motherboard temp reading high with speccy windows 10

Just so you get an idea, I originally had a pre-built system with a Pentium Willamette chip 1.6Ghz, FX440 graphics and 256MB RAM. I will be doing so though when I have no choice. I'd do it myself but then I don't really have the time right now, I prefer to spend my time either on the net or gaming rather than building and overclocking from scratch once more. Thing is I love this cpu, it runs my games fine. Is it possible for the bios temperature to be wrong? I mean if it was right at 62 degrees idle then heaven knows what temperature it would be reaching in-game and my pc would just shut off.

Went back to check in windows and it was a nice 32 degrees again. I restarted and went back to bios and it was 62 degrees.

Even in speccy and hwinfo where it's the general cpu temperature not just the cores. Immediately I went to check with coretemp, realtemp, speccy and hwinfo and my cpu was 32 degrees. Obviously with no load, because it's in the bios screen. So while I was in the bios I checked the CPU temperature and it was 62 degrees. These past 3 days, the date and time were going berserk and I had to reset my OC every time. Now it happened that my mobo's battery needs replacing. I never bothered to check the reading in the bios.

I checked the temps (and just checked them now) with coretemp, realtemp, speccy and hwinfo. It idles between 30-35 degrees, and at load it's 55-58 degrees. I've had this E8400 for nearly 2 years now, I overclocked it to 4Ghz the same day I installed it and it's always been like that since then.

Motherboard temp reading high with speccy windows 10