How to measure AMPS on PSU

[Henry Rollins II]

Yo all,

next week I´m getting my new PSU, a Q-tec 550w.

I can´t find a single row on the nét about this one. Now how do I measure the maximum output on each connector? Is there any software based utility for to do this? Is it at all possible?

regards
Henry

[Carnil]

There's no per-connector limit on power supply output. The limit is per-circuit. When you get the PSU, look at the side of the case: it should say what the maximum amperage for each voltage level is. It might report the maximum in watts, in which case you can get the maximum amperage by dividing the wattage by the voltage.

I can think of a few ways of finding the maximum output by using a multimeter and a variable resistor, but these have the risk of wrecking the PSU in the process.

[Henry Rollins II]

Well, I found a that they have a hompage after all. I´m comapring it with two other 550W PSU´s here:

Model----Q-tec 550w---Antec 550w---Enermax 550w---Antec 330w

+3.3v-------30/20A---------32A-----------40A--------------28A
+5v---------40/35A---------40A-----------46A--------------30A
+12v--------20/14A---------24A-----------24A------------- 17A
3.3+5v------285w------------------------300w
12v---------240w
Max total---525w----------531w-----------551w------------310w

Sources
Q-tec: http://www.qtec.info
Antec: http://www.antec-europe.com
Enermax: http://www.enermax.com.tw

The 330w model is just for reference. The picture is clear: You get what you pay for. Enermax is cleary the best, but it costs three times the price for the Q-tec model.

Test of Qtec 550w: http://www.amdworld.co.uk/qtec.htm

regards,
Henry