Intel Pentium III Processor/840, Manual, Page: 39 / 151

Intel
®
Pentium
®
III Processor/840 Development Kit Manual 4-3
Hardware Reference
4.8 Connector Pinouts
4.8.1 WTX Power Connector
Table 4-3 shows the signals assigned to the WTX-style main power connector (J3M1).
Table 4-4 shows the signals assigned to the WTX-style secondary power connector (J3P1).
Table 4-3. Main Power Connector Pinout (J3M1)
Pin Signal Name Function
1 3.3 V 3.3 V
2 3.3 V 3.3 V
3 3.3 V 3.3 V
4 3.3 V 3.3 V
5 3.3 V 3.3 V
6 GND Ground
7 GND Ground
8 GND Ground
9 GND Ground
10 GND Ground
11 5 V 5 V VVC
12 5 V 5 V VVC
13 3.3 V 3.3 V
14 3.3 V 3.3 V
15 3.3 V 3.3 V
16 3.3 V 3.3 V
17 3.3 V_SB Standby 3.3 V
18 GND Ground
19 GND Ground
20 GND Ground
21 GND Ground
22 5 V_SB Standby 5 V
23 5 V 5 V VCC
24 5 V 5 V VCC