Asus ProArt Z790-Creator WiFi bios battery

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Pegi

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PC is 18 months old, boutique build, Asus ProArt Z790-Creator Wifi motherboard, no issues previously. Last week it started to go directly into bios on bootup. After I manually load the user profile and save, it will then boot successfully to desktop. It's been doing this most mornings for the last week.

When I contacted the builder, they say the most likely explanation is the battery has died and it's not able to save the profile but that this part is not a serviceable part of this motherboard. I was shocked that you can't change the battery on this particular Asus motherboard? Can anyone verify if this is actually true and/or whether I personally can change this?

The only options I had, the builder said, was to either never shut the computer off so I don't have to manually do this every morning or ship the computer in to them in order to replace the motherboard. Replace the motherboard for a dead battery?

This is both shocking and upsetting to me after spending over $5,000 on this build not so very long ago. If someone can offer any comments on this motherboard and/or the bios issue, I'd greatly appreciate it. I'm not very hardware savvy, but I can wrangle someone to help if given a little direction.
 
Supposedly the battery is under the plastic IO shroud which is screwed in on the back side of the board. The manual specifically references removing the button cell battery to clear the cmos if the header doesn't work but then never references where the battery is on the board. Really good documentation from Asus here.
 
Page xii on the manual shows motherboard layout and there is no battery shown, like typically you see a spot for a CR2032. I would agree the battery is the most likely culprit.

You should be able to replace it, but it will probably be a hassle. I couldn't find any teardowns on that board showing the whole PCB exposed, but the battery is on there, somewhere. It might be on the back of the board, it might be under an M.2 cover, or it might even be under the VRM and I/O shroud area. It might not be a traditional CR2032 and instead be similar to a laptop where it's on a header like:
1730817771041.png


Odd that it only lasted 18 months. But that's terrible design, I have never seen this on any desktop boards. If you keep a PC for a long time the CMOS battery will likely need replaced at some point.
 
Thank you for your responses; and thank you, Dopamin3, for the manual.

I am shocked that a reputable builder, with a reputation for carefully vetting their components, chose this motherboard. In any event, I can't do anything right now with a big project underway, so I'll live with it for the next few months. I will be updating the bios today, for whatever good that does. Down the road I will contact Asus and see what they say and possibly attempt to change it out. If I get too irritated about it, I'll pull and sell the 4900 and buy a new desktop from a different vendor.
 
Pegi said:
Thank you for your responses; and thank you, Dopamin3, for the manual.

I am shocked that a reputable builder, with a reputation for carefully vetting their components, chose this motherboard. In any event, I can't do anything right now with a big project underway, so I'll live with it for the next few months. I will be updating the bios today, for whatever good that does. Down the road I will contact Asus and see what they say and possibly attempt to change it out. If I get too irritated about it, I'll pull and sell the 4900 and buy a new desktop from a different vendor.
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Yeah I mean it's still a high-quality motherboard IMHO. I wouldn't necessarily knock the builder. Up until this thread I've never even took into consideration where the CMOS battery is. That's just poor design from Asus on an otherwise respectable board.

Who knows, maybe a BIOS update might fix it? While the issue described heavily leads me to believe the issue is the battery, on the flip side I've never seen one needing to be replaced within 2 years so maybe it's just a BIOS quirk. On average I would say they last at least 5 years.
 
Pegi said:
PC is 18 months old, boutique build, Asus ProArt Z790-Creator Wifi motherboard, no issues previously. Last week it started to go directly into bios on bootup. After I manually load the user profile and save, it will then boot successfully to desktop. It's been doing this most mornings for the last week.

When I contacted the builder, they say the most likely explanation is the battery has died and it's not able to save the profile but that this part is not a serviceable part of this motherboard. I was shocked that you can't change the battery on this particular Asus motherboard? Can anyone verify if this is actually true and/or whether I personally can change this?

The only options I had, the builder said, was to either never shut the computer off so I don't have to manually do this every morning or ship the computer in to them in order to replace the motherboard. Replace the motherboard for a dead battery?

This is both shocking and upsetting to me after spending over $5,000 on this build not so very long ago. If someone can offer any comments on this motherboard and/or the bios issue, I'd greatly appreciate it. I'm not very hardware savvy, but I can wrangle someone to help if given a little direction.
Click to expand...
Hey,

I run into same problem and I wonder if you ever replaced your battery and if so do you maybe remember what type was it and if you maybe got a replacement module with the cable or have you spliced the old one etc.?

Let me know if you can.
 
sebna said:
Hey,

I run into same problem and I wonder if you ever replaced your battery and if so do you maybe remember what type was it and if you maybe got a replacement module with the cable or have you spliced the old one etc.?

Let me know if you can.
Click to expand...
Ultimately, I don't think the CMOS battery was the problem for me, so I never dug too deeply into that research. For my issue, I reinstalled win 11 fresh and then all the various drivers, chipsets, updates, firmware, etc., and tinkered some with the bios settings. CMOS is saving the bios settings, so I doubt the initial problem was the fault of the CMOS battery. The PC has been usable since then. In fact, I'm using it still right now. It's not perfect; there is *something* still wrong somewhere (I will occasionally get unsupported boot drive messages...even as recently as last week...and I still have some yellow exclamation marks on PCI devices in my device manager even though I have no unaccounted for PCI devices), but at least it's not loading into bios every morning.

Sorry I couldn't be of any help with your battery issue. You might contact ASUS support and see if they can't clarify how to change out the battery.
 
Pegi said:
Ultimately, I don't think the CMOS battery was the problem for me, so I never dug too deeply into that research. For my issue, I reinstalled win 11 fresh and then all the various drivers, chipsets, updates, firmware, etc., and tinkered some with the bios settings. CMOS is saving the bios settings, so I doubt the initial problem was the fault of the CMOS battery. The PC has been usable since then. In fact, I'm using it still right now. It's not perfect; there is *something* still wrong somewhere (I will occasionally get unsupported boot drive messages...even as recently as last week...and I still have some yellow exclamation marks on PCI devices in my device manager even though I have no unaccounted for PCI devices), but at least it's not loading into bios every morning.

Sorry I couldn't be of any help with your battery issue. You might contact ASUS support and see if they can't clarify how to change out the battery.
Click to expand...
A quick addendum...I pulled up all the old emails from the boutique computer maker regarding changing the cmos battery. He said: It is a CR2032, but you'll need one with the connector instead of just the coin battery. Here's a link to one that would work: https://www.amazon.com/LJCELL-Battery-Laptop-Backup-Connector/dp/B0BYK3CL6Y/

Again, I didn't explore the whole cmos battery thing myself so I can't vouch if this will work for you, but the advice I've gotten from this company before is usually pretty good.
 
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