Like the title says, for a couple days now, everytime I turn my PC on (I unplug the power cord every night) I'm presented with the default logo and a message saying my time/date is incorrect and I have to press F1 to enter BIOS and "fix" everything. This does not happen if I just turn the PC off and on after cold boot. The PC is a mixed bag of old and not so old hardware. Money has always been short and I don't see a 100% reason to change the whole PC. The machine: Asus P6T SE Xeon X5650 @4 Ghz (from a previous i7 920) - overclock and temps are fine though 18 GB RAM (3x2GB + 3x4GB) - I know, all 6 slots full, sometimes it doesn't report the whole RAM and I have to fiddle with it (a pain in the rear...) GTX 1070 Sound Blaster Z 2 SSD + 2 HD A few things connected trough USB (mouse, keyboard, wheel, camera...) Corsair HX750 (getting old now) Windows 7 x64 The board is picky if I open the case and do anything inside. Even just spraying the dust is enough to make it boot with less than the full installed RAM. I know it's an old thing with x58. Lately it simply decided to boot with default BIOS settings. I though it was the CMOS battery so I replaced it with a new one but it didn't change a thing. I also tried to clear the CMOS (the proper way) and re-try the whole process. Like explained before, at cold boot the problem is there. After I put all settings back on, it gets fixed (until next cold boot). Another odd thing I noticed is, both BIOS and Aida64 report +6v on the +5v rail!!! Checked all cables and anything that could be causing a short-circuit but nothing changes. The PC is working fine but that voltage makes me a bit scared. Could it be the ancient mainboard or the PSU trying to fry some eggs? At the moment I can't spare much, if anything at all, on new hardware. I may try to get a spare PSU to test it though. I'd appreciate any help you guys could give me on this issue.