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Switching ON an ATX power supply (when it's not connected to mobo) ?



 
 
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Old April 18th 04, 03:44 PM
Paul
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Default Switching ON an ATX power supply (when it's not connected to mobo) ?

In article , wrote:

Huang wrote:


Hi! does anyone here know how you can turn an ATX power supply ON when
it is not connected to the mobo? I remember reading somewhere that we
must touch (short) the blue and white wire together for a moment.....
And to OFF the ATX supply, we must again short the blue and white
wires for 3 to 5 seconds? Can anyone confirm? A perfectly functional
motherboard or CPU can be damaged if the 3V, 5V and 12V lines are
wildly off their mark and it is prudent to check the PSU out of
circuit before connecting.

TIA


I use one of these:

http://www.cyberguys.com/templates/s...sp?T1=113+0282

If you like glowing LEDs, try one of these :-)

http://www.dansdata.com/quickshot018.htm

At least the circuit card would give you a base to connect more
load resistors if you want.

Soldering a fan to the +12V on the circuit board will also give
you a supply of cooling air to blow over the resistors. I
have some load resistors at home for testing ATX supplies and
they get pretty hot - an 80mm fan keeps them from frying. You
have to work out the ohms needed and power dissipation required
for each load you construct.

Paul
 




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