do quiet redundant PSUs exist?

[ThePiston]

I'm building a server for my small business. Uptime is pretty critical so I'd like to get my first redundant power supply.

here's the problem: due to the fact that our server room has no ventilation, I can't keep the server in there - it has to stay in my office.

all of the redundant PSUs I see on Newegg have small high-speed fans and in the reviews people complain about how loud they are.

Should I just buy a quiet single PSU and another spare instead?

 

[colonelciller]

is it possible to use 2 very quiet "normal" PSUs in a case and have one come on if the other fails... i'm guessing you'd still end up with a shut-off server though.

 

[colonelciller]

check out these sexy-quiet PSUs:
http://www.bequiet.com/en/powersupply/299

http://www.techpowerup.com/reviews/beQuiet/DarkPowerProP10_1000W/9.html
"When you combine Seasonic's experience with Be Quiet's perfectionism, the outcome is a PSU like the Dark Power Pro 1000 W which excels in almost every area. Throughout all tests I conducted, the PSU performed great, registering tight voltage regulation, high efficiency, extra-low ripple on all rails, and, at normal ambient, low output-noise. The many connectors that this unit is equipped with makes sure that it will be able to power every high-end system you throw at it. The OCK key allows you to configure it as multi-rail or single +12V rail depending on your likes/needs."

why not just put one in the case, have a 2nd spare (these are modular) and then you have a quick change-out in the event of a failure. It would be surprising for one of these to fail though.

 

[Ayah]

With 80+ Titanium energy efficiency, you can swap/modify the fans since power loss will be low. However, you're still faced with the fact that you're cramming 2-3 power supplies in the space normally assigned to one.

If you just want to sacrifice space for cost/noise, you should be able to rig up a control circuit using TI's TPS2410 as in http://www.eetimes.com/design/power...undant-power-techniques-for-servers-explained

 

[ThePiston]

actually if my server goes down, it's inconvenient, but not really critical. Since this is a low-power server (45W CPU and all SSD) I'm going to use this low-watt PSU and just buy a spare: http://www.newegg.com/Product/Produc...82E16817371033

 

[paulcube]

Did some research on this and you can also get a power transfer switch, like they use in server environments. If one of the power supply dies, it switches to the other one - better than getting a redundant power supply to put inside a case since assembly . I can't imagine it making much noise. The form factor is mostly for server cabinet racks however.

Doing research as to how it would connect to the motherboard.

 

[paulcube]

Old thread but new product since last year: http://www.fsplifestyle.com/PROP164000925/

500W and 700W available for ATX cases.

Phanteks Primo w/ dual PSU accessory isn't technically a redundant power supply and you don't get the software either which gives out PSU status reports.

It isn't marketed as being quiet but for this PSU, the bulk of the silencing job is done by the case. Hopefully this product stays around for awhile. It looks the most appealing since I wanted this technical pain point solved.