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New Sunday, new roundup.

The biggest news this week is that Academic Computer Club (ACC) donated some of their old servers for the recluster project. This is around 20 machines and a few disk servers in total. Pictures:

[caption id="attachment_718" align="alignnone" width="300"] 1U rack servers donated by ACC and a few random motherboards donated by random people[/caption]

[caption id="attachment_721" align="alignnone" width="225"] Current state of the cluster rack, with jury-rigged water cooling and battery power. Very temporary.[/caption]

The other major piece of news is that one of local cover band Up2Eleven's loudspeakers were broken and we offered to help debug and fix it (site down at the moment).

The process itself wasn't too complicated. After some testing with music and a signal generator we determined that the problem was the middle driver's diaphragm assembly. After ordering and installing a replacement assembly the speaker worked well again!

[caption id="attachment_726" align="alignnone" width="300"] Speaker, mixer and amplifier[/caption]

[caption id="attachment_725" align="alignnone" width="300"] Replacement assembly (left) and broken driver (right). Repairing simply involved moving the magnet to the new assembly.[/caption]

[caption id="attachment_727" align="alignnone" width="300"] Action shot. "Work damn you!"[/caption]

That's all for this week. Tune in next Sunday for the next instalment!