Resetting on cold boot occasionally

IvanDobskey · 10 Oct 2016 at 18:28

Just lately, my PC has started occasionally resetting before loading windows when booting from cold. It started happening soon after installing my new 1070.

It always loads ok the second time and once in windows there isn't any issue.

Any ideas what could be causing this? PSU on the way out maybe?

mickyflinn · 10 Oct 2016 at 18:51

Set everything back to stock values and see if it persists also could try a new cmos battery.

IvanDobskey · 10 Oct 2016 at 20:58

The PSU must be 5 or 6 years old now. I believe they do degrade over time. So maybe it's time for a new one anyway.

maffa1982 · 10 Oct 2016 at 23:59

ive had the same issue the past few days, pc would boot up to login screen then shut off, then shut off after 2-3 seconds after that. turns out my cpu water cooler's pump wasnt coming on so cpu was overheating. Still not 100% sure its the cooler, motherboard or psu not delivering the power to it

IvanDobskey · 11 Oct 2016 at 06:21

What's a decent psu to go for at the moment?

IvanDobskey · 13 Oct 2016 at 06:31

Decided to try changing the CMOS battery first.

Will see if that cures the issue. New psu if it doesn't.

IvanDobskey · 14 Oct 2016 at 08:00

Not seen a reset since changing the CMOS battery. Hoping the issue is sorted

IvanDobskey · 18 Oct 2016 at 08:05

Well, I've still got this problem

Installed a brand new 650w EVGA G2, still the same.

It all started soon after installing my 1070. Could the gpu be at fault? I've played witcher 3 and tomb raider for hours without a hitch.

I'm guessing it's a motherboard issue now.

jbh110tdi · 18 Oct 2016 at 08:13

did you check for a motherboard bios update when you installed the new GPU.
version 3802 seems to be the newest its been out since April last year but if you are on an older version it could be worth checking.

IvanDobskey · 18 Oct 2016 at 08:30

Yep, got 3802 bios version.

Pc is running fine in windows and it only ever does the reset once before loading windows. It's bugging me though.

Tomc@T · 25 Oct 2016 at 21:09

IvanDobskey said:
Any ideas what could be causing this? PSU on the way out maybe?

It is the cold boot restart bug on the P8Z68 motherboard.

Mine has done exactly the same since I have had it, I tried hunting down a solution but never found anything to "cure" it.

https://goo.gl/YVvfyW - has many pages on the subject.

Dogoid · 25 Oct 2016 at 22:36

Try Safe Mode, if it doesn't happen then it's likely software based.

IvanDobskey · 26 Oct 2016 at 07:13

Tomc@T said:
It is the cold boot restart bug on the P8Z68 motherboard.

Mine has done exactly the same since I have had it, I tried hunting down a solution but never found anything to "cure" it.

https://goo.gl/YVvfyW - has many pages on the subject.

Interesting, didn't realise there was a cold boot bug on this board. Mine has run for years without it showing up, then soon after i add a 1070 it starts. Weird.

Computer is running fine in windows but this cold boot reset issue is driving me mad.

Every time i think I've fixed it, it does it again.

Tomc@T · 26 Oct 2016 at 20:52

IvanDobskey said:
Every time i think I've fixed it, it does it again.

I was the same, thought I had it fixed... nothing for ages then a cold reboot reset out of nowhere - totally random.

In the end I just accepted that it occasionally does this.

IvanDobskey · 26 Oct 2016 at 21:01

Tried changing gpu to auto rather than pcie and next boot my mouse didn't work. Usb port the mouse was in seems to have died. Put the mouse in a different port and it works. Reckon my board is slowly dying.