Title: WTS Bitcoin Quad 6870 Mining Rig - $900 - OBO Post by: newmont on July 08, 2011, 12:40:57 AM Asking $900 OBO - will accept BTC/MtGox USD/Paypal at current exchange rate.
Please PM ALL offers! Selling my Quad 6870 GPU bitcoin mining rig. Put into production on May 23rd 2011 in air-conditioned/climate controlled datacenter. Runs like a Dream, no issues. Ships with Ubuntu 10.10 and poclbm.py -ready to mine out of the box Never Overclocked, though cards support several options. Rig at stock clockspeed does 1100-1200 M/hash on deepbit Cost $1500+ to build in parts alone Have done 1 deal on #bitcoin-otc Also have stellar ebay feeback: http://myworld.ebay.com/tomatosauce Specs are as follows. GPUs: 4x ATI Saphire Extreme 6870 1024 MB/1050 Mhz Mem clockspeed 900 Mhz Core clockspeed PCI Express 2.0 x16 MOTHERBOARD: MSI AM3 USB 3.0 + Sata 6GB PSU: Cooler Master Silent Pro M100 1000W PSU CPU: Quadcore AMD Phenom II X4 955 Black Edition 3.2 Ghz Memory: Patriot Memory 'Sector 5' G Series 4GB Case: COOLER MASTER HAF 932 Advanced RC-932-KKN5-GP Black Steel ATX Full Tower HD: IMATION SATA2 64GB SSD (pretty nice) Title: Re: WTS Bitcoin Mining Rig Post by: newmont on July 08, 2011, 12:50:12 AM Title: Re: WTS Bitcoin Quad 6870 Mining Rig - New Price! Post by: CydeWeys on July 08, 2011, 02:25:15 PM Rig at stock clockspeed does 1100-1200 M/hash on deepbit Um, the screenshot you're showing has the rig outputting less than 1000 MHash/s total. Yes, every so often it will get lucky and temporarily display a speed of 1100-1200 MHash/s on Deepbit. By the same token, every so often it will be unlucky, and will display a speed of 700-900 on Deepbit. You need to take the all-time average, not just the highs. PSU: Cooler Master Silent Pro M100 1000W PSU CPU: Quadcore AMD Phenom II X4 955 Black Edition 3.2 Ghz Memory: Patriot Memory 'Sector 5' G Series 4GB Case: COOLER MASTER HAF 932 Advanced RC-932-KKN5-GP Black Steel ATX Full Tower HD: IMATION SATA2 64GB SSD (pretty nice) Well there's your problem. All of these parts are unnecessary for a dedicated mining rig. You definitely didn't need that CPU, or that much memory, or a case, or the SSD, and you could've gone with a smaller PSU to boot (around 800-850W). A few weeks ago I put together a rig, NEW, for $950, composed of 4x5830s, that outputs 1240 MHash/s (that's average, not peak). So to charge more than that for a used rig that outputs fewer MHash/s, well ... I don't think you're going to find many potential buyers. Title: Re: WTS Bitcoin Quad 6870 Mining Rig - New Price! Post by: newmont on July 08, 2011, 02:41:26 PM I had the SSD and PSU already, albeit unused.
It does get an average of 1100 mhash - on deepbit. Title: Re: WTS Bitcoin Quad 6870 Mining Rig - $900 - OBO Post by: simplecoin on July 10, 2011, 08:46:52 PM yhpm
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