The power-supply tag has no wiki summary.
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1answer
42 views
How to calculate total / max electricity consumpton for a server / or hardware equipment.?
Consider I have in the cisco 2911-sec/k9 data sheet following power values
Maximum Power with AC Power Supply (Watts) 210
With this given value how can one calculate total electricity produced or ...
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1answer
56 views
Could the Input/Output or some other difference between adapters/chargers cause this? [closed]
I have a laptop and my adapter/charger could not be used anymore as the cable was cut.
So I bought a new adapter but it was slightly different than the original.
My original had (Toshiba's original): ...
1
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2answers
80 views
Redundant Power System integration
We currently have a stack of catalyst 3750's at the core of our network. We just purchased two new 3750's to split off our VMs and SAN onto their own switches and away from the stack.
These two new ...
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2answers
42 views
Power requirements for server setup at home [closed]
I am trying to host my website at home and for this, i am trying to do some power wiring to bring in the needed power in terms of amps. I want to know any document which talks about,
how to determine ...
1
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1answer
55 views
Is a 650W PSU enough for 4x 7k HDDs 2x CPUs and a monster AMD Radeon HD 5990 [closed]
I bought a supermicro chassis a few years ago with a 650W PSU for a personal lab I built. Everything has been just fine so far, but now that I'm looking into some GPU based work, I'm finding that I ...
0
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1answer
95 views
can power supply affect I/O [closed]
I have a dev server machine running Ubuntu 12.04. For a long while it's been throwing intermittent errors where it would suddenly tell me "File system is read only" or drop into a GRUB error console ...
1
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1answer
100 views
What is the % Energy Savings of a Dell energy efficient Power Supplies worth the extra cost? (I.e., what's the payback period)? [closed]
Dell offers an extra efficient power supply (PSU) with some products, such as their Optiplex 9010,which I'm considering buying.
They say it's 90% efficient but don't explain exactly what that means ...
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1answer
61 views
Power Supply And Power Cable at Equinix Palo Alto? [closed]
I will be doing a server installation at the Palo Alto Equinix Data Center soon and I'm coming in from overseas so I wondering if any of you can help me out regarding power supply can power cable ...
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2answers
59 views
What's the deal with using unreliable green energy in datacenters? [closed]
The news say that Google now uses 48 MW of electricity produced by wind turbines to power one of its datacenters.
I've always heard that "green" energy is great, but it is unreliable - wind doesn't ...
8
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2answers
719 views
How can I calculate if a UPS is sufficient for my requirements?
I am not that of an electricity knowledgable person, so I'll try to put as much info as possible.
I have a Rack Mount UPS of 1800 Watts Model: PRP 3050 RM (in total I have 2 of these - talking about ...
2
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1answer
117 views
Two servers, two PSU's, Two UPS
I have two server, with redundant PSU's connected to two UPSs.
The UPSs are APC Smart-UPS 1500VA and I want to shut down the servers when the power gets low. However, because I have a redundant PSU ...
2
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2answers
164 views
Conference Room Under The Table Power Pack Mounts
I've currently got 12 notebooks, HP ProBook 4535s, that are being used by a local government group for board meetings. These are used only for the board members during the board meetings and only to ...
0
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1answer
121 views
How much power supply do I need for my server, and could a shortage be causing my odd crashing?
I have 5 servers, all with similar hardware (i7, four 2tb 7200rpm drives, two 4tb 5400rpm drives, 430 watt power supply), and lately the machines have been freezing up. This has gotten worse in the ...
1
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2answers
2k views
HP Proliant DL380 G7 won't power on, UID light works, ethernet lights blinking, power button solid orange
Momentary press and long press of power button does nothing.
Can get in through iLO but pressing the button there does nothing.
This started after our block had a power failure but all our servers ...
0
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3answers
100 views
Router Power Supply [closed]
I have a wireless router that needs a 12VDC 1A power supply. I no longer have the power supply for it. Is there any harm in using a 12VDC 1.2A power supply instead?
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1answer
39 views
PC Shutting Down Without Warning [closed]
I have a Windows 7 PC that is shutting down without warning, seemingly at random. Here are the symptoms and notes:
PC seemingly turns off completely. After taking off the cover it turns out the ...
