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Power Usage and Thermal Images of the 1-chip Gridseed DualMiner USB ASICs
14 Mar2014
You can read our first impressions from the DualMiner USB Scrypt ASIC here and now we took some time to take some thermal images of the miner to check the temperature adn what actually gets hot, so you can consider some extra cooling as well as to measure the actual power usage of these small USB-powered devices based on a single Gridchip GC355 processors for mining BTC/LTC. It seems that the DualMiner’s aluminum heatsink on one of the sides of the device is working quite well, the temperature it shows is quite even and goes to just aa bit short of 50 degrees Celsius. That is with the miner running for Scrypt only mining mode at 850 MHz with 70 KHS hashrate, we are not very mich interested in the combined mining mode where the device also mines for SHA-256 cryptos, note though that if you use the miner in dual mining mode it will get hotter.
The other side fo the device’s PCB is with the chips and the two things that get hotter as expected are the GC3355 processor as well as the controller chip, so you might want to add some small cooling radiators on them in order to get better cooling. Alternatively adding a small fan like a USB one to create a good airflow or combining both things will make sure that the miner will run for longer period of time at its maximum without giving you trouble. Again this thermal images shows the miner running in Scrypt only mining mode with temperature of the chips going as high as close to 53 degrees Celsius. If you run in Dual Mode however the extra 1W of power consumption that is expected from the BTC side might increase the operating temperatures with another 10-12 degrees on top of what we are getting with Scrypt only mode.
What about the power usage? Since these devices are designed to be powered by a USB port their maximum power usage should be no more than 2.5W (0.5A at 5V) and that can be reached in Dual Mining mode. The idle power usage of the device when it is just plugged in and running in Scrypt only mode is a bit high at 0.875W, and it only increases to 1.485W when you start the miner. So getting about 70 KHS of Scrypt mining hashrate for just about 1.5W of power consumption is a great result for the hashrate you are going to get, what is not so attractive is the price that these devices are still being sold for. Nevertheless we are very satisfied from how the single chip DualMiner SUB ASIC devices are made and work, so next in line for similar testing are the 5-chip Gridseed BTC/LTC ASIC miners.
- Publihsed in: Mining Hardware|Tests and Reviews
- Related tags: bitcoin asic, BTC ASIC, Dualminer ASIC, DualMiner first impressions, Dualminer power usage, DualMiner review, DualMiner test, Dualminer thermal images, DualMiner USB, DualMiner USB ASIC, DualMiner USB Scrypt ASIC, GC3355, Gridchip, Gridchip GC3355, Gridchip USB ASIC, Gridseed, Gridseed ASIC, Gridseed GC3355, gridseed usb asic, Litecoin ASIC, LTC and BTC ASIC, LTC ASIC, power usage, Scrypt ASIC, Scrypt USB ASIC, SHA-256 and Scrypt ASIC, SHA-256 and Scrypt USB ASIC, SHA-256 ASIC, thermal images, USB ASIC
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1 Response to Power Usage and Thermal Images of the 1-chip Gridseed DualMiner USB ASICs
TC
March 16th, 2014 at 00:51
what are you using for measuring usb power draw?