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Title: New rig with old hardware? Post by: pccs on April 22, 2013, 06:34:14 PM Just a couple of questions before I start putting a rig together.
Building a rig from some old hardware, do you see any problems with this set-up? I'd like to be able to run 3 cards(hopefully 7970s) in the rig. MB: Asus Crosshair - 2x16 PCIe and 1x4 PCIe - Should be able to run 3 cards?? I'll have to run at least one card on a riser, can't get to the x4 PCIe slot. Processor: AMD 6400+ AM2 - 2.2Ghz Ram: 2GB Power supply 1000W or 1250W? Do I need dummy plugs for each card running Xubuntu 12.04? Run on USB Drive or should I get a hard drive? Or should I just use a new motherboard that can accept 4 cards ... do you think building a rig that can run only 3 cards is a waste of money? Edit: I'm planning on using this for Litecoin as well as bitcoin. I've read that Litecoin uses more ram but I'm currently running one card mining Litecoin and as far as I can tell there is no ram usage to speak of. Maybe I have something configured wrong? Title: Re: New rig with old hardware? Post by: pajak666 on April 23, 2013, 01:20:59 AM you don;t need dummy plugs, even on windows with drivers new than 11.8 I think.
1000W PSU is for sure enough for 3 cards. I run 5970 and 5850 with 600W PSU. Ram should be enough for older card types 5XXX 6XXX but I am not quite sure about 7XXX series. I run those two on 2gb (win7 32) Running OS from usb reduces power usage, when compared to HDD. you probably will have to shorten pins on your riser https://bitcointalk.org/index.php?topic=36061.0 (https://bitcointalk.org/index.php?topic=36061.0) this might be helpfull also https://bitcointalk.org/index.php?topic=117221.msg1256502#msg1256502 (https://bitcointalk.org/index.php?topic=117221.msg1256502#msg1256502) |