Building a new system, could use some advice.

[RoConno]

I'm putting together a new system with some old and some new parts. I have a 300watt ATX PSU but it doesn't have the 4 port ATX12v power plug and my new ECS RS400-A Mobo has a port for it. Is it required for the mobo to operate properly?

Thanks for any help!

 

[pelos66]

New MOBOS come with two power supply connectors
the standard one that looks like this:

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oooooooo

And a new one that is squared:

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If it came with it, yes, you need a PSU that came with that power cable, otherwise your computer wont even boot.

 

[RoConno]

Thanks pelos66! Looks like I'll have to get a new PSU.
Thanks for the help.

 

[RoConno]

I picked up a new Antec Smart 350 PSU and installed it. now everything is working just fine.
Thanks for your help!

 

[bjp999]

You can buy a splitter cable that will provide the 12v 2x2 cable from a 4 pin molex. For an older computer, I think it would work fine. About $5.

 

[UMfanatic]

actually the newest motherboards have a 24 pin socket and a 4 pin 12v socket, some have 8 supposedly, my PSU came with an adapter for it, but I cant say I have ever seen one with an 8pin 12v socket