[SOLVED] Can't locate the CMOS battery on my ASUS z690-G

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Jan 8, 2022
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Hi

Each time I unplug my computer I need to press the CMOS reset switch on the back of the case. Otherwise the computer won't boot. That's why I want to replace the CMOS Battery but I can't find it on my Motherboard. I guess I'm just blind.
Here's the excact model:

Thanks for your help
(Couldn't find it in the manual either..)
 
Solution
I was looking for that too as a couple of the high end Rampage and Crosshair boards that just came out have them wired to a similar connector glued to and buried under the armor, though it looks a little bigger.


Another model of a ASUS board the battery is on the back of the USB port and 2 pin wire.
EDIT The 2nd link shows the battery the picture is the location and wire.
And again covered up with the heatsink. https://rog.asus.com/us/motherboards/rog-strix/rog-strix-z390-i-gaming-model/

https://epicpc.com.au/PHOTOS/REVIEWS/2018/ASUS ROG STRIX Z390I/_FIN9848.jpg

View: https://i.imgur.com/WSOKWUu.jpg

Zerk2012

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I was looking for that too as a couple of the high end Rampage and Crosshair boards that just came out have them wired to a similar connector glued to and buried under the armor, though it looks a little bigger.


Another model of a ASUS board the battery is on the back of the USB port and 2 pin wire.
EDIT The 2nd link shows the battery the picture is the location and wire.
And again covered up with the heatsink. https://rog.asus.com/us/motherboards/rog-strix/rog-strix-z390-i-gaming-model/

https://epicpc.com.au/PHOTOS/REVIEWS/2018/ASUS ROG STRIX Z390I/_FIN9848.jpg

View: https://i.imgur.com/WSOKWUu.jpg
 
Last edited:
Solution
Another model of a ASUS board the battery is on the back of the USB port and 2 pin wire.
And the manual for this model also fails to mention where the battery is. Although it does mention removing the battery if CLR_CMOS button fails to do its work. So it looks like those Asus boards indeed have battery under heatsink - which also means OP board is probably defective.
 

Rogue Leader

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And the manual for this model also fails to mention where the battery is. Although it does mention removing the battery if CLR_CMOS button fails to do its work. So it looks like those Asus boards indeed have battery under heatsink - which also means OP board is probably defective.

Unless maybe he leaves it unplugged so much the battery died? I mean still it shouldn't die that fast, and in the end even if it DID die it should still boot up and not require a hard CMOS reset via the rear button to boot.
 
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Jan 8, 2022
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FWIW I did the same with my old computers for years and the battery didn't run out. This computer is only 2 months old. OFC it could be an empty/faulty battery from the start but not very likely.

I've now written ASUS support. Let's see what they have to say about this.
 

ghj78

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Dec 27, 2019
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Having this same issue. Just turned gear mode to 1:1 in bios and now my system won't boot no matter how many times I clear cmos button or remove ram sticks.
 
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