7 votes
Accepted

Is it possible to convert 4-pin floppy to SATA power?

Yes, it is legit. All of these adapters use +5V or +12V pins with some earthing. The adapter what you want to buy does only the physical conversion, because no electrical conversion is needed. You ...
peterh's user avatar
  • 4,970
6 votes
Accepted

Redundant UPS with 2 power sources

You're looking for a power distribution unit (PDU) with an automatic transfer switch (ATS). The PDU can choose a power source from two (or more) sources to use -- in this case, it would use one with ...
lungj's user avatar
  • 296
6 votes
Accepted

Why do servers have 2 PSU?

You have two power supplies for redundancy. Assuming they are hot-plug, if one fails you can replace it while the system is still running. You could also run to separate servers in your data center ...
Zoredache's user avatar
  • 132k
5 votes

Can I hot-swap a 2-PSU server from 120 to 240 volts?

You can, but you probably shouldn't. Can you try it with a less important server? Also, the make/model of the system may make a difference. Edit: I'm shifting a rack from 110V to 208V and decided ...
ewwhite's user avatar
  • 198k
4 votes

How do I get the power consumption of a Supermicro server on the CLI?

You can also just: ipmitool dcmi power reading
user586903's user avatar
4 votes

HP ProCurve 5412zl warm-boots on power failure while attached to UPS

According to this page, your UPS series is of the "line interactive" type. This designation means that it isn't constantly converting the utility power to DC and back to mains level again. Rather, it'...
Mels's user avatar
  • 685
4 votes

Can I hot-swap a 2-PSU server from 120 to 240 volts?

Assuming the power supplies support both voltages, then it will not be a problem. The PSUs output the same DC voltage either way.
psusi's user avatar
  • 3,387
4 votes

Cannot boot server after power failure

After rapidly switch on off the psu in furious rage, the server finally boots.
Syaiful Nizam Yahya's user avatar
4 votes

HP Proliant DL380 G7 power calculation

The ILO will tell you how much power is being used. But if you need a reference, here's what current statistics look like on a system with the following specifications: 2 x Intel(R) Xeon(R) X5680 @ ...
ewwhite's user avatar
  • 198k
4 votes
Accepted

Understanding ipmitool output for "Power Supply" (PSU)

According to the man page, lnr means "Lower non-recoverable" which suggests strongly that it's time to get a replacement for PSU2. The AC Lost and PWR Detect entries would almost certainly ...
tsc_chazz's user avatar
  • 1,903
3 votes
Accepted

Daily Cost to run Dell Power Edge R900 and HP DL580 G5

Long answer and details First of all, power cost usually goes in energy units of kW*h (not kW), e.g. $N if you consume 1kW for 1 hour. Then you pay $24N for 1 day. I guess you pay $0.11 per every kW ...
aaaaa says reinstate Monica's user avatar
3 votes

Server dies unexpectedly

I'd be very surprised indeed if this wasn't a serious hardware issue - you need HPE to help you, log a case and work with them to replace the faulty parts. At this stage it could be a number of parts ...
Chopper3's user avatar
  • 102k
3 votes
Accepted

HP ProCurve 5412zl warm-boots on power failure while attached to UPS

My initial and immediate thoughts are along the lines of what you're contemplating. If these blips are occurring independent of any self-test schedules you have set up on the UPS (if the blips happen ...
vigilem's user avatar
  • 589
3 votes

Loud Pop from DL380G5--then neither PSU lights up when plugged in

Who knows? It's 10+ year-old equipment. It likely needs repair. You can try replacement parts because they'll be inexpensive at this point, but you may have to replace several components.
ewwhite's user avatar
  • 198k
3 votes

Why do servers have 2 PSU?

