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What is the difference between an ATX and ATX12v Power Supply?

Discussion in 'Hardware' started by AhrenBa, Jun 23, 2006.

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  1. AhrenBa

    AhrenBa Thread Starter

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    Hello,
    I am looking to buy a new PSU. What is the difference between an ATX and ATX12v? And, how do I know which one I need? Thanks
     
  2. AhrenBa

    AhrenBa Thread Starter

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    Anyone?
     
  3. pugmug

    pugmug Banned

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  4. AhrenBa

    AhrenBa Thread Starter

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    Awesome! Thank you. That helps explain it a lot better!

    In another post I had, I confirmed that a Dell 4700 could use an industry standard power supply. However, I noticed that the current power supply (from Dell) does not use the 20th pin on the mainboard connector which is the -5v pin, where as most PSU do. Someone was telling me that the -5v pin did not matter, but will it still effect the Dell, since it doesn't use it?

    What should I do about this? What does the "-" sign mean anyways (before the voltage rating)? Will it hurt if the new PSU does have this pin? Thanks
     
  5. Triple6

    Triple6 Moderator

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    - is for negative.
     
  6. AhrenBa

    AhrenBa Thread Starter

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    Yes, but I mean what is the difference between the + and the -. Does the + bring power to the motherboard and the - take it away to somewhere else?

    Since Dell does not have a pin #20 (-5v), will it effect anything? Is there a way to get around it if it does? Thanks
     
  7. pugmug

    pugmug Banned

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  8. AhrenBa

    AhrenBa Thread Starter

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    Lol, I knew I would get burned for asking this. But wouldn't you guys get more mad if I re-opened the other thread? Plus this is a different question :). Thanks for the help though.
     
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