P55 and shared PCI-E Tags: Chipsets Bandwidth Graphics Cards Devices Motherboards PCI Express Last response: July 5, 2010 8:20 PM in Motherboards Share jimini24 July 5, 2010 7:51:22 PM Hi I don't understand that point : On most P55 motherboard, you find 2 PCI-E x16 slot when used with 2 Graphics cards, you run at x8/x8 on each slot what's appening if you have only one graphic card and one PCI-E device is pluged on the 8xPCI-E slot ? for example, you get this : http://usa.asus.com/product.aspx?P_ID=lGYmelQ8mJvPtYTv&templete=2 this device need Hi bandwidth , at least PCI-E x4 so is your system running at 8x/8x or 12x/4x ? (the device takes what he needs or the motherboard share the PCI-E x16 in x8/x8, with no regards of the device's bandwidth connected?) you can do the same with a PCIE x1 device pluged on 8x PCI Device do you have a system running et x15/x1 or x8/x8 anyway? ( so the graphics card is limited and the device has more bandwidth he needs) thanks for answers or sorry for english mistakes, it's not my native language More about : p55 shared pci GhislainG a b U Graphics card a c 191 V Motherboard July 5, 2010 8:20:35 PM It should run at x8-x8, but that isn't an issue except for the most powerful GPU that could lose a bit of performance. Can't find your answer ? Ask ! Publish Related resources: ForumI5-760 - P55 or H57 Motherboard? ForumNeed help with motherboard decision for new build- P55 vs X58 ForumI5 750 on MSI P55 CD53 - Can't get stable OC ForumAdvice on OC'ng Corsair XMS1600 RAM, ASUS P55 , I7-860 ForumEVGA EVGA P55 V motherboard BIOS Features ForumP55 Build ForumP55 and PCI-E limits ForumP55 & 2 16x pci-e lanes? ForumLF a motherboard that will support SATA 3, PCIe x16, and USB3 ForumPCI-E / Mobo Question ForumPopulating shared pci-e 16/8 slots? ForumBoth PCI and PCI-E cards on P55 mobo? ForumWhich is better memory ForumGeforce 9800gt for mainboard which has pci-e x16 2.0 low profile? ForumWhat does the pci-e 16x 8x 4x mean? Forum[Solved] EVGA P55 FTW power supply ForumH55 vs p55 ForumQuestions on EVGA P55 132-LF Motherboard Forum[Solved] PCI-E x16 and PCI-E x16 2.1 Need help ForumMSI P55-GD80, P55, Socket-1156, DDR3 More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !