Cryptocurrency mining destabilized the graphics card market. Lovers of extracting Ethereum and other cryptocurrencies have bought all the graphics cards. First, all Radeon GPUs disappeared from the store shelves, and then the miners took all GeForce GPUs. The whole confusion ended so that manufacturers began planning to introduce graphics cards dedicated mining. You can easily recognize them by the lack of monitor connector. They are also characterized by increased yields for mining activities.
What equipment is most optimal for cryptocurrency mining? The cost-effectiveness of the investment consists of three factors: the price of the graphics card, its performance and the cost for consumed electricity. The whole thing is to extract as many units of the cryptocurrency as possible with the lowest cost, i.e. the electricity bill. According to the calculations that can be found on the Internet, purchase a graphics card should return in from 6 to 8 months.
Cybenetics has already outlined the requirements for power supplies that will be dedicated for cryptocurrency mines.
This certificate is called Mining Ready. It will be awarded to power supplies that can handle continuous work with full load in high temperature conditions. It will have to be equipped with good quality components. The requirements are:
- 750W or higher capacity.
- ETA-B and higher efficiency certification.
- Lower than 50mV ripple at +12 V under full load at increased operating temperatures (> 45° C).
- Quality fan with double ball-bearings.
- Two EPS connectors.
- At least four 6+2 pin PCIe connectors on dedicated cables. In case a cable hosts two PCIe connectors, it needs to have 16AWG gauges up to the first connector for the six out of the eight pins at least. For PSUs with over 1 kW capacity the number of minimum PCIe connectors is eight and for PSUs with over 1.4 kW capacity the minimum is ten.
- At least six 4-pin Molex connectors on more than two cables in 1 kW and stronger PSUs and eight 4-pin Molex connectors in three cables or more for 1.4 kW and higher wattage PSUs. Ideally the Molex connectors should have 15 cm distance between them.
- All peripheral cables should use 18AWG wires minimum.
- AC power cord with up to 14AWG wires and C19 coupler for 1.4 kW and above PSUs. For all the rest 16AWG is required. Ideally every PSU with 1kW or more capacity should use a 14AWG power cord along with a C19 coupler.
- The essential protection features (SCP, OPP) including Over Temperature Protection.
Over 18 ms hold-up time and an accurate power ok signal.
- Complete EMI filtering stage (minimum components: 4x Y caps, 2x X caps, two CM chokes, an MOV) along with inrush current protection (thermistor and bypass relay).
- Impeccable build quality including quality MOSFETs, high quality bulk and filtering capacitors (105° C and the majority of filtering caps on the secondary side much have higher than 4 000 hours lifetime). The use of polymer caps on the secondary side is preferred.
- One year minimum warranty for 24/7 operation under full load at 30° C – 35° C.