Questions tagged [power-supply-unit]

Questions related to power supply units, aka PSUs

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35 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 :...
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0answers
97 views

HP ProLiant DL360p G8 System Health Light is flashing red

My HP ProLiant DL360p G8 health LED is flashing red and when I press the power button, it changes from amber to flashing green and back to amber. The PSU light in the back is not coming on either. I ...
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1answer
32 views

HP PROLIANT 1300w hstns-pa01 PSU orange/amber light

I bought an HP Server PSU (For mining) - HP PROLIANT 1300w (hstns-pa01) - I plugged it in and it was working perfectly for 12h and 20min, then the rig shut down ( because no power) but PSU fan was ...
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1answer
41 views

Grounding of a server rack on wheels

I have a 42HE 19” server rack which houses a bunch of equipment (UPS, PDU, server, network, ...). It has wheels so it’s easy to move and it stands on a concrete floor. The rack is out of metal and ...
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0answers
29 views

What power rail (12, 5 etc) powers RDIMM memory

TLDR: is RDIMM memory powered by 12v 5v or 3.3v rails from standard 24-pin 2-EPS ATX PSUs? I understand this could vary by manufacturer, but on my Super Micro EATX motherboard I am attempting to power ...
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1answer
48 views

How to power-up PSU from Proliant DL185 without mobo?

I have an old Proliant DL185 G5 server with a 447325-001 Power supply backplane. Two connectors seem to be interesting, one is what looks like an ATX-power connector and connecting green to GND spins ...
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0answers
36 views

Dell T420: can I replace the original non-redundant power supply with two redundant ones?

A Dell T420 bought in 2015 was originally configured with the single 550W non-redundant power supply. Replacement parts are cheap these days, and I'd like to replace the single P/S with dual ...
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1answer
40 views

Can I safely run a server with redundant power supplies off of a standard 15 amp outlet?

I purchased a used HP Proliant DL380p Gen 8 off eBay. It has dual redundant power supplies, both at 750 watts. Doing the math, I realize that if both PSUs are at peak load, they will pull 12.5 amps ...
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1answer
176 views

how to turn on Server power supply Lite-ON model PS-2122-8L1 without server chassis [closed]

I wanted build 48v DC power from 4 12v power supply units. Eventually i got my hands on Lite-On PS-2122-8L1 server psu. But after getting it, i am still unable power it on with out chassis. i mean i ...
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23 views

using “ipmitool” with “pef” option to ignore a specific event

IPMI sel logs is full with a specific error related to "PSU input voltage is under 220v". I believe that I can use "ipmitool" with "pef" to ignore the error message. Can ...
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1answer
48 views

HP DL380 G7 Power Calculation

My current Config HP DL380 G7 2x E5620 CPU (80 W each) 8x 16 GB 1000 MHZ DDR3 Ram 4x Sata SSD Dual 460 W Power supply. Can I replace cpu's with Dual X5675 (95 W each) ? HP ...
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0answers
52 views

Newbie to Supermicro redundant PSU

Until recently I have never had a redundant PSU or a rack server for that matter. So, I think maybe I did this wrong? I have a Supermicro FatTwin 6026TT-HDTRF (CSE-827HD-R1400B case) that comes with a ...
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1answer
173 views

Server suddenly very sensitive to minor brown-outs

We have a number of SuperMicro RAID 10 boxes with redundant PSU, the same model and spec and use the same rackmount APC UPS. One has suddenly taken to rebooting if there is a minor brown-out. ...
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0answers
50 views

Step up voltage converter in datacenter?

I am setting up a rack in the data center that only has 110V. It is redundant, so I thought I could take one from each leg and get 110V, but when I used a voltmeter last night they somehow are on the ...
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1answer
1k views

What does orange light on power supply mean?

