ShrimpBrime>>> Thank you for comment, it is very important for me. I had forgotten that people do not understand basics of electronics. You brought me back down to earth. And no, PSU is not stabilized by a motherboard, otherwise, nobody would measure ripple.
Shambles1980>>> That would no good. What more if capacitors bank is >4700uF PSU is very likely to be unable to start.
dorsetknob>>> Not exactly true. I have been making measurements using devices like oscilloscopes, electronics loads and bench multimeters (roughly $2500 in total). Which is not very convenient, especially if you have to move them to a friend's house for a measurement.
satrianiboys>>> Power supplies do not lose their power with age, just output voltage ripple (aka quality of power) gets worse and at one point in time end equipment (in your case GPU) is no longer capable to cope with it. That results in poor power fed to GPU core and GPU crashes. It is like like filling a car tank with gasoline and give a test drive 5 years later. One car might be able to start and run somehow, others would not even start. What is different from the car example is that PSU output ripple is proportional to load. So reducing load in your case removing one GPU reduce ripple and your seems run fine again (for some time). By replacing output caps (which degrade over operational time) you would technically have like new PSU with good 4-7 years of operation till next servicing. Input cap rarely gets bad, but I had one in 13 years. I took an image from toms hardware and attached it to this message, you can have a better understanding.
londiste>>>Yes, but not in the first version. I will have to hire somebody to make nice Windows and Linux software for which I do not have resources at the moment.
Vayra86>>> I have Seasonic S12II-430. It is low end supposedly reliable PSU. Just after one year of use in non overclocked system with FX8350, 275GTX, 32GB of ram, 4HDDs and one ssd it is already out of specs. It usually draws less than 200W, sometimes going to 350W, but still lower than rated 430W. That should not be a problem, especially having in mind that this model can work up to 500W when new (tested by hardware secrets). By now PC works fine, except it randomly wakes up from sleep. I traced it down to transient filter, but that is off topic. What I wanted to say, it is an excellent PSU for value according to reviews, but just after one year of use it is out off specs and still under warranty. My device would beep like crazy till you press a button to shut up (that do not seem fancy warning system), so you would know that PSU is going bad, despite system works almost fine.
I agree that it does not belong to the same category as fan controllers and temperature monitor, but I am not sure where.
