Chapter 2 Connecting peripherals
23
+5 V
0 V
+5 V Lower-limit
0 V
+5 V
Upper-limit
0 V
+5 V Upper-limit
Lower-limit
0 V
CPU temperature alarm output (J8)
The EBM3x-JA provides three bits for CPU temperature overheat
alarm output: TL, TH, and TCOM. These signals are used to enable
the external alarm device. The following chart shows each pin
assignment and their respective waveform.
CPU temperature alarm output (J8)
Pin
Function
Waveform
1
TH
TCOM
case 1:
2
temperature rising
case 2:
temperature falling
3
TL
4 Ground
The upper and lower limit values are set in BIOS. See Chapter 4.
