Odd temp. readings?

[loriis]

Hello,
I've just finished building my first DIY PC, and everythings gone very smoothly so far, the only thing slightly off is temperatures in my system.
I've been monitoring cpu temps with bios and speedfan, and they idle around 39-41 and go up to 56ish on full load, which seems pretty ok to me. The only odd thing is, sometimes when I boot up the cpu readings (even idle) are about 6-7 degrees higher, if I restart they go back down again. It seems like this happens at every other boot, the cpu temperature being stepped up 6-7 degrees? Anybody know what could be causing this? screwy winbond temp chips maybe? a little bios malfunction?

Conrad.

[Golden Dragoon]

What motherboard are you using, and processor?
I know with my current bios on my abit IP 35E the abit utility detects my temps at a constant 80C but speedfan and the bios show the real temps.

[loriis]

Hello. It's an Asrock N7ad-sli board, and I'm running an old pentium D 925 3.0Ghz until I get a new cpu.

It was the same thing this morning, boot up- cpu running at idle at 45c, then shut down and boot up again immediately the cpu came up at 36c?? very odd indeed. ANy idea what might be going on?

[Golden Dragoon]

I suggest that you download and flash the latest bios and see if that cures your issues:
http://www.asrock.com/mb/download.asp?Model=N7AD-SLI

Even if you have the latest bios it can sometimes be a good idea to flash it again, as I have seen issues like this disappear by reflashing.
Also make sure you have all the latest drivers, though I admit that if the bios is showing the incorrect temps it is unlikely to be the drivers, it could help you get the correct temps in windows.

[loriis]

OK, that sounds like a good suggestion, thanks for the help, I've only flashed a bios once before, that was some time ago and I did it with a floppy, could i burn the bios to cd or stick it on a flash drive and then boot from one of those?

[Golden Dragoon]

I wouldn't do it from a cd, though it is possible it is usualy a good idea to do it from writeable media so you can backup your current bios. I also wouldn't use any windows utilitys to flash the bios, there is just too much chance that windows might crash and take your motherboard with it.
There are guides to getting flashing by usb working, though it is dependant on your motherboard being able to boot from usb (Google Link), if it can't I would say that you will have to crack out the old floppy drive