+ 0 Votes What message if any do you get on the monitor OH Smeg 5 years ago When it goes out here? While you seem to have tried most things in the computer have you considered that maybe the monitor itself is on it's way out here? Now in answer to your question this will be limited because I don't have all of the facts here but if this is a no name PS I would take it out and chuck it in the bin. All No Name PS are rated to a Peek Load and can supply the rated Wattage for short periods of time till they get to a certain Temp and then they need to cut back on their power output till they have had a long enough Rest Period to return to Full Power again. A Constant Draw PS like an Antec is rated to run at it's stated Output 24/7 so if it is rated to 350 W it can supply 350 W 100% of the time where as a No Name PS which is rated to 480 W will be able to supply this load for short periods of time and then will need to drop back to a lower output till it's components have cooled down again. Quite often a 350 W Constant Rated PS will work better than a 600 W Peek PS. The other thing to look at is your actual Mains Supply if ti is dirty with lots of Spikes and other ripples it will place a higher load on the PS to do it's job as it has to work harder to supply stable filtered power. So things like Electrical Central Heating/Air Conditioning fridges, washing Machines switching on and off will produce Spikes that may have undesirable effects here. Also if you are on the end of the Mains Supply in your ares you could be suffering for constant prolonged Brown Outs where the Voltage drops below the threshold of some appliances to work correctly. Things like TV's not showing a full screen and hot plates on Stoves not all being able to be used at once are signs of a Brown out. If you suffer Brown Outs Electric Motors in things like Fridges & Freezers tend to die very quickly basically any Electric Motor and Switch Mode Power Supplies don't like Brown Outs at all and do suffer from these. But on the other side of the coin I got a computer in with the symptom of loosing the Display after 20 minutes or so and I spent days messing around changing things only to finally prove that my Monitor had chosen that time to die and was shutting down for a Heat Related Issue that it was now producing. It would run for a set period of time loose it's display till it was turned off and then switched back on and then it would run for a shorter time before going out again. Though the LED on the front of the monitor was showing that it was in the Run Position not the Power Saving Mode. It turns out that I had fixed the main problem and was seeing a similar issue because of the monitor failing. Col + 0 Votes Your Welcome though I did think I said something about the PS above. NT OH Smeg 5 years ago .