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Dell R510

MY Dell R510 is running an OS which will not allow for an installation of Open manage to determine what is wrong with one of my power supplies.  The LCD read out in the front panel is displaying power supply 2 750w error, and I have no way of checking it further.  Is this a reliable source for indicating a bad power supply?  It seems to be 2 months out of warranty and they dont have the money to renew.
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"Is this a reliable source for indicating a bad power supply?"

Can be, but not always.  For example, if they experienced a power outage or someone pulled a power cord or a power supply, it would show a power supply error, and "may" do so until the log is cleared or the system is rebooted.

Is the light on the power supply on (blue) or off or amber?

What OS are you running?

You can try to reseat the power supply in question to see if the status changes ... and double check its outlet.
I'd consider that a valid error display. It looks like your 2nd PS is dead. I'd order a replacement from dell or a 3rd party.
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I did try a different outlet and reseated the power supply.  I also am running Linux Ubuntu.  From what I have seen in the Dell manual it looks like a bad supply.
If the light on the PSU is off or amber and nothing like a UPS/power failure has occurred, then it most likely is a bad PSU.
Those test should prove the PS is bad. I don't think Dell has a Linux version of the OSA app to view the logs. I'd say replace the PS. If you have a flashing Amber light on the back, that means there is a system level failure along with the LED in front.

Hope this helps!
They do have a Linux version of OMSA, but I believe it is only supported on enterprise distros like RHEL and SUSE/CentOS.
Have you been able to replace the PSU? Is the Status LED and from panel showing a stable system now?
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We didn't have a power supply on hand to replace it with so we decided to consult Dell.
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Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.

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