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Title: Running two different cards Post by: Beremat on February 28, 2011, 01:30:04 AM Okay, so I've recently discovered the joys of mining. I've invested $200 into an HD 5870. It'll be here tomorrow, but right now I still have my HD4850. My question is, would it be possible to stick the 5870 in there as the main GPU and then leave the 4850 in there to mine with as well? That way I'd use poclbm on both the 5870 and 4850. It'd be a shame for such a good card to go to waste in my closet.
Of course, I wouldn't use the crossfire bridge or anything like that. Thanks! Title: Re: Running two different cards Post by: niooron on February 28, 2011, 01:47:40 AM Yeah, you just open two instances, one for each device using the -d [number] switch.
Title: Re: Running two different cards Post by: JWU42 on February 28, 2011, 01:53:06 AM Will be doing the same when my 6950 gets here Tuesday ;D
Title: Re: Running two different cards Post by: Beremat on February 28, 2011, 02:04:00 AM Awesome, thanks for the quick reply!
Title: Re: Running two different cards Post by: qed on February 28, 2011, 03:17:20 AM As other ppl said, you by just using another worker.
It's sad to see ppl don't understanding what's going on with bitcoins and how you will not get back even half of the cost of your card not considerating energy costs and the system up 24/7. Title: Re: Running two different cards Post by: Anonymous on February 28, 2011, 03:29:03 AM As other ppl said, you by just using another worker. That's why it's often wise to go the Mini-ITX route. I set up two users with 5770 mini-rigs that supposedly run at 100 watts idle. I will wait to see how it is full-load. It's sad to see ppl don't understanding what's going on with bitcoins and how you will not get back even half of the cost of your card not considerating energy costs and the system up 24/7. Title: Re: Running two different cards Post by: Beremat on February 28, 2011, 03:30:47 AM As other ppl said, you by just using another worker. Well, I don't pay for electricity so I don't care about that. The system will (and already has been) always be up 24/7. According to this (http://www.alloscomp.com/bitcoin/calculator.php) I'd get at least 50-75BTC before the next difficulty increase, and frankly, that will make me happy. The card isn't exclusively for bitcoin, I've been meaning to upgrade it for gaming as well.It's sad to see ppl don't understanding what's going on with bitcoins and how you will not get back even half of the cost of your card not considerating energy costs and the system up 24/7. Title: Re: Running two different cards Post by: Beremat on March 02, 2011, 01:20:59 AM Hmm, I can't get it to work. Both cards show up in GPU Caps Viewer, both cards show up in HWMonitor, but poclbm only sees my 5870. The GUI version only shows my CPU and Cypress, which is the 5870. Any ideas?
Title: Re: Running two different cards Post by: JWU42 on March 02, 2011, 01:22:39 AM I just added my 6950 and that is working fine. About to throw my 5770 back in to see what happens - will advise.
Title: Re: Running two different cards Post by: [Tycho] on March 02, 2011, 01:35:24 AM Hmm, I can't get it to work. Both cards show up in GPU Caps Viewer, both cards show up in HWMonitor, but poclbm only sees my 5870. The GUI version only shows my CPU and Cypress, which is the 5870. Any ideas? Plug some display in the second card and reboot your PC.Title: Re: Running two different cards Post by: Beremat on March 02, 2011, 01:36:09 AM Hmm, I can't get it to work. Both cards show up in GPU Caps Viewer, both cards show up in HWMonitor, but poclbm only sees my 5870. The GUI version only shows my CPU and Cypress, which is the 5870. Any ideas? Plug some display in the second card and reboot your PC.Title: Re: Running two different cards Post by: JWU42 on March 02, 2011, 01:53:44 AM Same issue with my 5770 - poclbm w/ GUI won't let me select it but it shows in device manager and MSI Afterburner.
Will try to plug in a display as suggested Title: Re: Running two different cards Post by: [Tycho] on March 02, 2011, 01:56:01 AM Same issue with my 5770 - poclbm w/ GUI won't let me select it but it shows in device manager and MSI Afterburner. Rebooting is not necesary if you press "Detect Displays" is CCC. I used spare VGA->RCA converter as makeshift "display" for detection :)Will try to plug in a display as suggested Title: Re: Running two different cards Post by: JWU42 on March 02, 2011, 02:13:27 AM Plugging in a new display got it recognized and could run both the 6950 and 5770.
After a reboot, the 5770 still shows up in CCC but no longer is available in poclbm... Need to find a way to run both with only 1 display plugged in !?! Title: Re: Running two different cards Post by: Beremat on March 02, 2011, 02:30:02 AM The technique worked for me, thanks [Tycho]!
JWU42, try plugging in the DVI->VGA converter that came with the card. Maybe that'll make the card think it's a display? Title: Re: Running two different cards Post by: JWU42 on March 02, 2011, 02:41:24 AM Beremat,
The dvi to vga isn't enough for a display to get recognized (at least for me) Title: Re: Running two different cards Post by: [Tycho] on March 02, 2011, 04:44:37 AM The technique worked for me, thanks [Tycho]! Buy more displays, they are cheap nowadays :)JWU42, try plugging in the DVI->VGA converter that came with the card. Maybe that'll make the card think it's a display? There can be a way to "emulate" display for card, but it's more complicated. Title: Re: Running two different cards Post by: Dr. Arnold on March 02, 2011, 04:51:40 AM Just got my 4850 running along side my 6950 :D
It seems the second card needs to be hooked up to a display and be sending some signal. I hooked mine up to the second hdmi port on my monitor and used CCC to extend my desktop. Then poclbm.exe was able to see it. Title: Re: Running two different cards Post by: Beremat on March 02, 2011, 12:17:14 PM http://www.overclock.net/folding-home-guides-tutorials/384733-30-second-dummy-plug.html
Title: Re: Running two different cards Post by: JWU42 on March 02, 2011, 03:40:33 PM Excellent - will hit Radio Shack on the way home tonight...
Title: Re: Running two different cards Post by: jkminkov on April 02, 2011, 11:03:38 AM I'm wondering if it is possible to mine on pci-e card with a dummy plug and use integrated VGA to handle display, chipset is Intel G31/G33
Title: Re: Running two different cards Post by: Fiyasko on April 02, 2011, 04:10:32 PM I dont see why not
Title: Re: Running two different cards Post by: nphard on April 02, 2011, 04:46:28 PM http://www.overclock.net/folding-home-guides-tutorials/384733-30-second-dummy-plug.html Thanks a lot for this link, exactly what I needed. |