I have an Intel® Server System P4000CP Family. Today I've discovered that one of power supply has green light, second power supply has orange light. What does it mean?
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1answer
194 views

Rel-time monitoring on Redundant PSU's

we're using 3 HP DL380 Servers with redundant power supplies and vmware esxi hypervisor is installed. is there a way to determine the actual status of the power supplies in real-time? current voltage ...
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1answer
265 views

Zippy/EMACS G1W2-5760V3V Power supply manual or pinout information

I now have two different sizes of emac's power supplies and both have 2 extra pairs of wires, Red and black as well as yellow and black. On the model above they both have 2pin push connectors with ...
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1answer
36 views

Using one power supply for my SunFire x4100

Is there a risk on using just one power supply on this server?, I just found out that you can POST and run stuff with only one power supply (even tho I still get the LED errors) , I read the manual ...
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2answers
415 views

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

I have a server that I built years ago that has worked like a champ. But within the past few months it has started to become seriously unstable with no discernible pattern. I have been debugging it ...
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1answer
20 views

On boot, server pulls full load of both PSUs — any way to limit this or mitigate load spike?

I have a giant 24u server (Supermicro 4U X9DRI-F w/ 2x Xeon E5-2680) with 2 1200w PSUs. However, I only have 4 drives in right now, and my actual power draw (under the most stressful loads) is likely ...
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0answers
758 views

What PSU form-factor do I need?

So I finally got my Fantec SRC-2080x07 2U server chassis replacement. Only to find out that the Be Quiet TFX Power 2 300W Gold PSU that I ordered, is too small to fit. Here's a picture of the PSU ...
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1answer
91 views

Does it make sense to connect a redundant power supply to a C14 splitter?

Recently visiting a small data room, I noticed that redundant power supplies of a server are connected through a C14 splitter which, in turn, is connected to a single socket of a UPS. I told the ...
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2answers
1k views

Power Supply Information

Is it possible to view power supply information of a remote Windows (2008) server? It's a Dell Poweredge R720 The physical server is in a remote location and I only have RDP access. I can't see ...
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2answers
71 views

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

We have a workstation machine which, for the past three days, shuts down (apparently) randomly. After it shuts down, if you press the power button, the machine won't start. However, if you pull out ...
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4answers
10k views

Why do servers have 2 psu?

I have a Dell power edge 2900 server and it has 2 psu, so Can I run the server by having one psu plugged in. i am not going to have this server on all day and night. i am just using it to learn more ...
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1answer
172 views

HP DL360 G5. Doesn't start if power cable plugged in PSU1

I bought an used server. When I plugged in a first PSU (the one near sidewall) a power cable, some fans turned on, a led on the front panel light orange, on mobo green leds works. When I press a power ...
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2answers
44 views

Power server when power is on (No Bios access)

I have 3 servers and one is old hardware. I have frequent power outage due a Kw limit. I know there is an option in the BIOS to power on a machine when there is power. 2 servers does have this AC ...
2
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3answers
318 views

Safely conduct tests that require unplugging server

So, basically I am testing and diagnosing my UPS's as well as the power sources (PSU) of my server. For that purpose I am powering down the server "the hard way", by unplugging it from the wall as to ...
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1answer
367 views

HP DL180g6 requires operator intervention to boot on one power supply

Summary: Used DL180g6, with redundant power supplies, that just came in will not boot unless either both supplies are powered or the operator presses F1 on the keyboard. If 2nd supply comes up after ...
4
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1answer
5k views

HP Proliant DL380 G7 power calculation

HP Proliant DL380 G7 in year of production has alternative PSU: 750W in "performance" configurations with 2 CPU 460W in "base" and "entry" with 1 CPU "Power advisor" calculator is not accesible in ...
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1answer
236 views

Sun Fire v440 does not power on

I have an old Sun Fire v440 server which was in working condition before a shutdown a few months ago. Today I tried to power it on but nothing happens when I press the power button. On both PSUs ...
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1answer
40 views

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

I wanted to fire up my old DL380 G5 server recently, and maybe one second after I hit the power button and the fans started to rev up, I heard a loud pop and suddenly it shut down. Now neither PSU ...
3
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2answers
326 views

Redundant UPS with 2 power sources

I've 2 power sources in my house: One from the national power grid and another from an internal power source. I've several power sockets in my server room from these 2 sources. Did some research and ...
5
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1answer
3k views

