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EPS2U Power Supply Design Guide, V2.1
6.1.2 Baseboard power connector
STATUS
Required
Connector housing: 24-Pin Molex
39-01-2240 or equivalent
Contact: Molex
44476-1111 or equivalent
Table 7: P1 Baseboard Power Connector – Common Plane
Pin Signal 18 AWG Color Pin Signal 18 AWG Color
1 +3.3 VDC,
3.3RS
1
Orange,
Orange/white stripe
13 +3.3 VDC Orange
2 +3.3 VDC Orange 14 -12 VDC Blue
3 COM Black 15 COM Black
4 +5 VDC Red 16 PS_ON Green
5 COM Black 17 COM Black
6 +5 VDC Red 18 COM Black
7 COM Black 19 COM Black
8 PWR OK Gray 20 Reserved (-5 V in ATX) N.C.
9 5 VSB Purple 21 +5 VDC Red
10 +12 V2 Yellow/Blue Stripe 22 +5 VDC Red
11 +12 V2 Yellow/Blue Stripe 23 +5 VDC Red
12 +3.3 VDC Orange 24 COM Black
Table 8: P1 Baseboard Power Connector – Split Plane
Pin Signal 18 AWG Color Pin Signal 18 AWG Color
1
+3.3 VDC,
3.3RS
1
Orange,
Orange/white stripe
13 +3.3 VDC Orange
2 +3.3 VDC Orange 14 -12 VDC Blue
3 COM Black 15 COM Black
4 +5 VDC Red 16 PS_ON Green
5 COM Black 17 COM Black
6 +5 VDC Red 18 COM Black
7 COM Black 19 COM Black
8 PWR OK Gray 20 Reserved (-5 V in ATX) N.C.
9 5 VSB Purple 21 +5 VDC Red
10 +12 V3 Yellow/Blue Stripe 22 +5 VDC Red
11 +12 V3 Yellow/Blue Stripe 23 +5 VDC Red
12 +3.3 VDC Orange 24 COM Black
1. 3.3V remote sense signal double crimped with 3.3V contact.
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