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Asus Z87-Deluxe, PCI Express x16 slot reading as x8 - Page 2

post #11 of 12
i get what you mean but there is no x8 slot length; just x1, x4 and x16 for the physical size. but since many cards can be used with a lesser bandwidth w/o too much of a performance hit, it is cost effective to just use the larger slot and allow the user/buyer the option of using it.

some people have cut the end of a x4 slot to accommodate a x16 card to run it for physX or even crossfire (unlike SLI that needs x8 crossfire will work with x4)

but i slightly digress, with an intel cpu; sandy being PCI 2.0 and ivy/haswell being PCI 3.0; the most PCI lanes coming from the cpu will be 16. so it really makes no sense for the motherboard manufacturers to increase the cost and "wire" the second slot for x16 when in most all instances it will run in x8 mode.

edit: there are motherboards with a PLEX chip that states you will have x16/x16 but it really is just switching 16 lanes between both slots and not adding anything.
Edited by looniam - 8/11/13 at 3:51pm
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loon 3.2
(18 items)
 
  
CPUMotherboardGraphicsRAM
i7-3770K Asus P8Z77-V Pro EVGA 980TI SC+ 16Gb PNY ddr3 1866 
Hard DriveHard DriveHard DriveOptical Drive
PNY 1311 240Gb 1 TB Seagate 3 TB WD Blue DVD DVDRW+/- 
CoolingCoolingOSMonitor
EKWB P280 kit EK-VGA supremacy Win X LG 24MC57HQ-P 
KeyboardPowerCaseMouse
Ducky Zero [blues] EVGA SuperNova 750 G2 Stryker M [hammered and drilled] corsair M65 
AudioAudio
SB Recon3D Klipsch ProMedia 2.1  
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post #12 of 12
Well, without more than one x16 physical slot, you couldn't run SLI or CrossfireX.
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