Does my motherboard support PCI Express 3.0

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Does my motherboard support PCI Express 3.0

Postby Dutchman » Sat Feb 02, 2013 9:18 am


I am looking for a new GPU and was looking around when i saw that alot of cards use PCI Express 3.0. I dont really know much about this so thats why im here. This is my motherboard:


I'm looking for a GPU that supports DirectX11 and my budget is about 200 euros.

Please help,

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Postby evasive » Sat Feb 02, 2013 10:16 am

The G31 chipset supports PCIexpress 1.1 just like the P35:

PCI express 3.0 is backwards compatible: ... xpress_3.0
PCI Express 3.0

PCI Express 3.0 Base specification revision 3.0 was made available in November 2010, after multiple delays. In August 2007, PCI-SIG announced that PCI Express 3.0 would carry a bit rate of 8 gigatransfers per second (GT/s), and that it would be backward compatible with existing PCIe implementations.
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Postby Karlsweldt » Sat Feb 02, 2013 10:17 am

Per the PCI-E standards, devices must be backward-compatible to older standards.. but not forward-compatible. This means that if a motherboard or device is of the latest standards, then it will recognize all standards. If a motherboard has only the 2.0 standards, it may not recognize the latest standard for a device.. unless that device is certified backward-compatible.
If your motherboard is 2010 vintage or older, it may not be PCI-E 3.0 compatible.

Check this reference link:
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Postby bdub » Sat Feb 02, 2013 7:45 pm

the main incompatibility you might encounter is if the pci-e 3.0 videocard you want to put in does not have an auxillary power input. your motherboard may not give all the power the card needs through the pci slot since it is the older 1.1 revision... so be careful which card you choose, find out if it has an aux power input, or make sure its power envelope is lower than 75 watts.
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