Glock17 Jan 9, 2020 @ 1:48am
z170 motherboard no longer works (or boots)
went to a shop to cut my losses and get rid of it before it becomes junk. They tested it and said it wont boot, wont post. No work.

I suspect that CMOS battery might have bricked the mobo since I havent touched it in years.

Could it be the culprit? Can reflashing the BIOS or resetting the mobo make it work?

Not sure what happened but they said no input. Motherboard no work so it is DOA. I bought it in 2016 so wondering if it is still good.
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Showing 1-15 of 19 comments
Snow Jan 9, 2020 @ 1:59am 
A battery can't do anything bad with motherboard.
If it was indeed a BIOS problem - it'd at least turn on. Gotta be dead or shorted.
_I_ Jan 9, 2020 @ 2:21am 
reset bios using its jumper
reseat cpu, ram, gpu (make sure the mobo cpu pins are not bent)
double check the power connectors

try outside a case, (extra standoffs may be shorting parts)
Glock17 Jan 9, 2020 @ 3:51am 
Originally posted by _I_:
reset bios using its jumper
reseat cpu, ram, gpu (make sure the mobo cpu pins are not bent)
double check the power connectors

try outside a case, (extra standoffs may be shorting parts)
never came with a jumper. Everything was fine. I didnt run the tests. They did.
Glock17 Jan 9, 2020 @ 3:52am 
Originally posted by Snow:
A battery can't do anything bad with motherboard.
If it was indeed a BIOS problem - it'd at least turn on. Gotta be dead or shorted.
The mobo hasnt been touched in years. Batteries have a certain shelf-life before they eventually die and then nothing is keeping the memory settings for the motherboard active until next boot.
Snow Jan 9, 2020 @ 3:57am 
Originally posted by 2 connector:
never came with a jumper. Everything was fine. I didnt run the tests. They did.
There must be jumper connecting two of three pins to reset CMOS. If there's no jumper at all - mobo won't start.
https://previews.123rf.com/images/nomadsoul1/nomadsoul11302/nomadsoul1130201405/18103422-computer-motherboard-circuit-jumper-bios-config-in-the-center.jpg
If this thing is missing - well there's your problem.
Originally posted by 2 connector:
The mobo hasnt been touched in years. Batteries have a certain shelf-life before they eventually die and then nothing is keeping the memory settings for the motherboard active until next boot.
Well, actually, settings stay as you set them as long as PC is powered. Battery is not vital, it's there for convenience, so power offs won't reset the BIOS settings to default ones.
Last edited by Snow; Jan 9, 2020 @ 3:58am
Glock17 Jan 9, 2020 @ 3:59am 
Originally posted by Snow:
Originally posted by 2 connector:
never came with a jumper. Everything was fine. I didnt run the tests. They did.
There must be jumper connecting two of three pins to reset CMOS. If there's no jumper at all - mobo won't start.
Originally posted by 2 connector:
The mobo hasnt been touched in years. Batteries have a certain shelf-life before they eventually die and then nothing is keeping the memory settings for the motherboard active until next boot.
Well, actually, settings stay as you set them as long as PC is powered. Battery is not vital, it's there for convenience, so power offs won't reset the BIOS settings to default ones.
i dont understand why it doesnt work then. Also its a cheapo Asrock Pro4S model.
It doesnt come with anything.
Last edited by Glock17; Jan 9, 2020 @ 3:59am
Snow Jan 9, 2020 @ 4:04am 
Originally posted by 2 connector:
i dont understand why it doesnt work then. Also its a cheapo Asrock Pro4S model.
It doesnt come with anything.
You say cheapo Z170 mobo - and I say cheapo Pentium 3/4 motherboards I have around, and they all have CMOS jumpers. Check your mobo's manual, page 6, thingy named as "25" sitting between the lower long PCI-E slot and the battery. Refer to page 18 of the manual to check how the jumper should be placed.
Glock17 Jan 9, 2020 @ 4:10am 
Originally posted by Snow:
Originally posted by 2 connector:
i dont understand why it doesnt work then. Also its a cheapo Asrock Pro4S model.
It doesnt come with anything.
You say cheapo Z170 mobo - and I say cheapo Pentium 3/4 motherboards I have around, and they all have CMOS jumpers. Check your mobo's manual, page 6, thingy named as "25" sitting between the lower long PCI-E slot and the battery. Refer to page 18 of the manual to check how the jumper should be placed.
It. Never. Came. With. One.

