I’ve put my dix spark’s in a mini rack; they are stacked horizontally behind the display and have a huge fan overhead and a useless fan pair behind them that I’m going to remove or upgrade.
I need better cooling; I’m thinking I have good airflow and heatsinks thermal taped to 3 sides of the DGX stack would help.
For the top, a low profile heatsink due to space constraints
For the sides, big ones!
Thoughts?
Dont think its needed, taking off the case / external shell improves airflow enough to shave off 10-15c off max temps. Repasting with a better compound reduces temps even further. With my 2 sparks de-cased and 2 80mm fans pointed at the front my temps during long runs hover around 60-70c. Prior to this they would rapidly hit 96c+ and I would get random shutdowns and occasional power throttling and now I havent had either of those things happen once.
I’d wager having them behind the display is contributing to your problem. You’re restricting the flow to the intake fans in the Spark(s).
It’d probably help to move them to the bottom of the rack (hot air rises) and maybe add a front fan to push more air onto them.
Also, see this thread for more ideas and ongoing discussion for improving airflow and cooling in the different Spark units: Dual Spark Ducted Cooling Cage
Edit: The airflow in the Spark is from front to rear, so having fans in the rear of the rack will only help if they’re acting as an exhaust and pulling air away from the rear of Spark(s), and not as an intake.
