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Other => CPU/GPU Bitcoin mining hardware => Topic started by: cryptopi on July 12, 2013, 04:53:30 AM



Title: Pci-e 1x vs 16x for GPUs? Help please
Post by: cryptopi on July 12, 2013, 04:53:30 AM
I've got almost all of the details for my new rig sorted out except for the motherboard because I have a question regarding it. My understanding is that 1x (pci) means it has one data lane and 16x means it has 16 data lanes. I am using 7950 cards, FYI. When purchasing a motherboard, does it matter if the 7950 cards are attached to a 1x or a 16x pci? What I really mean is: will a 7950 card hooked up to a 1x pci have a lower hash rate than one hooked up to a 16x pci? Or does it not matter which type of pci the cards are attached to?

Thanks


Title: Re: Pci-e 1x vs 16x for GPUs? Help please
Post by: monkeymonkey on July 12, 2013, 05:05:10 AM
for bitcoin mining there is no difference. 


Title: Re: Pci-e 1x vs 16x for GPUs? Help please
Post by: cryptopi on July 12, 2013, 05:15:08 AM
for bitcoin mining there is no difference.  

Oops, sorry clarification: scrypt mining. Still no difference?

Thanks


Title: Re: Pci-e 1x vs 16x for GPUs? Help please
Post by: icyak on July 12, 2013, 05:16:13 AM
for bitcoin mining there is no difference.  

Oops, sorry clarification: scrypt mining. Still no difference?

Thanks

Still no difference...
maybe you need to check something about risers and powered risers


Title: Re: Pci-e 1x vs 16x for GPUs? Help please
Post by: notlist3d on July 12, 2013, 06:14:53 AM
Biggest difference will be on risers if u need powered or not.  Also its kind of nice to have a longer one but not a necessary thing.


Title: Re: Pci-e 1x vs 16x for GPUs? Help please
Post by: cryptopi on July 12, 2013, 03:09:21 PM
alright thanks. I will be using 30cm powered risers I suppose


Title: Re: Pci-e 1x vs 16x for GPUs? Help please
Post by: xgtele on July 12, 2013, 03:49:03 PM
alright thanks. I will be using 30cm powered risers I suppose

If you mine with up to 3 GPUs, you don't need to have a powered risers. Also, if risers are 19cm - they are long enough for most rigs.