 0 0 1 1 1.49375 0 1 1 0 1 1 1 0 0.92500
0 0 0 1 0 1 0 0 1.48750 0 1 1 0 1 1 1 1 0.91875
0 0 0 1 0 1 0 1 1.48125 0 1 1 1 0 0 0 0 0.91250
0 0 0 1 0 1 1 0 1.47500 0 1 1 1 0 0 0 1 0.90625
0 0 0 1 0 1 1 1 1.46875 0 1 1 1 0 0 1 0 0.90000
0 0 0 1 1 0 0 0 1.46250 0 1 1 1 0 0 1 1 0.89375
0 0 0 1 1 0 0 1 1.45625 0 1 1 1 0 1 0 0 0.88750
0 0 0 1 1 0 1 0 1.45000 0 1 1 1 0 1 0 1 0.88125
0 0 0 1 1 0 1 1 1.44375 0 1 1 1 0 1 1 0 0.87500
0 0 0 1 1 1 0 0 1.43750 0 1 1 1 0 1 1 1 0.86875
0 0 0 1 1 1 0 1 1.43125 0 1 1 1 1 0 0 0 0.86250
0 0 0 1 1 1 1 0 1.42500 0 1 1 1 1 0 0 1 0.85625