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T420 PS1 showing failure
Hi all, I was logged into my iDrac last night and noticed in the Summary that my PS1 was showing a status of Present | Failure. I checked the logs and on Aug 25th, there was a fan failure on PS1 and PS2 at different times, but then power was restored. I did shut the server down to install an APC UPS and plug one of the power supplies to it and the other PS to my main power source. I honestly don't recall which one it was though.
So my question is this something that needs to be cleared, or is my PS1 actually failing? I'm looking at all the reading for power use from both power supplies and they both read as working and nothing seems out of the ordinary, which is curious.
On a side note, I'm checking my power configuration settings, and i am noticing that PS1 is my primary power source, redundancy policy is set to not redundant, hot spare is enabled, and power factor correction is disabled. I would like it to work that if PS1 actually did fail, either due to the hardware going bad or the power goes out that it is attached to, that PS2 would be failed over to. For the settings i have currently, would that work, or do i need the redundancy policy set to input power redundant?
Thanks for your time!
DELL-Charles R
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September 17th, 2021 10:00
Hello the.mknabster,
Check in the iDRAC > Overview > Hardware > Power Supplies
PartNumber will show something like: 0RYMG6X02
Drop the leading 0 and the part number is the next 5 characters. You can use that to search the firmware page with the part number.
DELL-Charles R
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September 17th, 2021 10:00
Hello the.mknabster,
Our 12th generation power supplies can report false positive errors - a warning that presents as a failure. It is a firmware problem that is resolved by updating the iDRAC, BIOS and power supply firmware. Ensure firmware took, including PSU completed successfully, then draining flea power - remove all power cords, hold power button for 20 seconds, re-plug cords and power up.
NOTE: The most important thing to know about the power supply firmware is that it installs when the server is "powered down". It seems like the server is off and it updates the LCC first, restarts, updates one power supply, shuts down, updates the 2nd. Do not power the server off or on during that time. It will kill the PSUs. It can sometimes take up to 20-30 minutes for the complete PSU firmware update process.
T420 Firmware page: https://dell.to/3EvOm8m
the.mknabster
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September 17th, 2021 10:00
Thanks for your response Charles! I checked the firmware page and i see two 750W packages, one for Emerson and another for Flextronics. What would be the best way for me to find out which is for mine? The service tag doesn't seem to go that deep into the info, unless i missed it.