Intel Pentium III Processor/840, Manual, Page: 40 / 151

4-4 Intel
®
Pentium
®
III Processor/840 Development Kit Manual
Hardware Reference
Table 4-4 shows the signals assigned to the third WTX-style power connector (J1T4).
Table 4-4. Secondary Power Connector Pinout (J3P1)
Pin Signal Name Function
1 5 V Sense 5 V Remote Sense
2 3.3 V Sense 3.3 V Remote Sense
3 RES No Connection
4 GND Ground
5 GND Ground
6 12 V 12 V
7 -12 V -12 V
8 I2C Clock No Connection
9 Fan C No Connection
10 PS-OK Voltages within acceptable ranges
11 1394 No Connection
12 5 V Rtn 5 V Sense Return
13 3.3 V Rtn 3.3 V Sense Return
14 RES No Connection
15 GND Ground
16 12 V 12 V
17 12 V 12 V
18 Sleep Sleep Control
19 I2C Date No Connection
20 Fan M No Connection
21 PS-ON# Remote ON/OFF Control
22 1394 Rtn No Connection
Table 4-5. Third Power Connector Pinout (J1T4)
Pin Signal Name Function
1 12 V_DIG D2D 12 V supply
2 12 V_DIG D2D 12 V supply
3 12 V_DIG D2D 12 V supply
4 No Connection Reserved
5 GND Ground
6 GND Ground
7 GND Ground
8 No Connection Reserved