On one ESX 4.0 server i'm getting Host hardware voltage alert every 5 minutes. When i click on reset sensors in Hardware status tab then it disappeared but only for a short period and then comes back. I's real pain in the ass problem. I allready changed battery on motherboard but it didn't help at all.
We have IBM BladeCenter HS 22 and the latest firmware for UEFI and IMM.
System Board 1 Planar VBAT
Alarm 'Host hardware voltage' on x.x.x.x changed from Red to Green info.
I have lots of HS22s that have experienced this issue. I think IBM must have put dodgy batteries in their servers. It is possible you replaced your old one with another dodgy one. I have replaced a bunch of these batteries and I have another VBAT error just come up recently. They seem to be okay when I put a non IBM battery in.
You may be better off getting cheap batteries from another supplier then IBM.
Or it may just be a bug. 😕
You need check logs in IMM of this server.
I found this link with error codes: http://publib.boulder.ibm.com/infocenter/bladectr/documentation/index.jsp?topic=/com.ibm.bladecenter...
Maybe you there a problem with this hardware, open support in IBM to check it and change a battery if necesary.
Generally i see this behavior when: