PC 파워서플라이 전압과 용도

PC 시스템 전원: +12V, +5V, +3.3V, -12V, +5Vsb

 

-12V, +5Vsb는 더이상 사용되지 않음.

 

+12V: CPU, M/B Chipset, VGA, Fans, PCI-E버스, 3.5인치 HDD

 

+5V: 3.5인치 HDD, 2.5인치 HDD, PCI-E버스, USB버스

 

+3.3V: RAM, M.2 SSD, PCI-E버스

 

전압별 Device의 소모전력 추정치

	+12V[W]	+5V[W]	+3.3V[W]
CPU	45~250	0	0
RAM	0	0	3
M/B Chipset	<10	0	<10
VGA	100~300	0	0
USB	0	<5	0
3.5 HDD	8	<3	0
2.5 HDD	0	<3	0
M.2 SSD	0	0	<5
HBA	<15	0	0

 

 

출처

1. https://itigic.com/voltages-of-12v-5v-and-3-3v-for-each-component/

2. https://www.quora.com/In-terms-of-amperage-how-much-power-is-required-for-a-7200-rpm-SATA-3-5-mechanical-hard-drive-to-operate-correctly-How-many-amps-over-this-would-be-enough-to-damage-the-drive

3. http://www.hwbattle.com/bbs/board.php?bo_table=hardwareboard&wr_id=45975&sfl=mb_id%2C1&stx=turtl&sop=and

4. http://www.hwbattle.com/bbs/board.php?bo_table=hardwareboard&wr_id=46785