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Title: Setting a second gpu via pcie 1x on cgminer Post by: tomewok on January 24, 2014, 04:21:01 PM Hi guys, i added a second Sapphire hd7950 to my rig today, and it doesn't show up in cgminer, i need it to run at the same settings than my first hd7950, the first is connected via pcie 16x and the second via pcie 1x on a asrock H-61 BTC Pro
This card shouldn't require a shorting pin since it's a motherboard specially created for mining purposes Contact me in pm Title: Re: [1 LTC Bounty] Setting a second gpu via pcie 1x on cgminer Post by: sighle on January 24, 2014, 06:45:30 PM Try this thread if your computer isn't recognizing a new GPU.
https://bitcointalk.org/index.php?topic=102547.0 Edit: Sorry just saw that you said you shouldn't need a shorting pin for this Mobo. It could be a problem with the card. Try switching the old one out for the new one and see if it's recognized. If your computer sees the new card and mines on it just fine, you might have to try the jumper or you could have a problem with the PCIE slot on the MoBo or the riser. Title: Re: [1 LTC Bounty] Setting a second gpu via pcie 1x on cgminer Post by: tomewok on January 24, 2014, 06:49:36 PM Thanks, but the mobo i'm using have been designed only for mining purposes and for plug gpu on the pcie 1x so i don't think i should do this.
Title: Re: [1 LTC Bounty] Setting a second gpu via pcie 1x on cgminer Post by: Starscream on January 24, 2014, 07:02:52 PM 1. Have you tried the card in the PCIE x16 slot? To see that it even works?
2. Does the motherboard detect the GPU in the BIOS? 3. Are you using powered risers? Title: Re: [1 LTC Bounty] Setting a second gpu via pcie 1x on cgminer Post by: tomewok on January 24, 2014, 07:09:50 PM Yeah card are both working on pcie x16
I dont see any gpu menu in my bios, only cpu I'm using powered risers but didn't plugged the molex since there's a molex in the mobo to power the gpus Title: Re: [1 LTC Bounty] Setting a second gpu via pcie 1x on cgminer Post by: bobasaurus on January 24, 2014, 07:17:43 PM If they are powered risers, you have to attach the molex to the psu or they will not work at all... I'm not sure how your mobo is designed, but I would attach the psu's peripheral power molex connectors straight to your powered risers.
Title: Re: [1 LTC Bounty] Setting a second gpu via pcie 1x on cgminer Post by: tomewok on January 24, 2014, 07:19:00 PM If they are powered risers, you have to attach the molex to the psu or they will not work at all... I'm not sure how your mobo is designed, but I would attach the psu's peripheral power molex connectors straight to your powered risers. Gonna try Title: Re: [1 LTC Bounty] Setting a second gpu via pcie 1x on cgminer Post by: tomewok on January 24, 2014, 07:27:44 PM If they are powered risers, you have to attach the molex to the psu or they will not work at all... I'm not sure how your mobo is designed, but I would attach the psu's peripheral power molex connectors straight to your powered risers. It's working thanks you, i feel dumb to not have tried this before, but since the mobo had the molex to power the gpu i did it wrong, Title: Re: [1 LTC Bounty] Setting a second gpu via pcie 1x on cgminer Post by: httpcore on January 24, 2014, 08:17:43 PM If they are powered risers, you have to attach the molex to the psu or they will not work at all... I'm not sure how your mobo is designed, but I would attach the psu's peripheral power molex connectors straight to your powered risers. It's working thanks you, i feel dumb to not have tried this before, but since the mobo had the molex to power the gpu i did it wrong, send me your ltc add in pm btw Also make sure you plug the PCI-E adapter in the correct way. If you do it incorrect it will burn the PCI-E slot. I've seen it happen to a few customers Title: Re: [1 LTC Bounty] Setting a second gpu via pcie 1x on cgminer Post by: tomewok on January 24, 2014, 08:44:26 PM Ok, thanks for the advice :)
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