All Questions
Tagged with psu or power-supply-unit
175 questions
Score of 0
1 answer
70 views
SATA issues and random reboots
I'm looking for help diagnosing an intermittent hardware issue on an HPC node and would appreciate any insight into whether this points to a motherboard/SATA/backplane problem, a power issue, or ...
Score of 1
0 answers
183 views
Supermicro power distribution board with 12VHPWR
I have a Supermicro 2U chassis with a power distributor board PDB-PT826-S4824 in it. And it should have support for the nVidia L40 graphics card.
It has 2 8-pin +12V connectors for powering PCIe ...
Score of 3
1 answer
972 views
Replacement the UPS APC Smart-UPS SRT 10000 battery while it's powered on?
I have an APC Smart-UPS SRT 10000 and need to replace the battery.
Would something bad happen if I replace it while it's still plugged in and powered on?
Or do I need to shut down the servers and ...
Score of 0
2 answers
1070 views
If I hot swap a power supply to a larger wattage, will it damage the server?
I have a Dell Poweredge R720 server with 2x redundant 750 Watt power supplies. If I wanted to upgrade those to 1100 Watts without shutting down the server and go through the process of hot swapping ...
Score of 6
1 answer
4062 views
Understanding ipmitool output for "Power Supply" (PSU)
This Ubuntu server has two PSUs, I just ran ipmitool and it reported as follows:
# ipmitool sdr type "Power Supply"
PMBPower1 | DFh | ok | 10.0 | 624 Watts
PMBPower2 | E4h | ...
Score of 0
0 answers
597 views
Cisco UCS C220 M4 PSU Fault In Diagnostics
Hello fellow Sysadmins.
A C220 M4 with the latest recommended firmware I am working on displays the following fault messages on latest version diagnostics at Server Health:
PSU1 PSU1_PWRGD: Power ...
Score of -1
2 answers
1214 views
What's the name of the component that allows a hot-swap power supply to slot-in and provides all the cables in a 1..4U server?
In contrast to consumer grade PSUs, server PSUs sometimes come without cables. From what I gather, these are usually of the redundant variety or so called "1+1" configuration. I wander if ...
Score of 1
1 answer
368 views
Is there any Linux mechanism to emergency-flush filesystem buffers on power loss?
A common "gotcha" with computers can happen when power gets cut to the computer without warning. Because the system loses power suddenly, it doesn't have a chance to flush cached filesystem ...
Score of 0
0 answers
2521 views
How to disable iDRAC status / alerts for absent PSU or input lost
I have a number of Dell PER740 servers running iDRAC 9 in a lab.
As they are in a lab, I only need/want/have capacity for one power supply connected to each server.
However, I cannot find a way to ...
Score of -1
1 answer
185 views
Is redundant power supply really redundant?
Apologize for my inexperience or if I am missing something important here...
Everyone kept talking about how good it is to have redundant power supply in servers, yet no one talks about a redundant ...
Score of 3
0 answers
73 views
Preserving a mothballed system: soft shutdown, PSU off or unplugged entirely?
I've got a system that looks like it's going to be kept around "just in case" (virtualization has already been explored). Long ago I had another such system but when when it needed to be ...
Score of -2
2 answers
660 views
Power limit in a 2x1600W server
I have a server with two 1600W power supply units (a Gigabyte GS-R22PHL if that helps).
Should I assume the maximum rated power is 1600W, and that the second unit is for redundancy, or that the ...
Score of 0
1 answer
126 views
Trying to convert a Dell T420 Single Drive to Redundant. Looking for validating my steps
I have a Dell T420 and read different ways to upgrade it to redundant PSU's.
Details
I saw on Dell's website a thread where a user asked how to upgrade to a redundant PSU versus the single 550psu. ...
Score of 1
0 answers
130 views
Using (dual) ATS for dual PSU server?
There's two parts to my question:
Does it make sense to hook up a dual PSU server to an ATS to speed up failover to the secondary circuit?
If yes, does it make sense to use two separate ATSes to ...
Score of 0
1 answer
2108 views
Required PSU Power for 12 HDD SATA 7200RPM (i have 20 A on my PSU peripheral channel)
I have a Tower server with today many hard drives and i would like to add hard drives for securing a raid group and also to extend storage capacity.
Hardware spec before adding everything else :
PSU :...