24V of Of A Power Supply

jamesdait · 06-22-04, 07:48 AM

I was just wondering if there was a way to get 24 volts out of a 300W power supply. If not would it be possible by putting two power supplies together.

Mr.Radar · 06-22-04, 10:47 AM

I think you can get 24v by putting two PSU's 12v rails together, but I'm no expert.

Nebuchadnazzar · 06-22-04, 11:49 AM

yea you can if the power supply has -12v, you hook the +12 and the -12v lines and you have 24 volt.
So it's like you replace the ground with -12v, i use this to run my comair rotron so i have the red wire hooked to +12v and the black(ground) wire hooked to the -12v.
Make sure you check the max watts on the -12v line because it's usually pretty low like 6 watts.

nosilverman · 06-22-04, 08:42 PM

Adding 2 12 volt lines wont work, i think all the 12 volt lines are connected inside the psu anyway. Using the +12 and -12 should work though. How do you find the -12v line?

Nebuchadnazzar · 06-23-04, 10:43 AM

The -12v line is only on the 20pin ATX connector and i think it's a blue wire, you could use a multimeter to check.

06-22-04, 07:48 AM	Thread Starter #1
jamesdait Registered Join Date: Jan 2002 Location: Australia	24V of Of A Power Supply I was just wondering if there was a way to get 24 volts out of a 300W power supply. If not would it be possible by putting two power supplies together.
	QUOTE Thanks

06-22-04, 10:47 AM	#2
Mr.Radar Member Join Date: Dec 2003 Location: Currently on a silent vacation from overclocking.	I think you can get 24v by putting two PSU's 12v rails together, but I'm no expert.
	QUOTE Thanks

06-22-04, 11:49 AM	#3
Nebuchadnazzar Member Join Date: Jun 2003 Location: Canada, Ottawa/Toronto	yea you can if the power supply has -12v, you hook the +12 and the -12v lines and you have 24 volt. So it's like you replace the ground with -12v, i use this to run my comair rotron so i have the red wire hooked to +12v and the black(ground) wire hooked to the -12v. Make sure you check the max watts on the -12v line because it's usually pretty low like 6 watts. __________________ New: i7 920 D0 @ 4.19?, ASUS P6T regular, MCP655->MCR220-QP-Stack->Swiftech GTZ Ci7->T-line, Patriot Viper 6GB DDR3-1600 @ 1033, BFG GTX 275, Corsair TX750W, Auzentech X-plosion to 5.1 receiver. Old: epox 9NDA3J w/ Venice 3200 @ 2500, Prime95 2 weeks stable, BFG 6800GT, 2x1gb OCZ platinum. File Server: ASUS M2A-VM, AMD X2 4000+, Crucial 1GB DDR2-667, As many hard drives as i can cram in.
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06-22-04, 08:42 PM	#4
nosilverman Member Join Date: Apr 2003 Location: New York, NY!	Adding 2 12 volt lines wont work, i think all the 12 volt lines are connected inside the psu anyway. Using the +12 and -12 should work though. How do you find the -12v line?
	QUOTE Thanks

06-23-04, 10:43 AM	#5
Nebuchadnazzar Member Join Date: Jun 2003 Location: Canada, Ottawa/Toronto	The -12v line is only on the 20pin ATX connector and i think it's a blue wire, you could use a multimeter to check. __________________ New: i7 920 D0 @ 4.19?, ASUS P6T regular, MCP655->MCR220-QP-Stack->Swiftech GTZ Ci7->T-line, Patriot Viper 6GB DDR3-1600 @ 1033, BFG GTX 275, Corsair TX750W, Auzentech X-plosion to 5.1 receiver. Old: epox 9NDA3J w/ Venice 3200 @ 2500, Prime95 2 weeks stable, BFG 6800GT, 2x1gb OCZ platinum. File Server: ASUS M2A-VM, AMD X2 4000+, Crucial 1GB DDR2-667, As many hard drives as i can cram in.
	QUOTE Thanks

24V of Of A Power Supply

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