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-1
votes
0answers
48 views

1500 Watt power supply on a 500W UPS [closed]

My PC has a power supply of 1500W. It uses around 1200 at the moment and Id like to buy a UPS. I dont seem to find a UPS higher than 1000W. I came up with this UPS: APC Back-UPS Pro 900 which claims ...
0
votes
0answers
28 views

Power suplpy does not silent after few seconds [migrated]

I have a desktop computer that I intend to use as a Linux server. I assembled all components and the computer properly boots in Ubuntu, and works fine, however, the power supply fan does not turn down ...
2
votes
3answers
49 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
votes
3answers
58 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 ...
12
votes
3answers
366 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 ...
1
vote
2answers
114 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
votes
5answers
138 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
votes
2answers
82 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
votes
1answer
39 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 ...
1
vote
5answers
99 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
votes
1answer
77 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
votes
2answers
81 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 ...
2
votes
2answers
147 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
vote
1answer
60 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
votes
2answers
174 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
votes
1answer
89 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
votes
1answer
28 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
votes
1answer
271 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
votes
3answers
212 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
vote
1answer
107 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
votes
2answers
171 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
votes
5answers
329 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
votes
1answer
114 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
votes
3answers
498 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
vote
1answer
216 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
votes
3answers
32 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
vote
2answers
77 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 ...
5
votes
5answers
792 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 ...
3
votes
1answer
210 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
vote
2answers
248 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
vote
3answers
523 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
votes
4answers
903 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
votes
4answers
498 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
votes
2answers
167 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
votes
3answers
403 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 ...
1
vote
2answers
240 views

PSU: 20 / 24 pin +4 pin

Looks like I need tro replace the Power Supply on one of the machines, but I am confused with the plugs. The MB (ASROCK 939N68PV-GLAN) has a 24 pin connector and a separate 4 pin (2x2) header. The ...
2
votes
3answers
195 views

Power supply reliability

Is a larger-capacity power supply likely to live longer than a lower-capacity supply, even if they both have plenty of capacity for the system they're on? For example, say I have a system where the ...
2
votes
5answers
400 views

Need hardware to remotely reset hosted computers

We host computers and servers for clients. When their machines crash we need to reboot these machines. However this is not possible when we are out of the office. I know on servers such as HP you ...
0
votes
2answers
769 views

GE NetPRO UPS monitoring software available for Windows Server 2008?

We've replaced our old file server with a new one running Windows Server 2008. The UPS we used for the old server is a GE NetPro 1500VA unit. It came with JUMP DataShield monitoring software, which ...
1
vote
1answer
81 views

Plugstrips with protected switches

We recently had a full power outage and had to shut down basically all devices in the server room. Being a smaller org, we still have some very small business practices im working to change over ...
0
votes
8answers
180 views

Windows PC randomly shutting down

I have a client PC at work that appears to be shutting down randomly as of late (very annoying!). I have investigated the guts of the case, cleaned out a lot of dust, and the problem persists. The PC ...
3
votes
8answers
357 views

Anti surge protection

Great site - my first posting! I support a number of small business for all things computing. I protect the servers with APC Smart-UPS 1000. The do just what they were bought to do. However, I dont ...
0
votes
5answers
202 views

The right sequence connecting a power supply to a device

Since I heard two versions and also read two versions in manuals to various devices, I would now like to hear the community opinion. How should we connect a power supply to an electronic device? ...
2
votes
4answers
2k views

What is the button on power supply of the Dell Optiplex 760 workstation for?

What is the button on power supply of the Dell Optiplex 760 workstation for? There is a small button near LED power indicatior - seems to do nothing when pressed.
4
votes
7answers
688 views

Is there a solution against short power outages except UPS?

I encounter very short power outages quite often. Typically they last for just couple of seconds - perhaps the power grid maintenance staff just flips the switch to "Off" and then immediately to "On". ...
5
votes
10answers
1k views

Do I need some kind of power conditioner or UPS?

In one of my boxen, both my power supply and network card died while in overnight hibernation - why? And: What must I do to appease the electricity Gods so that I don't lose more hardware? In ...
1
vote
3answers
178 views

Does a fan lattice made of round wire really make less noise than one made by cutting a metal sheet through?

Electronic equipment fans are often covered with a lattice guard, especially the fan in the power supply unit of a computer case. Two variants are typical: either there'a a huge round hole in the ...
1
vote
2answers
240 views

What could cause a NIC to produce audible noise?

I have a PC that produces audible noise/screeching correlated to network activity. The noise is high-pitched and somewhat difficult to locate, however it seems to be coming from the power supply. It's ...
2
votes
2answers
506 views

Good power supply for a Asus Z8NR-D12 motherboard? (Or: I can has dual ESP12V?)

My company is building a server and we've already purchased an Asus Z8NR-D12 motherboard which we really like, but when we went to assemble our server, we found that the chassis we had bought came ...
18
votes
6answers
7k views

Does a 500 watt power supply always use 500 watts of electricity?

Does a 500 watt power supply always pull 500 watts? Or does it depend on the load being placed on the computer? It's a n00b hardware question. I'm trying to figure out how much it costs to run my ...