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Re: x79-ud3 does not wake up from sleep mode, power cycling
Interesting, this reminds me of the wake from Sleep issues that many P67 boards have, including my ASUS P67 board. I'll add my experience with this issue on that board, just an FYI if you're interested.
As most of X79 owners know, that chipset is much more closely related to the Intel 6 series chipsets, rather than the other 7 series chipsets used with Ivy Bridge CPUs. Since socket 2011 CPUs use Sandy Bridge architecture cores, not the 22nm Ivy Bridge cores, that makes sense.
The wake from Sleep issues with my P67 board were never solved, with even the latest BIOS update for that board. The fix the one X79 user found with a different video card is interesting, since the video card seems to be at least one thing that does not function when attempting to wake from Sleep. My video card would literally make a buzzing sound similar to what a mother boards speaker might make, when the system failed to wake. BTW, that card was one that took power only from the PCIe slot. Otherwise it seemed everything else in the PC started, fans, power LEDs, drives, but nothing to the monitor.
Some users of my board claimed a different power supply cured the problem, and strangely it was cheaper, older power supplies that worked for them. The best hint I ever found was in a Windows log (Event Log) that logged the wake from Sleep error. It said a driver had not responded in the expected amount of time, taking longer than ~500ms. That might be related to the amount of time it took the power supply to send its "Power Good" signal to the board, which on many newer power supplies was supposedly longer than the ATX spec, at ~800ms.
One strange thing users of my board found was that a short term Sleep of less than ~30 minutes would wake fine. Others thought that this was related to the boards temperature, if it was "warm", the system would wake fine. That was at best a symptom IMO. We did not have the boot loop issue that seems common in this thread, but that may be simply your boards reaction to this situation. We found that in many cases we could restart the PC after the wake failure, and the PC would resume without a boot, as if it had woke from Sleep.
The fix that ASUS suggested was disabling PLL Overvoltage in the BIOS, which some claimed worked for them, but not for me. The causes that Gigabyte suggested are unrelated IMO. I think it may be a chipset issue with some 6 series chipsets, that simply cannot be fixed. I suggest checking the Windows Event Log, or others for hints about this problem. That board is the only one I cannot use Sleep with, my Z77 board wakes from Sleep every time, when using a Sandy Bridge or Ivy Bridge CPU with it.
Interesting, this reminds me of the wake from Sleep issues that many P67 boards have, including my ASUS P67 board. I'll add my experience with this issue on that board, just an FYI if you're interested.
As most of X79 owners know, that chipset is much more closely related to the Intel 6 series chipsets, rather than the other 7 series chipsets used with Ivy Bridge CPUs. Since socket 2011 CPUs use Sandy Bridge architecture cores, not the 22nm Ivy Bridge cores, that makes sense.
The wake from Sleep issues with my P67 board were never solved, with even the latest BIOS update for that board. The fix the one X79 user found with a different video card is interesting, since the video card seems to be at least one thing that does not function when attempting to wake from Sleep. My video card would literally make a buzzing sound similar to what a mother boards speaker might make, when the system failed to wake. BTW, that card was one that took power only from the PCIe slot. Otherwise it seemed everything else in the PC started, fans, power LEDs, drives, but nothing to the monitor.
Some users of my board claimed a different power supply cured the problem, and strangely it was cheaper, older power supplies that worked for them. The best hint I ever found was in a Windows log (Event Log) that logged the wake from Sleep error. It said a driver had not responded in the expected amount of time, taking longer than ~500ms. That might be related to the amount of time it took the power supply to send its "Power Good" signal to the board, which on many newer power supplies was supposedly longer than the ATX spec, at ~800ms.
One strange thing users of my board found was that a short term Sleep of less than ~30 minutes would wake fine. Others thought that this was related to the boards temperature, if it was "warm", the system would wake fine. That was at best a symptom IMO. We did not have the boot loop issue that seems common in this thread, but that may be simply your boards reaction to this situation. We found that in many cases we could restart the PC after the wake failure, and the PC would resume without a boot, as if it had woke from Sleep.
The fix that ASUS suggested was disabling PLL Overvoltage in the BIOS, which some claimed worked for them, but not for me. The causes that Gigabyte suggested are unrelated IMO. I think it may be a chipset issue with some 6 series chipsets, that simply cannot be fixed. I suggest checking the Windows Event Log, or others for hints about this problem. That board is the only one I cannot use Sleep with, my Z77 board wakes from Sleep every time, when using a Sandy Bridge or Ivy Bridge CPU with it.
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