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RoboTech · 03-19-2003, 07:02 AM

Hey PKR,

No guarantees, but it's worth a try...

Placing a 5 ohm resistor across your PSU 5 v rail will pull 1 amp (I=E/R). A 1 ohm resistor then will pull 5 amps. For what you are doing, I would get two 1 ohm 50 watt (or better yet, 100 watt) wire-wound power resistors to place a 5 or 10 amp load on the 5 v rail. Depending on how your PSUs regulator circuits are designed, this may or may not help stabalize the 12 v output.

I use a bank of 1 ohm 50 watt resistors in a home made PSU tester and they will get very warm - almost hot (going with the larger 100 watt units won't get as hot).

Good luck - let us know how you make out...

03-19-2003, 07:02 AM	#4
RoboTech Cooling Savant Join Date: Sep 2002 Location: Cincinnati, OH Posts: 229	Hey PKR, No guarantees, but it's worth a try... Placing a 5 ohm resistor across your PSU 5 v rail will pull 1 amp (I=E/R). A 1 ohm resistor then will pull 5 amps. For what you are doing, I would get two 1 ohm 50 watt (or better yet, 100 watt) wire-wound power resistors to place a 5 or 10 amp load on the 5 v rail. Depending on how your PSUs regulator circuits are designed, this may or may not help stabalize the 12 v output. I use a bank of 1 ohm 50 watt resistors in a home made PSU tester and they will get very warm - almost hot (going with the larger 100 watt units won't get as hot). Good luck - let us know how you make out...