Our computer was down two months ago. The service guy told us that it was because of the power supply, and that we would need a new one to replace the damaged one. We bought a new power supply at a computer store in the nearest town. It’s made by E-Pro, and since it was the only brand available there, we had no other option except to take it. I have used several other E-Pro stuffs and so far I haven’t found any problems with those. So I believe that E-Pro is pretty good for computer peripherals. However, it doesn’t seem to go well with this one. We had to replace it two times at the store we bought it (it didn’t come with a warranty but luckily the store manager seemed to be a nice person) because after it was installed, our computer still wouldn’t start. When finally our computer could start, it was on and off several times due to low wattage or the low quality of this power supply. We were surprised at this because it’s said that the power supply is 450W, as written on the box. When we asked our service guy about this, he said that this power supply wouldn’t supply as much as 450W though it is supposed to be that much. We were very disappointed at this and decided not to replace it with the same unit any more. This product is horrible!