For the following systems
FMADIO-3412
FMADIO-5412
CMOS Battery has a life of about 5 years, the specific battery the systems use is shown below
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Any CR2032 is sufficient, same brand is NOT required.
Check Battery Voltage
FMADIO-5412 (100Gv2)
Going to the BMC web page
Step 1) Login to the BMC
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Step 2) Go to the Sensor page
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Step 4) Check the P_VBAT level
Expected to be close to 3.3V on a fully charged battery.
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Replacing CMOS Battery
FMADIO-5412 (100Gv2 )
The CMOS battery is under the FPGA shown below
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Once the FPGA has been removed the CR2032 batter can be seen next to the PCIe slot, as shown below
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