What part do you not understand? I already checked. Its not in there.

Doesnt matter anyways. The thing is junked. It will probably never work anymore.
Last edited by Glock17; Jan 9, 2020 @ 4:10am
Snow Jan 9, 2020 @ 4:18am 
Originally posted by 2 connector:
It. Never. Came. With. One.

What part do you not understand? I already checked. Its not in there.

Doesnt matter anyways. The thing is junked. It will probably never work anymore.
Sure, because yours is not ASRock Z170 Pro4S but something you made up, as ASRock Z170 Pro4S comes with a CMOS jumper and having none might result in boot failure.
Screw it, whatever.
Glock17 Jan 9, 2020 @ 5:10am 
Originally posted by Snow:
Originally posted by 2 connector:
It. Never. Came. With. One.

What part do you not understand? I already checked. Its not in there.

Doesnt matter anyways. The thing is junked. It will probably never work anymore.
Sure, because yours is not ASRock Z170 Pro4S but something you made up, as ASRock Z170 Pro4S comes with a CMOS jumper and having none might result in boot failure.
Screw it, whatever.
If I made it up, I wouldnt be here talking about it. But hey, whatever helps stroke your ego, kid.
Bad 💀 Motha Jan 9, 2020 @ 6:14am 
Get a new cmos battery. Why didn't the shop try that. They must be really bad to not know it could be as simple as a bad battery. Which when bad, most boards after intel 2nd Gen stuff, generally won't boot due to that factor. As far as cmos reset, no one needs a jumper, just short the reset cmos pins with a screw driver.

But first, try a new cmos battery.

Even if your board had a reset jumper and it got lost, that shouldn't be an issue. As the 3 pins are meant to work like this...

Pins 1 & 2 having been where the jumper was originally seated, does nothing, just a place holder. Pins 2 & 3 being the actual pins to short in order to trigger cmos reset. So even if jumper is lost, having pins 1 & 2 left open doesn't hinder the system in anyway because it just a placeholder for the jumper, to avoid losing it is all.
Last edited by Bad 💀 Motha; Jan 9, 2020 @ 6:17am
Glock17 Jan 9, 2020 @ 6:17am 
they. did.

But! the thing has been dead for 3 years. I never changed the CMOS battery at all. And it has only been plugged in twice. It just sat there on my shelf. At some point. The motherboard will no longer work if the CMOS battery wasnt changed.
Bad 💀 Motha Jan 9, 2020 @ 6:23am 
Originally posted by 2 connector:
they. did.

But! the thing has been dead for 3 years. I never changed the CMOS battery at all. And it has only been plugged in twice. It just sat there on my shelf. At some point. The motherboard will no longer work if the CMOS battery wasnt changed.
Thats total BS. The board can sit on shelf for 10 years. It doesnt need a battery while being stored away. This just helps keep tge bios settings saved. If the issue was simply due to faulty battery, replacing it would get the board working again. Just that the cmos would all be reset if it had booted due to when having faulty battery, the bios settings a user saved before would have all been reset back to defaults. The board obviously has failed due to other reasons.
Glock17 Jan 9, 2020 @ 6:25am 
Originally posted by Bad 💀 Motha:
Originally posted by 2 connector:
they. did.

But! the thing has been dead for 3 years. I never changed the CMOS battery at all. And it has only been plugged in twice. It just sat there on my shelf. At some point. The motherboard will no longer work if the CMOS battery wasnt changed.
Thats total BS. The board can sit on shelf for 10 years. It doesnt need a battery while being stored away. This just helps keep tge bios settings saved. If the issue was simply due to faulty battery, replacing it would get the board working again. Just that the cmos would all be reset if it had booted due to when having faulty battery, the bios settings a user saved before would have all been reset back to defaults. The board obviously has failed due to other reasons.
I guess. It worked fine before. I dont know what happened. And at this point, its not worth the money to fix it. 100 dollars down the drain. So glad I never used it in my rig.
Bad 💀 Motha Jan 9, 2020 @ 6:26am 
Not sure, but check the warranty status of the board via the brand makers warranty/support section.
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Date Posted: Jan 9, 2020 @ 1:48am
Posts: 19