Summary: I purchased this PSU (Gx 750w) on June 2011. Since I built my own PC on September until some days ago, it was working normally (so far I would give 5 stars). Now my computer reboots suddenly and then restarts, and repeats this cycle randomly. I used it in another computer and it did the same thing. Maybe I just had bad luck with this PSU. Anyway, it seems that in Colombia there is no Cooler Master customer service.
Summary: I purchased this GX750W along with the Cooler Master Haf 932 Advanced case at the end of July. After 38 days using the power supply was on fire tonight after 10 minutes using. My room was full of smoke and bad smell. This is the first time I use Cooler Master power supply and have such bad experience. On the other hand, the case is great. During the 38 days, this power supply was very noisy after using about 40 minutes.