Strange POST failure

billyonecan · 17 Apr 2018 at 17:38

My PC has suddenly started behaving strangely when powered on. It runs the POST, reboots, then says that it failed to boot. When I go in to the BIOS I noticed that the DRAM voltage is reading at 1.5v. If I save and exit without making any changes, it boots absolutely fine. If I go back in to the BIOS the DRAM voltage shows 1.656v (which is the correct voltage(?) for my RAM). The XMP profile sets the voltage at 1.65v, but for some reason on a cold boot it seems to be ignoring it, and fails, but after rebooting it's set properly and everything works properly.

Has anyone experienced anything like this before, or have any ideas as to what the problem might be?

Gigabyte z97x SOC Force (F8 BIOS)
i7 4790k (No overclock)
16GB DDR3 Team Group Vulcan Orange (2133MHz)

BongoHunter · 17 Apr 2018 at 18:22

Is the bios keeping time correctly?

billyonecan · 18 Apr 2018 at 07:58

Yeah it appears to be keeping time and date perfectly fine

EsaT · 18 Apr 2018 at 08:23

Still trying new BIOS/RTC battery would be cheap shot.

And what other parts you have?
If you're enthusiast user with PC powered lot for example cheap capacitor PSU could be on its way toward failure.
Cold boot is where bad shape capacitors would give often first symptoms.

Habakkuk · 19 Apr 2018 at 20:30

Reset the bios, pull the battery, replace with new battery.

Gremlins don't like it when you do that.