3 Replies Latest reply on Dec 14, 2012 9:39 AM by Shaun

    DZ77GA-70K Power issues


      I built a new system using the DZ77GA-70k mobo and a 3770 processor.  Under a normal load it all seems fine, but when I try to do anything that is the slightest bit taxing on the system (i.e. any game) it shuts down and turns on the red light that indicates "power supervisor".  I used the IDU to check for voltage levels, and all seem fine, with one exception....the RAM voltage. 


      Perhaps I'm just misreading something here, but the RAM voltage should be 1.65v, as set in the BIOS, but the IDU app lists it as .820v?  Is this just something to do with the way it displays it or is something way out of whack? 


      I'm not even certain that the RAM voltage is causing the power supervisor shutdown, just that it was the only value that looked to be well out of range.


      Any thoughts on this?





        • 1. Re: DZ77GA-70K Power issues

          what power supply are you running? did you make sure to plug in the 8 pin CPU power on the top corner of the board?

          I would swap power supplies and see if that helps, SeaSonic and Corsair makes excellent PSU. Ram voltage should be 1.5v, check the bios make sure it's set at 1.5\auto, however it sounds like a failing power supply to me since under load it fails.

          • 2. Re: DZ77GA-70K Power issues

            Sure enough, it was the power supply.  In retrospect, I guess there are many possibilities that could have been worse.  I did pick up a Corsair 800, it seems to be happy now.  The old supply was a 700, and had been powering my old system for about 2 years, so I guess it either went bad RIGHT at the time I replaced motherboards or this new motherboard has a much tighter tolerance for voltages.  In any case, it's working so that's good!


            Also, about the RAM, I had heard that 1.5 is where it should be, but this RAM (G-Skill Triton) calls for 1.65.  I'm not sure who to make happy, the mobo or the RAM!  I'll set it to 1.5 and see how that goes.


            Thanks for the response!



            • 3. Re: DZ77GA-70K Power issues

              try setting it to auto, that way it'll read the voltage required from the ram. Glad the new PSU solved the problem