Repurposing server PSU for your charging needs

repurposing-server-psu

That grey box at the top of the photo is a modular power supply unit for a rack-mounted server system. [Sebastian] decided to repurpose it as a charging source for his RC batteries. He chose this HP DPS-600PB because of its power rating, efficiency, and you can get them at a reasonable price. This is an active power factor corrected (APFC) PSU, which he says draws 40% less current than the … [Read more...]

Pedal-powered 32-core ARM Linux server

redhatguy (Custom)

Sure, it's probably a gimmick to [Jon Masters], but we absolutely love the pedal-powered server he built using a group of ARM chips. [Jon] is an engineer at Red Hat and put together  the project in order to show off the potential of the low-power ARM offerings. The platform is a quad-core Calxeda EnergyCore ARM SoC. Each chip draws only 5 Watts at full load, with eight chips weighing in at … [Read more...]

Automating the shutdown of APC UPS devices

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[Ishan Karve] works in some bizarro world where the building management demands that all servers and Uninterruptible Power Supplies be shut down at the end of each evening. While inconceivable to most systems admins, he has no recourse but to comply. This means that his employees need to turn things off before they leave for the day, and since they often work up to 15 hours a day, waiting for … [Read more...]

Hacking old server hardware for new home use

pe2800sata-09

[Arnuschky] was looking for a network storage solution that included redundancy. He could have gone with a new NAS box, but didn't want to shell out full price. Instead, he picked up a Dell PowerEdge 2800 and hacked it for SATA drives and quiet operation. It's not surprising that this hardware can be had second-hand at a low price. The backplane for it requires SCSI drives, and it's cheaper to … [Read more...]

Rebuilding a Mac SE as a server again

SE

Around this time last year, [Sprite_TM] took a 1980's-era Macintosh SE and rebuilt it as a home file server. He used a Seagate Dockstar as the new motherboard, but over the past year he's been annoyed with the fact that the Dockstar doesn't have real SATA ports. Using USB to SATA converters on a server is a slow way of doing things, so [Sprite_TM] rebuilt his SE using an HP thin client. To do … [Read more...]

Using your existing hardware to automate scanning and filing

automatic-document-scanning-and-filing

This one must have been fun to come up with because it's got it all. There's hardware, firmware, networking, and server scripts all working together to create a filing, scanning document center for your business. The best part is that [Janis Jakaitis] was tasked to do this as part of his job (we're sure there's a bunch of IT guys shaking their heads at this statement, but it sounds like fun to … [Read more...]

Hackaday Links: August 21, 2011

links-ps2-r2d2

Arduino + PS2 controller + R2D2 Here's an unbelievably real-looking R2D2 replica driven by a PS2 controller with an Arduino inside that plays sounds from the movies. Too bad we couldn't find any more details about it. [Thanks Bill] Server build time-lapse [Justin] and his colleagues spent five days upgrading their server by building a 29-unit cluster. Lucky for us they set up a … [Read more...]