Table 14. Digital Multi-Meter Comparison; Table 15. System Voltage Rails - Intel BX80580Q9400 - Core 2 Quad 2.66 GHz Processor User Manual

Development Board Features

Table 14. Digital Multi-Meter Comparison

Sense Resistor Value:
Voltage Difference Across Resistor:
Calculated Power:
Agilent 34401A (6 ½ digit display)
Specification:
Min Voltage Displayed:
Calculated Power:
Max Voltage Displayed:
Calculated Power:
Error in Power:
As T able 14
2
versus a standard digital multi-meter is ~33 times more accurate.
T able 15
2
board. All sense resistors are 0.002Ω unless otherwise noted. Reference designators
marked with an asterisk are "not stuffed" on the board.

Table 15. System Voltage Rails

Component/
Interface
CPU VR
CPU VR
CPU VR
CPU VR
CPU
CPU
GMCH VR
GMCH VR
GMCH VR
GMCH VR
GMCH VR
GMCH VR
Development Kit User's Manual
EXAMPLE SYSTEM
(±0.0030% of reading)
+ (±0.0030% of range)
1.49193 mV
1.1129 mW
1.49206 mV
1.1131 mW
±0.009%
shows the precision achieved by using a high precision digital multi-meter
summarizes all the power measurement sense resistors located on the
Voltage
Plane
5 V +V5S
Battery +VBAT
1.05 V 6262_PHASE1
1.05 V 6262_PHASE2
1.05 V +V1.05S
1.5 V +V1.5S
Battery +VBATA
Battery +VBATA
Battery +VBAT
5 V +V5S
3.3 V +V3.3S_TVDAC
1.05 V 51124_LL2_L
0.002Ω
1.492 mV (746 mA)
1.113 mW
Fluke 79 (3 digit display)
Specification:
Min Voltage Displayed:
Calculated Power:
Max Voltage Displayed:
Calculated Power:
Error in Power:
Supply
+V5S_IMVP6
+VDC_PHASE
+VCC_CORE
+VCC_CORE
+V1.05S_CPU
+VCCA_PROC
1.05S_VIN
1.05M_VIN
GVR_VBAT
+V5S_GVR
+V3.3S_A_TV_DAC
+V1.05M
±0.09% ±2 digits
1.47 mV
1.08 mW
1.51 mV
1.14 mW
±0.3%
Rail Reference
Designator
R1B3
R1P6
R3D1
R2D1
R3U1* & R3F1*
R3T6 (0.01Ω)
R4G3
R4V10
R3V1
R3F5
R4U1
R4F2
43