CPU/Mobo Weirdest issue with mobo since past few days.

Futureized

Adept
I have to unplug the main motherboard power cord and plug the same again.
System runs fine for hours to days, until i manually shut down and turn off power switch *electric supply*.

Not sure how to debug this.
 

Rockfella

Nitrate killer!
Staff member
Patron
Check for any BIOS updates/clear CMOS.
 

Stronk

Adept
Sounds like a PSU issue to me. Could you list your pc specs and age of the PSU?
 

Slayer88

Disciple
I kinda had the same issue this week too. Do you have any sleeved/LED 24 pin extension cables?
 

Futureized

Adept
Check for any BIOS updates/clear CMOS.
I have latest bios.
Though couple of times a year, get a message bios is corrupt and will be restored from secondary bios.
Gigabyte z77x up5 th motherboard.
Sounds like a PSU issue to me. Could you list your pc specs and age of the PSU?
It's on old system.
Gigabyte z77x up5 th motherboard
i3 3750k cpu
8 Gb ddr3 ram
Nvidia GeForce ti 600 boost gpu (it's in repair, got burnt last week while cleaning machine)
Antec 750 watts psu.
I kinda had the same issue this week too. Do you have any sleeved/LED 24 pin extension cables?
Don't have 24 pin cable which goes in mobo.
 

rsaeon

Disciple
I have a simiilar issue with a GA-Z97-UD7 TH. I consider it to be a senile system even though I have older stuff that's working like new, since it's so finicky about starting up. I have to clear CMOS each and every time. My current solution is to never turn it off. But I suspect the BIOS chip needs to be reflashed or replaced since flashing through the existing BIOS doesn't fix the problem. The most striking symptom I have is that the post code display won't show anything on power up, so I clear CMOS and then it works on the next boot.

You could try something as simple changing the CMOS battery and then reflashing the current BIOS in a DOS environment. I'm half way stuck wondering if it's time to let go of such old hardware or to pursue a fix.
 

Slayer88

Disciple
I had one model lower than OP's, z77x UD3H, sadly it died on me earlier this year after serving me well for many years.
I have a simiilar issue with a GA-Z97-UD7 TH. I consider it to be a senile system even though I have older stuff that's working like new, since it's so finicky about starting up. I have to clear CMOS each and every time. My current solution is to never turn it off. But I suspect the BIOS chip needs to be reflashed or replaced since flashing through the existing BIOS doesn't fix the problem. The most striking symptom I have is that the post code display won't show anything on power up, so I clear CMOS and then it works on the next boot.

You could try something as simple changing the CMOS battery and then reflashing the current BIOS in a DOS environment. I'm half way stuck wondering if it's time to let go of such old hardware or to pursue a fix.
Since you bought it from me, buddy, were you able to get it back to life?
 

rsaeon

Disciple
I haven't had the opportunity to look at it yet, but I did purchase some bios reprogramming hardware during this recent sale. That Z77 motherboard is going to be the first from a pile of motherboards I have that I'll be attempting to fix. I'm hoping to pick up a cheap i3 in the next few weeks to see a bios flash/replacement would fix the issue (I sold your 3770 to a local member a few months ago).
 

vaibhavyagnik

youtube.com/vaibhavyagnik
Adept
I have to unplug the main motherboard power cord and plug the same again.
System runs fine for hours to days, until i manually shut down and turn off power switch *electric supply*.

Not sure how to debug this.
You turn off the power supply > Motherboard forgets settings if the CMOS battery is dead. One reboot later, the bios settings are restored since first reboot had power and second reboot happened without power loss. I think your problem should be solved once you replace the CMOS battery, power on, configure the bios (time, AHCI, boot order etc) and you should be good.
 

Futureized

Adept
Thanks for the replies.
Will try all solutions mentioned above.
Luckily was able to boot properly today morning.
 

Futureized

Adept
You turn off the power supply > Motherboard forgets settings if the CMOS battery is dead. One reboot later, the bios settings are restored since first reboot had power and second reboot happened without power loss. I think your problem should be solved once you replace the CMOS battery, power on, configure the bios (time, AHCI, boot order etc) and you should be good.
Replaced CMOS battery 2 days ago but same issue. PC is on since yesterday (more then 24 hours) without any issues.
Just replaced monitor power plug with psu power plug and same issues again.

I ll wait till morning to check again.
 
Last edited:

Synth-Pop

Patron
I have to unplug the main motherboard power cord and plug the same again.
System runs fine for hours to days, until i manually shut down and turn off power switch *electric supply*.

Not sure how to debug this.
what exactly is the issue you're facing ? Can you please explain a bit more.