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

I just bought a server and realized that it had power for all my drive bays, but not for the internal SSD I bought for it. It does, however, have 2 free 4-pin floppy power connectors: Is it possible ...
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1answer
201 views

600W PSU max Watt load [closed]

I have purchased an EVGA 600W Silver PSU. It is connected to the following: Motherboard + CPU + SSD + 3 x Video Card (RX 470 with riser cables). I have a watt meter which I have connected to the PSU ...
5
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1answer
3k views

spontaneous reboot, machine check events, AMD ryzen [closed]

I've been running a brand new system on arch linux for about 3 weeks, and last night it spontaneously rebooted. There's no shutdown/halt in journalctl at the time of the reboot, so I'm pretty sure ...
0
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1answer
683 views

Power Led Error in IBM/Lenovo M5 X3100 Server

I have a x3100 M5 Lenovo/IBM machine that is being used as file server. As of yesterday it had two 2.5" Samsung SSD's plugged in. Today I tried plugging in 2 x 3.5in 4TB hard drives, and when I tried ...
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2answers
239 views

HP Proliant DL160 No Power Meters detected?

I've recently installed the hpasmcli on my ProLiant DL160 G6 and wanted to see what kind of power draw it was having. However, when I try to use the show powermeter command, I get a "no power meters ...
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1answer
72 views

Halt, not power down, a windows server

A client recently changed their UPS and now claims that their server is not coming back up after am extended power outage. They have tested their system and it will keep the last state, so if the ...
3
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2answers
2k views

HP ProLiant server - PSU error despite replacing PSUs

We have a HP ProLiant ML350 G6 server causing us a few problems. The main symptom was that every so often we would find the server simply powered off. We turned the machine back on and investigated ...
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4answers
347 views

Redundant Power Supply Sloshing (If sloshing is the right word)

I have a Supermicro Redundant Power Supply with two units in it. I also have two UPS units, one for each of the Power Supplys. I was watching the LCD on the UPSs for the watt usage. The total watts ...
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2answers
907 views

Power requirements for SAS enclosures

I have a Supermicro 4u enclosure with dual 1400 watt power supply running on 220v. There are 24 drive bays. The power supply is rated at 4amps for the 5v output. If I have 24 drives that requires ....
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0answers
219 views

Raid drives continue to fail perc 6

SERVER: Dell T410 Raid Controller: Perc 6/i What is the best way to diagnose root cause of failed drives? Back story: So I had a 4-drive Raid 10 + 1 hot spare setup. This setup worked for years, ...
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1answer
899 views

IPMI data for power supply missing

I have 3 Supermicro AS-1042G-TF servers and on one there is no data shown for power supply, JAVA application for MAC shows an empty window as do IPMIView apps for iOS and Android, on Android there is ...
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1answer
1k views

bladesystem c7000 power supply error

I have a hp blade system c7000 with six power supply connected. it turns on with critical error in power supply #1,2,5 and I can't see the power supply 1,4,6 in onboard administrator interface. I ...
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1answer
30 views

Random drive loss about every 24 hours

I have a megaraid 9260-8i with a 4 disc raid 5. For 6 months or more the array has been performing beautifully, but recently the hardware alarm went off and the status said one of the drives was ...
0
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2answers
126 views

Server dies unexpectedly

I have a HP Proliant DL380 G8 server that for the past couple of weeks, just suddenly dies. It's happened twice today. The lights on the HDD are just lit instead of blinking, and there is no response ...
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1answer
2k views

Identification of Power Supplies on Windows Servers

First off, I'm not sure if this is the right form, but it seemed like the best fit. For a management automation project, I am trying to identify the power supply units on servers across my network. ...
1
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1answer
416 views

Need circuit diagram for hp-r650ff3 power supply [closed]

Can somebody please provide a circuit diagram for a HIPRO HP-R650FF3 swappable power supply unit? One of those which is built in one of our main servers went down after a company wide power failure ...
0
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1answer
325 views

Power supply logging on HP DL360 G6

We have a HP DL360 G6 server connected to APC Back-UPS 1100 (BX1100CI-RS). The server sometimes unexpectedly reboots (administrator gets the "select the reboot reason" window after logon). According ...