You set the profiles, I am pretty sure. They are usually for you saving your bios settings for things like overclocking.
I am really curious to see the voltage readings on the PSU. The most respected PSU site I know, does not like it at all. It actually blew up while he was testing it. He says most 350W PSUs will put out more power. Read it for yourself.
Allied AL-D500EXP 500W power supply review Review
That does not mean that is your problem, but could very well contribute to it. According to AnandTech a well respected site, your card can pull as much as 332W under full load.
AnandTech | AMD?s Radeon HD 5830: A Filler Card at the Wrong Price
I am still not saying that is the cause of the problems you are having. But, it very well may be at least a contributor and if the reviews are correct, most likely will be at some point.
See if you can run this. it will take quite a few hours, but it needs to run for 8 full passes or until you get an error. If you get even 1 error, you can stop the test. You will know if it gets errors, as it will tell you and will show red lines at the bottom of the screen also. Just push escape to stop the test. If you have a USB thumb drive, I would download version 4.20 pre configured USB installer. Then you have to boot into the USB drive, not into Windows. The test will start on it's own and run until you stop it.
Information
Please download from this site only
http://www.memtest.org/ in the middle of the page are the Download links, you can download the ISO.zip or the Auto USB Flash Drive installer.zip
Extract the Zip file. If you chose the ISO image, burn it to a CD using Windows Disk Image Burner or any Image burner you may have. If you downloaded the Auto USB installer, extract it, insert your USB 2.0 Flash Drive and take note of the drive letter. Run the installer, select the Flash Drive Letter, check the format box and press next. It will install memtest86+ to a flash drive. You can use either V4.20 or V5.01. Boot from your selected media. If you use V5.01 it will tell you to press certain buttons at the start, please press no buttons. The test will begin on it's own and continue to run until you stop it. It needs to run for 8 complete passes or until you receive an error. If you receive an error, stop the test. Even 1 error is a fail. Each pass tests a different part of the ram and each of the 10 tests in each pass tests something different. It takes a minimum of 8 passes to completely test the ram, more passes are better. It is quite a long test and will take several hours depending on how much ram you have. Due to the time length it is best to run overnight. If you have any questions, please do not hesitate to ask