How To... Cram a 24-Core Linux Cluster in $30 IKEA Drawers

Re:How To... Cram a 24-Core Linux Cluster in $30 IKEA Drawers by kiujygtyujik on Monday September 06, 2010 @07:16PM (#1667599)

You may also wish to connect each drawer to the AC power ground on it's PSU

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Re:How To... Cram a 24-Core Linux Cluster in $30 IKEA Drawers by ars on Tuesday September 07, 2010 @01:36AM (#1668177)

Then you get grounding loops - not a good idea.

Connect all the drawers to a single ground, using only one direction (star, not ring).

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Re:How To... Cram a 24-Core Linux Cluster in $30 IKEA Drawers by oiuytgfrgh on Tuesday September 07, 2010 @02:04PM (#1669558)

Ground loops probably aren't a big problem for a SMPSU - if you are putting power into a metal box you need to have a ground to the metal box.

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Re:How To... Cram a 24-Core Linux Cluster in $30 IKEA Drawers by ars on Tuesday September 07, 2010 @03:49PM (#1669894)

You do need ground, but do it without loops. Grounding loops are a violation of the electrical code (and can be dangerous in certain fault conditions).

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