As two power supplies are for redundancy, a single PSU should always have enough capacity for the whole server: you could leave the other one unplugged, if you wish. Redundancy for environmental ...
Esa Jokinen's user avatar
  • 49.8k
3 votes

Random shutdown, then doesn't power-on until power-plug is pulled out from wall and plugged back in

It's good that you mention that your (EOL since 2014) Windows XP is not connected to the Internet. However, that's not the only thing that's extremely old here. The discontinued Intel DG31PR is from ...
Esa Jokinen's user avatar
  • 49.8k
3 votes
Accepted

Random shutdown, then doesn't power-on until power-plug is pulled out from wall and plugged back in

To me, those symptoms suggests that the PSU in the machine is failing: as soon as its internal control circuits detect the PSU is failing to keep the output voltages in the required ranges, they will ...
telcoM's user avatar
  • 4,618
3 votes

At my wits end. What could cause my server to randomly hard reset? (Seems to be related to ZFS)

Since I've been at my wits end in a similar situation I thought I'd post what ultimately helped me. It might not be exactly related to your situation, but maybe some other poor soul can stumble upon ...
href_'s user avatar
  • 171
3 votes
Accepted

What does orange light on power supply mean?

https://www.intel.com/content/www/us/en/support/articles/000007372/server-products/server-chassis.html The system Power Supply is in a degraded or in a failed state if any of the following is ...
4per's user avatar
  • 129
2 votes

HP ProCurve 5412zl warm-boots on power failure while attached to UPS

With the info you just added in the edit it is pretty clear. 2 possible causes come to mind: 1) The UPS when it is actually needing to do the work slightly drops it's output voltage and the rate ...
Tonny's user avatar
  • 6,352
2 votes

MGE UPS Switched PDU

To those that may have this same device I found the default username/password. It is MGEUPS/MGEUPS
Michal T's user avatar
  • 121
2 votes

Can I hot-swap a 2-PSU server from 120 to 240 volts?

No. It will not cause problems to power one PSU at a different voltage for any length of time, including indefinitely. It will make load calculations confusing if you plan to run like this ...
Billy left SE for Codidact's user avatar
2 votes

Power requirements for SAS enclosures

I'm not an expert on storage controllers, but it seems to me that the rest of the power is coming from the 12v line. 3.5" hard drives require both 5v and 12v, so the drives are probably getting most ...
B00TK1D's user avatar
  • 685
2 votes

HP Proliant DL160 No Power Meters detected?

This model is too low-end to provide the power meter monitoring functionality. This is a differentiating feature that is present in the HP ProLiant 300 and higher series.
ewwhite's user avatar
  • 198k
2 votes
Accepted

HP Proliant DL160 No Power Meters detected?

Does the "no power meters detected" mean that my powersupply doesn't support that feature? This isn't feature of powersupply, this is feature of whatever connects PSUs to everything else - DL160 G6 ...
axapaxa's user avatar
  • 136
2 votes

Halt, not power down, a windows server

Sounds like you need to set your BIOS / UEFI settings for power state to "always on" rather than attempting to restore the machine to its last state. This way, when power is cycled to the PSU (when ...
Spooler's user avatar
  • 7,136
2 votes

spontaneous reboot, machine check events, AMD ryzen

It seems this is a CPU hardware problem. In the AMD community forums (https://community.amd.com/thread/215773) it was suggested to either disable SMT or OpCache as a workaround until this gets fixed. ...
mpreiner's user avatar
2 votes
Accepted

HP DL180g6 requires operator intervention to boot on one power supply

It's possible that the previous owners changed the POST (Power On Self Test) settings. Reboot the server and enter the BIOS, on the first page scroll down to the bottom and you should see an option ...
Jon Angliss's user avatar
  • 1,782
2 votes

Safely conduct tests that require unplugging server

You have an HP ProLiant DL380 G7. Look at the following: The Systems Insight Display (SID) shows the health of the internal components. If you have an amber light on the either of the power supplies:...
ewwhite's user avatar
  • 198k
2 votes

Why do servers have 2 PSU?

For a more complete answer than the ones already present: Two (or N+1) PSUs are about redundacy but not only that of the PSU - the other causes are much more likely. Multiple PSUs are usually also ...
Zac67's user avatar
  • 11.7k

Only top scored, non community-wiki answers of a minimum length are eligible