Do this until you reach your desired hash rate. Once a few hours pass, all is good and nothing is overheated, go ahead and increase it another 50 MHz. Start by increasing the frequency by 50 at a time, let it run for a few hours and see temps and stability.
#Cgminer setup linux code
Notice in the code " -gekko-newpac-freq 400", for this instance, I have overclocked the miner 4X it's stock speed and achieved 91.2 GH/s of hashing power using the calculation 0.228 * 400 = 91.2 GH/s. Here is an example of the code I use for my setup -Ĭgminer.exe -o stratum+tcp://:3333 -gekko-newpac-freq 400 -suggest-diff 128 -u 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr -p x 2>%LOGFILE% The expected performance of the NewPac is about 0.228 * MHz = GH.Īt the default frequency of 100MHz, the NewPac runs at 22.8 GH.īy increasing the frequency above 100MHz, we are overcloking the NewPac.
#Cgminer setup linux software
If you know a bit of coding, you can use this guide to other mining software and other operating systems like Linux and Raspberry Pi. SETUP - I will be focusing on cgminer setup in this guide. It has a massive 120W 12V 10A power supply included with it. Each port supports up to 12W even when they are all overclocked at the same time. This is why I recommend the Bitcoin Merch® - 10 Port USB Hub for overclocking. But once you aggressively overclock your miners, you will can reach up to 10W - 15W. POWER - At stock speeds, the NewPac takes only 2.5W, which most USB ports can handle. The lower the better, I aim for 80 ° C operation temperature or lower during overclocking. You don't want to pass above this temperature, so watch it carefully. When you overclock it, it might reach up to 90 ☌. The chips generally run at around 70 ☌ when not overclocked. You can view the specifications of those chips from BM1387 Bitmain Website. TEMPATURE - The NewPac has two BM1387 chips. In minutes the NewPac will overheat in a deadly loop and die forever. Whichever you choose, make sure you choose one. It also takes allot of space and it's for sure an overkill. It's loud - and it takes allot more power than the USB fans. House fan - You CAN use your house fan to cool down your miners but this solution has the most downfalls. It's also not as effective as the first solution.ģ. The downside is that if you are using a usb hub, it will take one of your USB slot in order to operate it. The benefit is that they are cheaper, and will work with variety of USB miners. USB Fan ARCTIC Breeze or USB Powered Fan for USB Miners - Those fans work generally for any cooling application where the cooling need is small like the NewPac. That's a 300% increase in mining performance than stock.Ģ. It works so well that I have reached the higest amount of hashing power using this fan (110 GH/s and up). Bitcoin Merch® GekkoScience NEWPAC USB Fan Upgrade - This little device was specifically designed (by me) to actively cool the miner efficiently.
The NewPac does NOT come with any fan or active cooling, it only comes with a small heatsink.ĪCTIVE COOLING - To provide cooling you can use any of the following -ġ.
#Cgminer setup linux how to
Although it's safest, most efficient way to mine, you might want to overclock it to reach much higher clock speeds and get more from your purchase.īefore we start overcloking, I recommend reading How to setup the GekkoScience NEWPAC USB Miner? first.īefore you even thinking about overcloking, you must provide active cooling for your miners. Why would you want to overclock the NewPac? well, if you don't you get only about 23 GH/s of mining power. O verclocking devices generally voids warranty in most manufactures. Remember, overclocking the NewPac will void warranty.
In this guide we will focus on how to safely overclock the NewPac USB Miner. *Start the video at 9:05 to see the part where I overclock the miners.
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