Friday, August 17, 2012


Capacitors and Leaks

Back in late March, my watercooled system developed an odd problem: it would not post unless I warmed it up to about 75F.  I run the thing for months on end without powering off, so this wasn't a major problem - just odd.

I finally got around to disassembling the system and spotted the problem:

Not so good.  The VRM waterblock retention mechanism damaged two of the CPU MOSFET surface mount capacitors.

I replaced the motherboard and reassembled the machine, but it hard locked while I was adjusting BIOS settings.  Upon disassembly, I found leaked coolant.  Fortunately, I am using distilled water, iodine, and inert dye, so nothing was damaged.

I assembled the loop separately:
Running it for a few minutes revealed the source of the leak:

The end of this tube has been cinched one too many times.  Easily fixed.


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