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If you have an 24-pin ATX power supply, but want to install it to a legacy 20-pin motherboard. Now
you don't have to run out to purchase another power
supply. You can just use this adapter cable
to make your existing standard 24-pin ATX power supply work as a 20-pin
ATX power supply.
Adapter Cable length is 5 1/8"
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Standard ATX
Main Connector Pin-Out
| Pin |
Signal |
Wire Color |
Pin |
Signal |
Wire Color |
| 1 |
+3.3V |
Orange |
13 |
+3.3V
|
Orange
|
| 2 |
+3.3V |
Orange |
14 |
-12V |
Blue |
| 3 |
COM (GND) |
Black |
15 |
COM (GND) |
Black |
| 4 |
+5V |
Red |
16 |
Power On |
Green |
| 5 |
COM (GND) |
Black |
17 |
COM (GND) |
Black |
| 6 |
+5V |
Red |
18 |
COM (GND) |
Black |
| 7 |
COM (GND) |
Black |
19 |
COM (GND) |
Black |
| 8 |
Power Good |
Gray |
20 |
-5V
|
White |
| 9 |
+5Vsb |
Purple |
21 |
+5V |
Red |
| 10 |
+12V1 |
Yellow |
22 |
+5V |
Red |
| 11 |
+12V1 |
Yellow |
23 |
+5V |
Red |
| 12 |
+3.3V |
Orange |
24 |
COM (GND) |
Black |
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Connect to power supply's 24-pin main connector
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| Pin
| Name
|
| Color
| Pin |
Name |
|
Color |
|---|
| 1 | 3.3V |
| Orange | 11
|
3.3V |
|
Orange |
| 2 | 3.3V |
| Orange | 12
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-12V |
|
Blue |
| 3 | COM |
| Black | 13
|
COM |
|
Black |
| 4 | 5V |
| Red | 14
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/PS_ON |
|
Green |
| 5 | COM |
| Black | 15
|
COM |
|
Black |
| 6 | 5V |
| Red | 16
|
COM |
|
Black |
| 7 | COM |
| Black | 17
|
COM |
|
Black |
8
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PWR_OK |
|
Grey
|
18
|
-5V
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|
White
|
| 9 | 5VSB |
| Purple | 19
|
5V |
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Red |
| 10 | 12V |
| Yellow | 20
|
5V |
|
Red |
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Connect to motherboard's 20-pin power connector
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| USA & Worldwide
(Fulfilled by J.D.Research, Inc.)
|
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- Repair or Replace in 3-business Days -
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reserved.
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