X470D4U shows 0v on CMOS battery

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   I have a ASRock Rack X470D4U motherboard, with Ryzen 3600X processor, 8 GiB UDIMM. 

Strangely, the BMC reports CMOS battery voltage is 0v, and issues an alert (of course).

Tried:
- Upgrade BIOS (3.30, L3.37)
- Upgrade BMC F/W (01.90.00, 02.05.00)
- Replace CMOS battery with new one

Well, none of them worked out.

P.S. I have a digital multimeter so I can confirm the actual battery voltage is normal (around 3V).

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helixzz Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 08 Oct 2020 Status: Offline Points: 6	Post Options Post Reply Quote helixzz Report Post Thanks(0) Quote Reply Topic: X470D4U shows 0v on CMOS battery Posted: 08 Oct 2020 at 9:39pm
	I have a ASRock Rack X470D4U motherboard, with Ryzen 3600X processor, 8 GiB UDIMM. Strangely, the BMC reports CMOS battery voltage is 0v, and issues an alert (of course). Tried: - Upgrade BIOS (3.30, L3.37) - Upgrade BMC F/W (01.90.00, 02.05.00) - Replace CMOS battery with new one Well, none of them worked out. P.S. I have a digital multimeter so I can confirm the actual battery voltage is normal (around 3V).

helixzz Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 08 Oct 2020 Status: Offline Points: 6	Post Options Post Reply Quote helixzz Report Post Thanks(0) Quote Reply Posted: 18 Oct 2020 at 2:16pm
	Update: After few days (continuously running), the reported voltage came back to normal. I did nothing at all. Strange issue.