Discussing ATX power issues, is it enough? - Techist - Tech Forum

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Old 08-03-2005, 09:52 PM   #1 (permalink)
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Default Discussing ATX power issues, is it enough?

Okay I just want to get a little talk, instead of building someone a PC

I think the ATX form factor power wise (and heat wise, but that's where BTX steps in) is vastly inaqquadarate. Specifications have stated that their is a maximum of 6 AMPS travelling thru a wire.

For a modern PC, they cannot supply enough power.

ATX 1.X version connector
3.3 Volt = 3 x 6 Amps = 18 Amps x 3.3 = 60 WATTS total
5 volt = 4 x 6 Amps = 24 Amps x 5 = 120 WATTS total
12 Volt = 2 x 6 Amps = 12 Amps x 12 = 144 WATTS
12 Volt 4 pin = 2 x 6 Amps = 12 Amps x 12 = 144 WATTS

Ok, we are by far bypassing what our Motherboard's are allowed to take in. This is causing the lead's to heat up. In a recent power supply test, they were pulling 3 times the power that allowed from the connectors causing them to heat up (And i believe resistance increases)

That power is not enough, expisally since we usually pull our power off one connector, used to be 5 volt but now we are using the 12 volt.

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Old 08-03-2005, 10:03 PM   #2 (permalink)
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Well, I see no harm in retaining the current SHAPE of the pieces. Cases for example, should remain the same for obvious reasons. I see no reason why they cannot come out with a new standard for power and things of that manner. Unless I'm missing something.



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Old 08-03-2005, 10:08 PM   #3 (permalink)
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Current shape is terrible for cooling and BTX adresses this
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