PCI-e 3 (x16 , x16, x4) vs 3 (x16/0 or x8/x8, x4) Hate it when they do this.

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doublepedaldylan

doublepedaldylan

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I know the basics of what this means, but when they don't use a standardized notation, I get confused. Is the first one saying it runs (x16/0 or x16/x16, x4) or am I interpreting that wrong?

Thanks in advance.
 
Solution
viridiancrystal
The notation shows how the lanes can/will be used. x16, x16, x4 means that the first will run x16 always, as will the second, with the third running x4 always. It will not matter how cards placed in them are arranged. x16/0 or x8/x8 means that with only one slot occupied that slot will run x16, if both are in use they will both run x8, with x4 being the final slot always running x4.
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doublepedaldylan

doublepedaldylan

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I realize the number of lanes part, and although x16/x16 is ideal, the bottleneck caused by an x8/x8 is more or less negligible in a lower level xfire/sli setup (at best, the person buying will run a pair of 660's or 7870's for the setup).

Question was more in regards to the notation (specifically if the (x16, x16, x4) is running x16/x16 sli or x8/x8?).
 
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viridiancrystal

viridiancrystal

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The notation shows how the lanes can/will be used. x16, x16, x4 means that the first will run x16 always, as will the second, with the third running x4 always. It will not matter how cards placed in them are arranged. x16/0 or x8/x8 means that with only one slot occupied that slot will run x16, if both are in use they will both run x8, with x4 being the final slot always running x4.
 
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