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Main => Main Forum => Topic started by: robot8319 on November 03, 2006, 12:55:44 am

Title: can i hook up a pc power supply in my jamma cabinet??
Post by: robot8319 on November 03, 2006, 12:55:44 am

hey guys i wanna know if i can use a pc power supply as a replacement for a switching power supply??

i have plenty of pc atx psu's laying around can i use them instead of buying an arcade psu??

if so how can i do that is there is diagrams i should follow..

Title: Re: can i hook up a pc power supply in my jamma cabinet??
Post by: AlanS17 on November 03, 2006, 12:59:19 am

I guess it depends on the game you intend to use it for. Typically speaking, though, no. I don't think a PC's power supply will give the -5V that a lot of games need.

Title: Re: can i hook up a pc power supply in my jamma cabinet??
Post by: robot8319 on November 03, 2006, 01:01:34 am

can i please have the wiring diagram..

Title: Re: can i hook up a pc power supply in my jamma cabinet??
Post by: AlanS17 on November 03, 2006, 01:06:50 am

That depends completely on the form factor of the PC power supply. There are several.

Title: Re: can i hook up a pc power supply in my jamma cabinet??
Post by: robot8319 on November 03, 2006, 01:11:20 am

its an atx standard.psu..can u point me to the diagram please if there is one..

Title: Re: can i hook up a pc power supply in my jamma cabinet??
Post by: spacies on November 03, 2006, 01:20:40 am

Google it.

BTW, there is no -5V.
Be careful.

Title: Re: can i hook up a pc power supply in my jamma cabinet??
Post by: CheffoJeffo on November 03, 2006, 07:18:49 am

Check JABBA's Supergun page -- he talks about cnonnecting a PC power supply to a JAMMA rig:

http://www.jabba.demon.co.uk/retroranch/

Direct link to the Microsot Word DOC containing his instructions:

http://www.jabba.demon.co.uk/retroranch/building_a_jamma_test_rig.doc

NOTE: Don't rely on wire colours -- use a multmeter to test voltages!

Cheers.

Title: Re: can i hook up a pc power supply in my jamma cabinet??
Post by: newf112 on November 03, 2006, 01:07:14 pm

Quote from: spacies on November 03, 2006, 01:20:40 am

Google it.

BTW, there is no -5V.
Be careful.

Sorry to just jump in... long time lurker, only posted a couple of times...

PC power supplies do have -5v, not off the connectors to components (hd, cdrom, etc)
but there is -5v on the motherboard connector...

Here's the motherboard connector pinout for an AT power supply...
http://pinouts.ru/Power/MotherboardPower_pinout.shtml

Cheers,
newf.

Title: Re: can i hook up a pc power supply in my jamma cabinet??
Post by: AlanS17 on November 03, 2006, 01:12:11 pm

That's an outdated AT power supply, though. What about ATX?

Title: Re: can i hook up a pc power supply in my jamma cabinet??
Post by: CheffoJeffo on November 03, 2006, 01:15:06 pm

Quote from: AlanS17 on November 03, 2006, 01:12:11 pm

That's an outdated AT power supply, though. What about ATX?

FWIW, I would use an AT over an ATX in this application everytime. No need to short pins.

But, here is the ATX pinout:

http://xtronics.com/reference/atx_pinout.htm

Cheers