problem about rp8400's core IO

[stephen peng]

dear all,
i've got the following messege in event.log:
Chassis Code Keyword NVRAM_BATTERY_FAIL.
The battery on the SBCH is below the safe threshold. The battery can be
replaced online.
do i need to replace the core IO? or just change the battery or core IO? and what is the product number of rp8400's core IO?

thanks a lot

[nanan]

Hi stephen

I hope you don't replace Core IO
The first step is replace the battery

and here are core IO part NO
two kind of core IO for Rp8400
CORE I/O, MP A6096A A6096-69201 old Core I/O; has no MP SEL LED!
CORE I/O, MP A7109A A7109-69001 new Core I/O; has MP SEL LED!


Regards
nanan

[stephen peng]

nanan,
thank you for your reply!
how to replace the battery? it is hard to operate? which kind of battery i should use?
look forward for your reply!

[nanan · Accepted solution]

Stephen
Here is the part NO of Battery
BATTERY FOR MP 1420-0356 CR2032, 3V; for new and old MP


and I attached the procedure core-io replacements.


Good luck