How can you test the amp output for a powersupply on the 12v rails. Say for instance I want to check if the rated 18 amps is actually 18 amps. I know there is a easy way to test voltages (either bios or a psu tester). But is there an easy way to test amps? Most Multimeters I have seen only go up to 10 amps max.

"is there an easy way to test amps?" No. A PSU doesn't sit there churning out max amperage, amperage varies depending on load. Voltage on the other hand *should* be reasonably constant (within 5% +/-) at all times...that's why it's easy to check. Unfortunately, voltage testing is almost useless. Unless you can afford high tech/high priced load testing equipment that costs in the 10's of 1000's of dollars, you're just gonna have to stick with relying on reviews & buying brand name units. Generally speaking, you get what you pay for. http://www.youtube.com/watch?v=c0kn... http://www.tomshardware.com/reviews... http://www.hardwaresecrets.com/arti... http://www.hardwaresecrets.com/arti... "If my answers frighten you then you should cease asking scary questions" - Jules Winnfield (Samuel L. Jackson) in Pulp Fiction

What jam said. For the most part no home user and very few techs test a power supply for pc computers. "Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10

Thanks. That makes sense. I think all the tech talk about powersupplies I've been reading has me going crazy.