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Asus Maximus III Gene Runs x16 @ Second PCI-E 2.0 x16 port?

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i am wondering if this motherboard will run x16 with a graphic card put in the second pci-express port aka the lowest, bcs i want to use the PCI-E x8 port for a USB3.0 addon card and my MSI N460GTX Hawk uses two slots bcs of it's cooler, so does it do x16 in both PCI-Express 2.0 x16 ports when only one card is in?




Asus Maximus III Gene


it's the lowerest red PCI-Express 2.0 x16 port i am thinking about ^^; (if anyone don't get what i mean.)
 

cadaveca

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NO, it only runs @ 8x. jsut swapped my card in there to verify.
 
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The difference in performance between PCIe 2.0 x16 and PCIe 2.0 x8 is minimal (~1%) at worst. If you need to use the lower slot to fit a USB 3.0 card, I would do it and not worry about the performance impact.
 
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brandonwh64

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I think thats the limitation with the P55 PCIex slots correct? i know i have the X58 rampage II gene and its full 16x16
 

freaksavior

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^ I know my evga x58 mini atx is 16/16
 
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System Name Lynni The Dark Hero
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Cooling Noctua NH-D15 Chromax.Black (Only middle fan)
Memory Geil Dragon 4x8GB@3000mhz 16-17-17-35 T1 (GWW416GB3000C15DC)
Video Card(s) PowerColor RX 6800 XT Red Devil 2400/2000MHz@1.050V | Sapphire Radeon RX 590 Nitro+ Special Edition
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no LGA1366 / X58 here only LGA1156 / P55 it uses eletronic x16 @ Single and x8 @ dual but still it would be nice if it was x16 even in the lowest port when there is only one card in it.
 

Voltage_Drop

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The 1156 boards are indeed limited to [x8x8] or [x16x4] depending on mobo. though as another poster stated, that the difference is minimal and wouldnt be noticed
 
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