How to tell a bad mobo?

[hansolo1l5]

I think I may have a bad motherboard on my hands but im not sure how to be positive. Ive got a gigabyte ga-880gma-ud2h with a phenom II 3.2 ghz chip in there. windows 7 64 bit home premium, using the onboard graphics ati hd4250. basically the system would artifact and freeze in windows and need to be rebooted. from there i would get an error code about overclocking but i havent been overclocking the system. i set the bios to defaults and would still get it. thought it was the memory so i ran memtest+. i would get errors right away starting memtest so i switched out the ram with ram that passed on another working machine but that memory gave me errors too. so i took the modules from the glitching unit and tested it in my working pc and no errors. so i figure this is a bad mobo? can anyone give me some more information? thank you.

 

[geekapproved]

Did you manually set your ram timings, speed, and voltage? Auto doesn't always work right especially in DDR2 boards.

For instance if you have high performance 2.0-2.2v ram and your using auto which sets it to 1.8v, your going to have all kinds of problems.

There's a little sticker on your dimms that tells you the voltage, timings and speed it's designed to run at. Make sure that's what it's set to in bios.