Hi, there.
We have a host where an alarm "Host hardware voltage" is triggering regularly:
The trigger executes when the value of the "System Board 45 PVNN PCH" sensor is above 1.05 Volts:
I've checked IPMI sensors on the motherboard and they seem alright:
As we can see the related sensor "PVNN PCH" is within critical thresholds. Supermicro says nothing about this sensor. At least I didn't managed to find this information.
Also I didn't find at the official Intel chipset documentation "Intel C620 Series Chipset Platform Controller Hub (PCH)" what does this sensor mean, but I found out at "Intel 9 Series" the following table:
As far as I understood, according the article "Inaccurate Monitoring and Health Status seen in vSphere Web Client, vSphere Client, or vCenter Serve...", VMWare retrieves values of Voltage sensors via IPMI. The article also says:
Some information available from the hardware vendors may be incorrectly or incompletely displayed in the VMware Infrastructure (VI) Client, vSphere Client, VirtualCenter, or vCenter Server.
I had decided to update IPMI and BIOS, but unfortunately it didn't help.
Did anyone run into this problem? Can we ignore the alert? May be there is a misconfiguration at BIOS parameters or somewhere else. Is any way to check/adjust this parameter (or related to this parameter) there?
Configuration:
| OS | ESXi = 6.7.0, 14320388 VTC = 6.7.0.42000 |
| Platform | Manufacturer = Supermicro Model = X11DPH-i CPU = 2 x Intel(R) Xeon(R) Silver 4114 |
| IPMI and BIOS | IPMI = 01.71.11 BIOS = 3.3 |
| Location | The host is located in a data center with several ones. We don't have problems with cooling or power supply and other hosts are fine. |
