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Title: Raspberry Pi w/ 2 Block Erupters getting slow hashrate (~150 MH/s total) Post by: tlr on July 10, 2013, 08:14:18 PM I decided I should move my 2 ASICMiner Block Erupters off my power hungry desktop, where they were getting the advertised 330 MH/s (each), so I followed these instructions from Adafruit to get cgminer running on a RaspberryPi http://learn.adafruit.com/piminer-raspberry-pi-bitcoin-miner but my hashrate is now a horrible a ~150 MH/s
What's wrong? Does anyone else have a similar setup that's actually working properly? Maybe a bad USB hub? I'm thinking about trying one of the Anker 10 ports, but it seems overkill for 2 Block Erupters. Raspberry Pi too slow to keep up? Just needs some tweaking? Thanks. Title: Re: Raspberry Pi w/ 2 Block Erupters getting slow hashrate (~150 MH/s total) Post by: bea on July 10, 2013, 08:28:53 PM Are you using cgminer 3.1.1?
Where are you reading your hashrate from? LCD screen via api or straight from the pool? Title: Re: Raspberry Pi w/ 2 Block Erupters getting slow hashrate (~150 MH/s total) Post by: ct1aic on July 10, 2013, 08:29:33 PM I decided I should move my 2 ASICMiner Block Erupters off my power hungry desktop, where they were getting the advertised 330 MH/s (each), so I followed these instructions from Adafruit to get cgminer running on a RaspberryPi http://learn.adafruit.com/piminer-raspberry-pi-bitcoin-miner but my hashrate is now a horrible a ~150 MH/s I also think the problem is with the HUB and/or power supply of the HUB. There are reports of 10 USB Block Erupters controlled by a RPI, working with no problems. There are also reports of problems with USB 3.0 HUB's.What's wrong? Does anyone else have a similar setup that's actually working properly? Maybe a bad USB hub? I'm thinking about trying one of the Anker 10 ports, but it seems overkill for 2 Block Erupters. Raspberry Pi too slow to keep up? Just needs some tweaking? Thanks. I'm using a RPI 256 MBytes, with MinePeon, hashing @ 336 MH/s each, for 1 month, with no problems. I'm using a 7 ports HUB 2.0 bought @ China, but with a power supply with 5V/3Amp. The original power supply included with the HUB was only 1Amp. Link for my HUB: http://www.ebay.co.uk/itm/230976716952?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649 Title: Re: Raspberry Pi w/ 2 Block Erupters getting slow hashrate (~150 MH/s total) Post by: tlr on July 10, 2013, 08:50:04 PM I'm using cgminer 3.3.0. I tried compiling 3.1.1 but it wasn't working for some reason. I'll try again.
I'm using the same hub suggested in the PiMiner Adafruit tutorial (Manhattan something or other). I tried plugging it in my desktop and it ran just fine, but perhaps the desktop USB port is providing additional power? EDIT: I got 3.1.1 running, and it appears to be working correctly (660 MH/s total). Not sure what's wrong with 3.3.0. Title: Re: Raspberry Pi w/ 2 Block Erupters getting slow hashrate (~150 MH/s total) Post by: Aajo on July 10, 2013, 09:34:10 PM I'm using cgminer 3.3.0. I tried compiling 3.1.1 but it wasn't working for some reason. I'll try again. cgminer version is the problem https://bitcointalk.org/index.php?topic=223573.msg2453229#msg2453229 Title: Re: Raspberry Pi w/ 2 Block Erupters getting slow hashrate (~150 MH/s total) Post by: tlr on July 11, 2013, 02:33:22 AM I'm using cgminer 3.3.0. I tried compiling 3.1.1 but it wasn't working for some reason. I'll try again. cgminer version is the problem https://bitcointalk.org/index.php?topic=223573.msg2453229#msg2453229 Yup, 3.1.1 works fine. Thanks. |