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Title: PCI-e cards: must they be in a 16x slot? Post by: gnaget on June 16, 2011, 12:29:31 PM stuck in this forum still, so please bear with me. I want to jump into mining, and I am trying to spec out a rig for myself. I would like to run 3 GPUs per box, but it is difficult to find motherboards that have 3 PCI-e slots that can run at 16x. If I run them at 8x or even 4x, will I take a substantial hit in Mh/s?
Title: Re: PCI-e cards: must they be in a 16x slot? Post by: SomeoneWeird on June 16, 2011, 12:43:21 PM stuck in this forum still, so please bear with me. I want to jump into mining, and I am trying to spec out a rig for myself. I would like to run 3 GPUs per box, but it is difficult to find motherboards that have 3 PCI-e slots that can run at 16x. If I run them at 8x or even 4x, will I take a substantial hit in Mh/s? Yep, you can run GPU's for mining at x1. Grab a few PCI-E x1 extenders, cut the side off (OF THE EXTENDER, DONT CUT YOUR MOTHERBOARD!) so the GPU will fit in, stick a wire in it like so http://blog.zorinaq.com/images/pcie-short-photo.jpg and then put the extender in, and plug the GPU into that, should work like a charm then :) Title: Re: PCI-e cards: must they be in a 16x slot? Post by: thinkweis on June 16, 2011, 12:46:56 PM I've read that mining doesn't require the high PCI-e speed. I is more reliant on the gpu itself. You shouldn't lose much, if anything, because you are using a lower speed slot. Good Luck!
Title: Re: PCI-e cards: must they be in a 16x slot? Post by: SomeoneWeird on June 16, 2011, 12:55:11 PM I've read that mining doesn't require the high PCI-e speed. I is more reliant on the gpu itself. You shouldn't lose much, if anything, because you are using a lower speed slot. Good Luck! Well done, you just repeated my answer, with less info. Title: Re: PCI-e cards: must they be in a 16x slot? Post by: imafish2002 on June 16, 2011, 01:03:52 PM Thanks for the detailed reply there SomeoneWeird, just ordered myself a 1x pci-e extender off ebay. Now should I order another 5830 or stick my old 4870 in there? hmmm :-\
Title: Re: PCI-e cards: must they be in a 16x slot? Post by: SomeoneWeird on June 16, 2011, 01:06:14 PM Thanks for the detailed reply there SomeoneWeird, just ordered myself a 1x pci-e extender off ebay. Now should I order another 5830 or stick my old 4870 in there? hmmm :-\ Get at LEAST a 5830 :) Title: Re: PCI-e cards: must they be in a 16x slot? Post by: jgm_coin on April 11, 2013, 01:47:01 AM I've read that mining doesn't require the high PCI-e speed. I is more reliant on the gpu itself. You shouldn't lose much, if anything, because you are using a lower speed slot. Good Luck! Well done, you just repeated my answer, with less info. LOL! hilarious, SomeoneWeird Title: Re: PCI-e cards: must they be in a 16x slot? Post by: wetjet43 on April 11, 2013, 04:58:03 AM I've been looking for the answer to this question. Thank you!
Title: Re: PCI-e cards: must they be in a 16x slot? Post by: xrobau on April 11, 2013, 05:04:20 AM DealXtreme have some 1x -> 16x Extenders. I'll find the link.
(No need for potentially dangerous wires on your motherboard then) --Rob Title: Re: PCI-e cards: must they be in a 16x slot? Post by: xrobau on April 11, 2013, 05:06:05 AM Here you go:
http://dx.com/p/pci-e-1x-to-16x-riser-card-extension-cable-15-5cm-length-100061 Title: Re: PCI-e cards: must they be in a 16x slot? Post by: jbower on April 11, 2013, 05:06:22 AM or if your looking to go all the way.
http://3.14.by/en/read/videocard-pcie-conversion-x16-x1 Title: Re: PCI-e cards: must they be in a 16x slot? Post by: paul21 on April 11, 2013, 05:14:48 AM Be careful with this, the x16 slots are designed for 75W and the x1 only 25W. You run the risk of drawing too much current from your motherboard since the video card might be designed for 75W. You could modify the cable to provide more 12V power.
Title: Re: PCI-e cards: must they be in a 16x slot? Post by: tencevad on April 11, 2013, 05:57:33 AM Be careful with this, the x16 slots are designed for 75W and the x1 only 25W. You run the risk of drawing too much current from your motherboard since the video card might be designed for 75W. You could modify the cable to provide more 12V power. Don't mean to be spammy, but I sell 1x to 16x adapters with molex power that are perfect for mining and provide the extra needed power. If you're interested, I link to my items in my signature. Title: Re: PCI-e cards: must they be in a 16x slot? Post by: joemmm on April 11, 2013, 07:18:52 AM Yup, x16 is not needed.
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