VT82C686B
Hardware Monitoring
Signal Name
Pin # I/O Signal Description
U13
V13
W14
Y14
I
I
I
I
Monitor for CPU core voltage.
Monitor for North Bridge core voltage.
VSENS1
VSENS2
VSENS3
VSENS4
Voltage Sense 2.0V.
Voltage Sense 2.5V.
Voltage Sense 5V.
Voltage Sense 12V.
Connect +12V through a resistive voltage divider to insure 5V
max to the input pin (see MVP4 Design Guide for details).
T13
W13
Y13
T12
U12
V14
P
I
I
I
I
VREF
(2.48V ±5%)
Voltage Reference for Thermal Sensing
Temperature Sense 1.
Temperature Sense 2.
TSENS1
TSENS2
FAN1
FAN2
CHAS
(3.3V only)
Fan Speed Monitor 1.
Fan Speed Monitor 2.
(Func 0 Rx76[2] = 1). Used for system security purposes.
Chassis Intrusion Detect
/ GPIOB/9 / DTEST
/ GPIOC/10
/ IRQ0 / ATEST
/ FAN2 / GPIOB/9
I
U12
O
O
DTEST
ATEST
Hardware Monitor Digital Test Out
Hardware Monitor Analog Test Out
/ CHAS / GPIOC/10 V14
/ IRQ0
Revision 1.71 June 9, 2000
-24-
Pinouts
ETC [ ETC ]