2
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2answers
74 views
What are the essential considerations for setting up systems in a location with unreliable power?
I deal with a lot of remote offices located in parts of the world where the local grid power supply is unreliable.
Power can go off anytime with no warning, with outages ranging from minutes to days
...
2
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3answers
132 views
Chasis reset button vs remote power recycle
Ocassionally one of my remote windows servers locks up and must be restarted by pressing the restart button on the front of the case. Since I work remotely I call a coworker to press the button.
I ...
0
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3answers
137 views
Powering an IBM x335
I've just purchased a second hand IBM X335 server in order to introduce myself to server hardware and management. Having never used such equipment before, I have much to learn, so please forgive me if ...
14
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3answers
2k views
How does a 3-Phase UPS distribute power?
We've got 2 UPSes in our server room. One's 3 phase, and has a 3phase supply, yet the APC network stats thing only says
Incoming Voltage: 230.1 Volts
The other is a single phase one with no ...
2
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3answers
777 views
How to measure server power consumption?
We have data center running more than 2000 servers. We are planning to shutdown the servers on a weekend for cost cutting purpose. How can we calculate which servers are consuming more power in the ...
3
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5answers
476 views
A plan to mitigate PDU failures?
A client just experienced a complete failure of an APC AP7911A switched/metered rack power distribution unit. This obviously took all of the connected equipment down with it. The equipment is fine, as ...
2
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2answers
170 views
How much power draws a redundant PSU?
One supermicro enclosure comes with "3 SP382-TS 380W Power Modules for a total of 760W".
2x380W = 760W, okay, but there are 3! So where is the missing third 380W equalling to 1140W?? Is it ...
0
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1answer
58 views
How does a server power supply withstand unto toggling the power?
My server will run only weekly for 2 hours for backup purposes. After I finished the backuping I pull out the power plug from the power outlet.
How does a server power supply withstand unto toggling ...
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5answers
318 views
Server's power supply always on even if it is turned off
I just bought a used HP ProLiant ML350 G4p server and it's power supply gets working immediately after I plug it into power outlet. (the fan is spinning, and the unit consumes 20W of energy) The ...
0
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1answer
440 views
Dell Poweredge 2800 Power Consumption
I am considering buying a Dell Poweredge 2800 Tower 2nd hand, while I have some experience with HP's competing server brand, the ProLiant Series, I am struggling to find out the server's realistic ...
2
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2answers
181 views
A/B Power Configuration for Server Cabinet
I'm upgrading our cabinet at our colocation for A/B power and wanted input on which of our options are good or bad.
First, a bit of an overview of our setup: We currently have a single circuit feed ...
3
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2answers
231 views
Power reading 2 amps with 13 servers?
We have a rack in a data center and we became suspicious of running out of power.
But our power bar says 2 amps! It has a live indicator, so it's not just one reading. Do you think there's something ...
1
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1answer
114 views
IBM server shutdown and restart
How can I set up a server so that when there is a power cut it is safely shut down, and when power returns it switches back on automatically?
I am specifically using an IBM AIX Server 6.
0
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2answers
264 views
Redundant power supply
I have been hit by my inexperience with power supplies... I bought a Ablecom (SuperMicro) PWS-801-1R redundant power supply. But this is in fact a module, that is not redundant in itself, and must be ...
0
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1answer
223 views
Are the SATA power connectors on motherboards compatible with both 2.5 & 3.5 drives?
Are the SATA power connectors on motherboards compatible with both 2.5 & 3.5 drives?
I want to switch my desktops internal 3.5 in drives to 2.5 in drives. I know that the signal cables are the ...
0
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1answer
33 views
Supply power to more than 4 SCSI devices? [closed]
I was wondering, essentially I wanted to pool 4-10 SCSI drives in to a single computer, but of course only have a limited amount of 12v power cables to go in to them. What would be the proper way to ...
3
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1answer
630 views
Software to measure power draw of HP Server
I'm after some software to measure the power draw of a HP Server, namely a DL360 series. I know Nagios is used for logging and monitering but I'm not sure if it logs power usage as well. I've also ...
0
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3answers
328 views
Send notification after powerloss resume?
