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Title: Newbie needs advice on BFGMiner Post by: Sector7G on January 26, 2014, 02:59:33 AM Hi,
I'm just starting out with Bitcoin mining. I have been doing a lot of reading and watching YouTube up to this point. I have a few questions I hope the community can answer. I started out with a USB eruptor. It's an Ice Fury. It's advertised at 2 Gh/s, and could be overclocked at 2.6 Gh/s. I understand these probably won't be as profitable as something like the units from Butterfly Labs or similar. But I'm starting out small so I can learn the basics. If I like it, then I may invest in better hardware. I got everything up and running. But as I watch the screen for BFGMiner, I'm concerned by what I see. First, I've tried searching here and Google. But I'm not quite sure how to interpret what I see. As I look at the speed, I see the line that says: 1.73 / 1.59 / 0.95 Gh/s. So which one is my actual hash rate? Second, it looks like my error rate is out of control. It has actually dropped to 12% since I took the screenshot below. But that still sounds out of control. So how do I determine my actual hash rate? What part of the status window should I be watching? And how can I lower my error rate? I have a fan blowing on the USB stick. When I measure the temp with an infrared thermometer, it reads 77 F on the heat sink, and 85 F on the other side. So it is not overheating at all. http://i665.photobucket.com/albums/vv14/TI-6143/coin/BFGMinerHash10.jpg Title: Re: Newbie needs advice on BFGMiner Post by: nwoolls on January 26, 2014, 03:10:57 AM But I'm not quite sure how to interpret what I see. As I look at the speed, I see the line that says: 1.73 / 1.59 / 0.95 Gh/s. So which one is my actual hash rate? Second, it looks like my error rate is out of control. It has actually dropped to 12% since I took the screenshot below. But that still sounds out of control. So those three hash-rates (1.73, 1.59, and 0.95) are as follows:
So that third number takes the high HW% you are seeing into account. The HW % does sound very high. For Bitfury-based devices it should really be at or under 5%. I would contact the person you bought it from if the HW% doesn't go down over time. Title: Re: Newbie needs advice on BFGMiner Post by: Sector7G on January 27, 2014, 12:08:21 AM Thank you nwoolls!
I contacted the eBay seller. He was very helpful. We believe the problem is a poor quality USB hub. It is a powered hub, but he doesn't think it's providing enough juice. He offered to send me a hub that he has tested and knows will provide enough power. Title: Re: Newbie needs advice on BFGMiner Post by: nwoolls on January 27, 2014, 12:11:38 AM I contacted the eBay seller. He was very helpful. We believe the problem is a poor quality USB hub. It is a powered hub, but he doesn't think it's providing enough juice. He offered to send me a hub that he has tested and knows will provide enough power. Too true - hopefully that helps. Under-powered USB hubs can definitely cause issues. |
