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Author Topic: PCI-Express Speed and mining  (Read 1667 times)
elfranne
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June 10, 2012, 11:27:55 PM
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I am wondering what is the influence of the speed of the PCI-E on the mining speed ?
For example if i get the mb :  GA-990FXA-UD5 it has 5 PCI-E slot : x16, x16, x8, x4, x4.  So would i get lower hashrates because of limited bandwidth on the 8x and 4x PCI-E slots ?
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Each block is stacked on top of the previous one. Adding another block to the top makes all lower blocks more difficult to remove: there is more "weight" above each block. A transaction in a block 6 blocks deep (6 confirmations) will be very difficult to remove.
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DILLIGAF
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June 10, 2012, 11:34:00 PM
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I am wondering what is the influence of the speed of the PCI-E on the mining speed ?
For example if i get the mb :  GA-990FXA-UD5 it has 5 PCI-E slot : x16, x16, x8, x4, x4.  So would i get lower hashrates because of limited bandwidth on the 8x and 4x PCI-E slots ?

Slot speed has no influence on the hash rate for example I have a 6870 on 1x slot with an adapter cable it does the same speed as when it was in a 16x slot.
flatronw
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June 13, 2012, 02:44:12 AM
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I would be very dubious about buying the GA-990FXA-UD5 motherboard. I currently have two of these boards and cannot make the boards run more than 3 x 5850  cards. This is using Xubuntu 11.04 64b, 11.6 drivers, SDK 2.4 and CGMiner 2.3.2 - 4.2
You may have more success with other OS and Miners but at the moment and as there seems to be no solutions offered from this Forum I would say beware of the Gigabyte GA-990FXA-UD5 if you intend to do the above

Also these boards have a documented history of problems booting from a USB stick.
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