Ad-Hoc Liquid Permeation Check & GPU Diagnostics

By Published December 27, 2017 at 11:17 pm
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This content piece is video-centric, but we have a full-length feature article coming tomorrow -- and it's focused on shunt shorting, something we have spent the past few days playing around with. For today's, however, we point you toward our render rig's GPU diagnostics, where we pull a Maxwell Titan from the machine, try to determine why it's overheating, and show some CLC / AIO permeation testing in the process. Rather than weigh the loops, which makes no sense (given the different manufacturing tolerances for the radiators and pumps), we emptied two loops -- one new and one old -- to see if the older unit's liquid had permeated the tubes. If it had, then we'd measure less liquid in the older loop, showing that a year of heavy wear had caused the permeation. You can find out what happened in the video below.

The short of it is that, between the two loops, we saw no meaningful permeation -- we also noted that the pump impellers were still spinning, and that the thermal paste seemed fine. Our next steps will be to remount the CLC and test again.

 

We can refill our two loops somewhat easily, and will even do so with better coolant than before. The next step is to re-secure the cooler and see if that solves the issue, as the vibration from operation could have rattled it loose.

Host: Steve Burke
Video: Andrew Coleman

Steve Burke

Steve started GamersNexus back when it was just a cool name, and now it's grown into an expansive website with an overwhelming amount of features. He recalls his first difficult decision with GN's direction: "I didn't know whether or not I wanted 'Gamers' to have a possessive apostrophe -- I mean, grammatically it should, but I didn't like it in the name. It was ugly. I also had people who were typing apostrophes into the address bar - sigh. It made sense to just leave it as 'Gamers.'"

First world problems, Steve. First world problems.

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