Question power supply atx 20 pin vs 24

nawabkhan_u

Honorable
Sep 24, 2014
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How many watts does a atx 20 pin connector have?
when i read on a website that pci express slot draws 75 watts from the main 20 pin atx connector.
Then how much power left by this atx connector to use for all other motherboard component?
difference between 20 pin atx connector vs 24 pin while comparing the total power draws?
 

Vic 40

Polypheme
Ambassador
Hard to say anything without knowig what system you are talking about. Sounds like you wnat to try and use a psu with 20pin on a board with 24 pin connector.

Some psu specs can be found here,
ATX -specs/ Wikipedia, the free encyclopedia
seems that the extra pins are 2 x +12V cables, might be for more modern systems that are capable of sli/crossfire or maybe usb3 that can provide more power amongst things that can use +12V.
 

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