Hello, I have had some troubles tonight I have 3 new power supplies 2 just out of the box today, one 350 watt, one 500 watt. I got a 300 watt last month installed it in my biggest computer back then. Got the 500 out today and it won't run the same computer. So tried the 350 watt and it fails immediatly after turning it on also. Put the month old 300 in my smallest computer and it fails after about five to ten minutes. So dug out a thirteen year old 200 watt and twelve year old 250 watt and got them both working (good for now) but that is way to low of watts for all the stuff running on them. What's the fix? I've heard of burn-in but don't know anything about it. What's the problem and what is the cure? Please need more help, my problems are endless. Thank You!! Crunch

When it comes to PSUs, you get what you pay for. You haven't supplied us with any useful info other than 300, 350, 500W...that really doesn't mean a hell of a lot. There are some kickass 300W units & some 500W units that are absolute crap. You should expect to pay at least $40-50 for a decent PSU, unless you find a sale. The Athlon gets ALL it's power from the +12v rail...HDDs, optical drives, fans, also get their power from the +12v. Generally, 16A on the +12v is the minimal requirement...18A or more is recommended. http://www.firingsquad.com/guides/power_supply/default.asp http://tinyurl.com/knwup

"Burn in" is just a term meaning---plug it in, and if it works long enough to work for awhile, it will work for a long time." Solid state devices don't "break in"--burn in just means that if it's going to fail, it will probably do so in the first short period of operation.

I ain't going back to your Lin Lin adaptor and 1.2ghz tualatin in this new post. Are you using the same wall outlet and the same computer power cable from the wall to your power supply for all your experiments? Do you have an option to set the power supply for 115 or 220 volt current by sliding the little switch to the appropriate setting?

Hi, I think you just proved that the PSU was not the problem in the first place. Jim

Thanks for the answers. found the problem, was doing new case and powersupply at same time. The new case had a dead short in on/off switch. and yes the dynex is trash. Crunch