PC ATX Power supply, start it without a PC

俺的 POWER SUPPLY 是好的, 因為顯示卡有問題, 所以從 ASUS P4P800 SE 的電腦拆下來當實驗用的直流電源, 因為要用它的 12V.

聽說過是可以連接某條線到 GND, 就不需要插到主機板也可啟動這個 ATX 電源. 拆開來看過, 裏面的 IC 是 2003. 跟下面那個的是一樣的
http://bbs.pigoo.com/redirect.php?tid=14018&goto=lastpost

實驗, 錄色的線 (PS_ON#) 接地 (GROUND), 確定這樣 ATX POWER SUPPLY 就開始提供 12V 電力.




詳細看看
http://en.wikipedia.org/wiki/ATX

PS_ON# or "Power On" is a signal from the motherboard to the
power supply. When the line is connected to GND (by the motherboard),
the power supply turns on. It is internally pulled up to +5 V inside the
power supply.^[8][9]

24-pin ATX12V 2.x power supply connector
(20-pin omits the last four: 11, 12, 23 and 24)

Color	Signal	Pin	Pin	Signal	Color
Orange	+3.3 V	1	13	+3.3 V	Orange
				+3.3 V sense	Brown
Orange	+3.3 V	2	14	−12 V	Blue
Black	Ground	3	15	Ground	Black
Red	+5 V	4	16	Power on	Green
Black	Ground	5	17	Ground	Black
Red	+5 V	6	18	Ground	Black
Black	Ground	7	19	Ground	Black
Grey	Power good	8	20	Reserved	N/C
Purple	+5 V standby	9	21	+5 V	Red
Yellow	+12 V	10	22	+5 V	Red
Yellow	+12 V	11	23	+5 V	Red
Orange	+3.3 V	12	24	Ground	Black
Pins 8, 13, and 16 (shaded) are control signals, not power: "Power On" is pulled up to +5V by the PSU, and must be driven low to turn on the PSU. "Power good" is low when other outputs have not yet reached, or are about to leave, correct voltages. The "+3.3 V sense" line is for remote sensing.[7] Pin 20 (formerly −5V, white wire) is absent in current power supplies; it was optional in ATX and ATX12V version 1.2, and deleted as of ver. 1.3.