Re: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs
I got a new toy.
Rack of SP30s, viewed from behind:
Looking inside an SP30. Top view, exhaust fans on the left. This shows some deficiencies of the camera. It's miscalibrated (reported temps are about 60°C above actual temps -- it appears this was fixed with a new software version), and it does a poor job with the aluminum heatsinks due to their low emissivity/high albedo. The heatsinks are actually much hotter than this image shows. Moving the camera angle caused the heatsinks to appear to change temperature, suggesting that much of what we're seeing on the heatsinks is reflected IR from surrounding objects, including the PCB and the walls/ceiling of the room.
225 amp 3-phase cable bundles in our overhead cable tray, viewed from beneath. Notice the bundles on the top of the image are warm (about 30°C in 11°C ambient) but the ones on the bottom are cool. That's because we're barely running any current through the bottom bundles, but the top bundles are running at full capacity.
Rack of SP30s, viewed from behind:
Looking inside an SP30. Top view, exhaust fans on the left. This shows some deficiencies of the camera. It's miscalibrated (reported temps are about 60°C above actual temps -- it appears this was fixed with a new software version), and it does a poor job with the aluminum heatsinks due to their low emissivity/high albedo. The heatsinks are actually much hotter than this image shows. Moving the camera angle caused the heatsinks to appear to change temperature, suggesting that much of what we're seeing on the heatsinks is reflected IR from surrounding objects, including the PCB and the walls/ceiling of the room.
225 amp 3-phase cable bundles in our overhead cable tray, viewed from beneath. Notice the bundles on the top of the image are warm (about 30°C in 11°C ambient) but the ones on the bottom are cool. That's because we're barely running any current through the bottom bundles, but the top bundles are running at full capacity.