Question:
I've set the BIOS of my server to automagically resume the last state (running/switched off) after a powerloss.
Now, how can I send myself an E-Mail when the system has resumed after a ...
1
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1answer
164 views
In equipment with dual PSUs, how is power draw balanced between them?
In equipment which has dual power supplies - e.g. a server - how is power draw balanced between them?
Will they be "active/active", with load evenly spread between both PSUs? Or will they be ...
0
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2answers
230 views
Netgear Modem Power Supplies, do AMPS matter?
i recently purchased a Netgear DGND3300 modem from USA for Australia.
Unfortunately it didn't come with a power adapter so i bought one locally, however the modem is recommended to have 12Volts and ...
0
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5answers
628 views
warning signs of a power supply going bad
We recently have a computer with 3 out of 5 HD going bad (excessive bad sectors) within 1 week. This got me to start thinking that maybe it's the power supply. What are some warning signs / tricks ...
0
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1answer
130 views
Will a 6+2-pin PCI-E plug work in place of an 8-pin EPS12V plug?
The motherboard I'm looking to get has a 24pin and 2x 8pin connectors on it. The power supply has a 24pin, 8pin, 4pin, 6pin and a 6+2pin connector. Will this work correctly or should I look for a ...
0
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3answers
668 views
Redundant APC UPS units, single server set up
We have a very relatively simple set up, looking for a very simple (reliable) solution:
Setup:
One Dell box with redundant power supplies running Windows 2003, plugged into two separate APC SmartUPS ...
1
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1answer
272 views
Raid 5 and Power Supply damage?
Because I build a RAID 5 atm, I wanted to ask, what would happen if the server with a raid 5 in it (like 4-5 hdds) would have a power supply damage? Can I just switch the power supply and my data is ...
0
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3answers
46 views
Can I replace a broken PSU with one of a smaller size?
I have an OEM power supply unit that is cooked. I'm browsing online to find a replacement and am happy to see that they don't cost too much -- the only thing is they all seem to have varying sizes.
...
1
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2answers
89 views
Recommendation for a redundant 60V DC Powersupply
We have some Telco-Equipment in our data space center which we had been given by our Telco. What they didn't provide is a redundant power supply and therefore we are struggling with outages of this ...
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6answers
1k views
Server power supply failures?
I have 6 servers both with 2 power supplies attached to an UPS. I want to add 4 more servers but the UPS is full and due to budget restriction I couldn't buy a new one for months. The 6 + 4 new ...
4
votes
1answer
239 views
Plug single PSU into two different power sources
We have a rather uncommon situation:
We have a server in a computer center. Its got not enough spare space to put in a redundant PSU. Nevertheless, we want to attach the single PSU to both existing ...
1
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2answers
301 views
Grounded outlet on external hard drive
Is there any value in getting an external hard drive with a grounded power supply? Would grounding the drive protect it from a static jolt from my hand when I pick it up? I've only really ever used ...
1
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3answers
949 views
Disable failed power supply warning LED on front of Power Edge 1850
I have a Dell PE 1850 that has recently been re-purposed as a non-essential TFTP server. It is currently running Centos 5.4 with no GUI. It has redundant PSUs, however I only need one connected ...
3
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4answers
2k views
How do I monitor redundant power supplies on a Dell server?
I'm purchasing a Dell R610 with redundant power supplies. What is the best way to be alerted in the event that one of the power supplies fails? I'll be running Windows Server 2008 R2. Since this ...
0
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4answers
769 views
Restarting redundant power supplies to Dell servers
When one of the two power supplies to a server is lost does it need to be manually 'reset' or will it automatically start working when power is restored. I can find no documentation about this so I ...
0
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2answers
181 views
Hot Swappable Power Supply Making Weird Sound
No idea why the server is making this sound and as you can tell, it's very annoying.
Taking out the bad section of the hot swappable power supply does not stop the sound.
Anyone have an idea why it's ...
0
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3answers
527 views
Power Supply Failure Corrupted a RAID?
All of a sudden, the power supply of a server started to smell real bad. One of the hot swappable power supply units died. We replaced it, booted up Windows Server 2003 to find out that 2 out of 4 ...
