Page 1:Mining Ethereum: GPU Power Consumption
Page 2:Six Useful Tips For Configuring Mining Rigs
Page 3:Test Results: Power Consumption For Mining & Gaming
Page 4:Test Results: Ethereum Hash Rate
Page 5:Test Results: Performance Per Watt And Dollar
Page 6:Test Results: Fan Speeds & Temperatures (Mining & Gaming) & Conclusion
Six Useful Tips For Configuring Mining Rigs
Before presenting our power consumption and performance charts, we want to offer a few tips on mining-rig configuration that come from individuals we've talked to who own large-scale mining operations.
1. Buy A Reliable Power Supply
For starters, the power supply is a mining rig's most important component, so put some effort into picking the right one. A poor-performing PSU with low reliability will put stress on other components, endangering your expensive graphics cards. How do you spot the right power supply for mining? Easy! Ready our PSU reviews and check out our Best Power Supply Units for Cryptocurrency Mining guide, frequently updated.
2. Clean, Steady AC Voltage
You might have a good PSU, but if it's connected to an unstable mains grid, it won't perform well. Frequent power losses, brown-outs, and other quality issues put a heavy burden on the PSU, affecting its voltage rails and the other components inside of your PC. If you know your power is spotty, use line conditioners to provide steady AC voltage to the PSUs driving your mining rigs.
3. Don't Fully Load The PSU
Avoid fully loading your PSUs. Even a top-quality, performance-oriented power supply won't last long if you push it at 100% load for prolonged periods of time under high operating temperatures. Also, efficiency is much lower under full load than typical levels (50%, say). Besides higher electricity bills, that means more thermal build-up inside of your PSU. Imagine 100 or 200 PCs in the same room heating up more than they should. Instead of a mining farm, you'd end up with a sauna.
To make matters worse, increased ripple encountered under full load causes the DC-DC converters of graphics cards, motherboards, and other PC components to run hotter.
4. Find/Use The Optimal Settings
Try to keep the operating temperature of your graphics cards as low as possible by using optimized settings. Core clock rates don't matter much, but RAM performance does. So, drop the GPU's frequency as far as it'll go, and dial back power as you lock in the highest stable RAM overclock.
5. Use Graphics Cards From The Same Batch
Given the astronomically high demand for graphics cards, check to see if the ones in your mining rigs come from the same batch and have identical memory chips. If they don't, you may not be able to hit similar clock rates and timings with them, sacrificing performance or causing stability issues.
6. Heat Is A Killer!
Most important, try to keep your mining rigs running as cool as possible. Heat is immensely bad for the longevity of electronics, and you don't want to combine high temperatures, intensive workloads, and 24/7 operation. Besides causing looser load regulation and increased ripple, hot ambient conditions affect your PSU's efficiency, driving temperatures up even more. So, find a way to effectively ventilate the room where your mining equipment is installed. Air conditioning works best (though it also adds to your costs, of course).
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