The luck factor should level itself off over time but it may take a few days before it does. The stale shares are rewarded at only about 50-70% by most pools. Q008: Why is the effective hashrate shown by the pool lower than the one shown by PhoenixMiner?Ī: There are two reasons for this: stale shares and luck. This statistic is meaningless in the first few hours after the miner is started and will level off to the real value with time. This number should be close to the average hashrate of your rig (usually a 2-4% lower than it) depending you your current luck in finding shares. Q007: What is the meaning of “effective speed” shown by PhoenixMiner’s statistics?Ī: This is a measure of the actually found shares, which determines how the pool sees your miner hashrate. If you did, you have found a block (which is what the mining is all about). You can find the current difficulty for given coin on sites like and then check to see if you have exceeded it with your maximum share difficulty. Q006: What is the meaning of the “actual share difficulty” shown by PhoenixMiner when a share is found?Ī: It allows you to see how close you were to finding an actual block (a rare event these days for the most miners with reasonable-sized mining rigs). As pools only reports the shares as accepted or rejected, there is no way for the miner to determine the stale shares from the pool’s point of view. There is additional latency in the pool itself, and in the network connection, which makes a share stall even if it was technically found before the end of the block from the miner’s point of view. Q005: Why is the percentage of stale shares reported by PhoenixMiner smaller than the one shown by the pool?Ī: PhonixMiner can only detect the stale shares that were discovered after it has received a new job (i.e. If the share is submitted too long after the block has ended, the pool may even fully reject it. Ideally, the stale shares should be minimal as same pools do not give any reward for stale shares, and even these that do reward stall shares, give only partial reward for these shares. If our rigs finds a share just after the someone else has found a solution for the current block, our share is a stale share. On the other hand, to achieve high mining speed we must keep the GPUs busy so we can’t switch the current job too often. #Fminer troubleshooting how toQ003: Can I run PhoenixMiner simultaneously on the same rig with other miners?Ī: Yes, but see the answer to the previous question for how to avoid problems.Ī: The ethash coins usually have very small average block time (15 seconds in most instances). To fix this problem, use the -cdmport command-line option to change the CDM remote port form its default value. Q002: Can I run several instances of PhoenixMiner on the same rig?Ī: Yes, but make sure that each GPU is used by a single miner (use the -gpus, -amd, or -nvidia command-line options to limit the GPUs that given instance of PhoenixMiner actually uses).Īnother possible problem is that all instances will use the default CDM remote port 3333, which will prevent proper remote control for all but the first instance. In the first releases of PhoenixMiner we focused on the basic features and on the mining speed but we are now working on making our miner easier to use and even faster. FAQ Q001: Why another miner?Ī: We feel that the competition is good for the end user. We are actively working on bringing many new features in the future releases.
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