Weird Reboot

[SARGE]

I leave PC on all the time. I have one drive with Win7 and another with Linux Mint. I never have to use F8 as it always boots to Win by default. I came in and somehow Win had disconnected and PC rebooted to Linux by itself. I did a restart and now my Win has time and date set ahead 6 hours. Went into Bios and same thing showing date as 2/21/2013 and 5:12am. It's 11:12 pm and certainly not 2013 yet.

[rwest]

Kinda shootin' in the dark here, but I got a couple ideas you could look at.
Maybe the Mb battery. I know you've got a new system, but maybe the batery was weak to start with. It would explain the time change and boot to linux.

What about brown outs? When there's not enough current to handle the load and you lose power to the house briefly. That can cause freaky problems.

[glc]

Can't explain how it booted to Linux, but that's why the clock is 6 hours fast - it reset to GMT.

[SARGE]

Originally Posted by rwest Kinda shootin' in the dark here, but I got a couple ideas you could look at. Maybe the Mb battery. I know you've got a new system, but maybe the batery was weak to start with. It would explain the time change and boot to linux. What about brown outs? When there's not enough current to handle the load and you lose power to the house briefly. That can cause freaky problems.

I have an APC and no lights flickered in other room anyway.

[rwest]

Hey, I said it was a stab in the dark. I dont know maybe you've got aliens in the basement.

[SARGE]

I know the Bios date and time can effect the OS date and time. I've never seen where an OS like Linux can change the Bios. I mean, I thought Bios was the big dog and gotta hit F10 just to change anything.

[rwest]

Yep, the whole thing sounds weird. anyhing else in BIOS change? or just the time?

[SARGE]

just the time. Started when I installed Linux on another drive. Everytime I used it it changed Bios time and followed into my other drive with Windows. Linux is set for CST. I stopped using it but today the weird reboot. I think I'll chunk it.

[rwest]

Check event viewer. Maybe it can tell you something.

I've been toying around with the idea of doing what you did with linux. Just to play with it. Did you experience any huge difference? Whatdya think of linux?

[jdeb]

A windows update probably changed something in the boot manager. I have seen this issue before.

Windows / Linux dual-boot system time issues « Mike Beach

Fix Incorrect Clock Settings in Windows When Dual-Booting with OS X or Linux

[SARGE]

I still beg the question, how did Bios date and time change???

[glc]

When you adjust the time in either Windows or Linux, this DOES change the bios time. Linux has a tendency to handle time zone corrections differently than Windows.

I do not know WHY this happens, but I do know that it DOES.

[SARGE]

Originally Posted by glc When you adjust the time in either Windows or Linux, this DOES change the bios time. Linux has a tendency to handle time zone corrections differently than Windows. I do not know WHY this happens, but I do know that it DOES.

That was my point I guess. I didn't change any time and both Win and Linux have always had the correct time. When it rebooted on its own and into Linux is when times changed on all 3. I gotta research this or chunk Linux or both.