I have a corsair CX430 v2 (the green one with bronze 80+ certification) since mid 2011. It's been in an old HP compaq computer, then my current computer with specs below using a GTX460 for 6 years with coil whine only during gaming, then upgrading to my current gtx 1060 (no coil whine) last year. At the time the unit was recommended and bought here, but it seems opinions for low end corsair units have changed. I've had no issues apart from coil whine from my old GTX460 on heavy gaming, which is no longer present once I changed the graphics card. There was a also a period of 6 months when I did do folding@home towards the start of the computer's life. Is it time to upgrade/change it or should I keep it until it fails?