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1answer
61 views

5-pin 4-cable connector on SuperMicro server PSU?

I have a 4U SuperMicro SC847 Chassi that comes with redundant 1400W power supplies. All of the internal power cables (ATX, ATX12V, HDD and such) are connected to two circuitboards where the back of ...
8
votes
3answers
565 views

Power Cables Required to Switch from 120v to 240v for Dell Poweredge Servers

We have a cabinet of servers and other hardware (switches, firewalls, etc) that all are currently running on 120v. I've confirmed that the power supply for all of our devices support both 120v and ...
0
votes
1answer
191 views

Selection of chassis/ cabinet/ case and PSU when assembling a custom server [closed]

I am planning to assemble servers with primary objective of virtualization. Currently the first machine I wish to set up is tower server with following configuration: Processor Intel® Xeon® ...
0
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1answer
428 views

Sun X4100 power supply failure LED on, but PSU working

I have a Sun X4100 with dual power supplies. The "rear PSU" LED comes on after the system is powered on and has gone through the self-test. Both power supplies are working just fine -- I can take out ...
1
vote
1answer
191 views

HP DL380G5 with APC SC1500 UPS — transfer time failure

I have 2 of these things: APC SmartUPS SC1500 (220v). My Proliant G5 DL380 PSUs seem to really hate them. This is what happens when UPS switches to battery (PSU2 is plugged into the SC1500): iLo IML ...
4
votes
2answers
132 views

Does the additional load on UPS in case of grid failure amount to 100%?

The scenario is as follows: Servers are equipped with two PSU's each. One of these is connected to the UPS, the other one directly to the power grid (bypassing the UPS). I would assume that since the ...
7
votes
1answer
218 views

Is it safe to remove power from a linux computer in run level 0? [closed]

I am working on power supply to a Raspberry Pi where changing the state of one of the GPIO lines shuts off power immediately. Is it safe to do this in run level zero, or is there more shutting down to ...
1
vote
1answer
118 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 ...
1
vote
2answers
108 views

What are the advantages of getting an expensive server? [closed]

Server CPUs cost multiple times more than Desktop CPUs; so do Motherboards and PSUs. What are the advantages of getting a server system rather than a desktop system? Stability can be one, but what ...
1
vote
3answers
682 views

Why UPS operate deal with 110v/220v rather than integrate within PSU? [closed]

All the laptops I know about operate on ~19V, in consuming up to 150W. All the non-gaming desktops I know about take 110v/220v, convert into 12V & 5.5V, consuming up 400W. To provide desktops ...
1
vote
3answers
110 views

USB Legacy support burning PSU, is it possible? [closed]

So one day, the PSU in the machine I was working with decided to blow up. Yes, I heard a pop, and a strong burnt smell. So what happened? What caused it? How can I prevent it? The situation: The ...
3
votes
3answers
2k views

R610 redundant power supply

We are installing Dell Poweredge R610 servers with redundant powersupply's: High Output Power Supply Redundant, 717W So each server has two power supplies. I'm trying to figure out whether ...
1
vote
2answers
226 views

Placing UPS in front of STS; Connecting Dual PSU to same PDU

The site has 2 x 16A @ 230V, each server/SAN has dual PSU set up. Options: 1) [2 x 16A] ---> [1 x STS or ATS]----> [1 xUPS]---->[2 x PDU]----->[DUAL PSU] As can be seen the server is actually ...
2
votes
2answers
749 views

Does a higher-wattage PSU automatically draw more power?

Does a higher-wattage PSU automatically draw more power in comparison to a lower-wattage PSU even if the components fed by the PSU remain the same? The reason I'm asking is that I'm thinking of ...
1
vote
4answers
483 views

Importance of Redundant Power Supply

How important are redundant power supplies in servers, not measured by how critical server uptime is, but by likelihood of failure? In other words, are server PSU's error prone and/or likely to fail ...
5
votes
2answers
357 views

Will a 300W psu drain more power than a 100W if the system only uses ~80W?

I have a NFS server that is a old mini-itx motherboard with two 2.5" drives and a no optical drive. Atm. this is powered by a external 100W psu, but I estimate it only need/uses between 60-80W. This ...
0
votes
3answers
790 views

Dell 8MM01 server won't start - flashing blue light

We have a DELL 8MM01 server that won't start-up. When we try to power it up an amber light slowly flashes at the back. When we push the button next to this light it changes to a flashing blue. The ...
0
votes
2answers
753 views

How does the Belkin OmniView Remote IP Manager (IP KVM) do Hard Reboots?

I am looking to get an IP KVM for a single server. The features tab on http://catalog.belkin.com/IWCatProductPage.process?Product_Id=291011 shows that the OmniView Remote IP Manager can do hard ...