Can pcie 2.0x16 gpu can work with 3.0x16 slot with core 3rd gen i3 processer on

sameed

October 4, 2012 1:34:23 AM

As i was searching for the mother board for intel ivry bridge with 1155 socket, having GTX 550Ti which is a pcie2.0x16 gpu. So i desicded asrock H77 Pro4/MVP (http://www.asrock.com/mb/Intel/H77%20Pro4MVP/?cat=Speci...) which is a budget mob. fulfilling all my requirements but at the one point i got confused that it says : PCIe Gen3 is supported on 3rd Generation of Intel® Core™ i5 and Core™ i7 CPUs. As i will use this board with Intel® Core™ i3-3220 Processor [http://ark.intel.com/products/65693/Intel-Core-i3-3220-...] which does not support pcie3.0 slot. In this motherboard there is:
- 1 x PCI Express 3.0 x16 slot (PCIE2: x16 mode)
- 1 x PCI Express 2.0 x16 slot (PCIE3: x4 mode)
Can my graphic card will work fine on PCI Express 3.0 x16 slot which is in PCIE2: x16 mode.

More about : pcie 0x16 gpu work 0x16 slot core 3rd gen processer

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luciferano

October 4, 2012 1:40:18 AM

PCIe versions are all supposed to be backwards-compatible except sometimes for PCIe 2.1 cards and PCIe 1 variants such as 1.0a and 1.1. PCIe 2.0/2.1 will work in PCIe 3.0 slots and those slots will work as PCIe 2.0 if the CPU only supports up to PCIe 2.0.

PCIe 3.0 motherboards all support PCIe 2.0 and other versions. For example, a lot of Z68 boards supported PCIe 3.0 before there were any PCIe 3.0 LGA 1155 CPUs and the Sandy Bridge CPUs all work on them in PCIe 2.0.

Basically, don't worry, your system will work.

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daamz

October 4, 2012 1:57:54 AM

of coz will work

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reubenno

October 4, 2012 6:44:34 PM

Yeah it will work fine

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sameed

October 5, 2012 6:35:50 AM

daamz said:

of coz will work

A lots of "Thanks" for the answer.............

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sameed

October 5, 2012 6:45:26 AM

luciferano said:

PCIe versions are all supposed to be backwards-compatible except sometimes for PCIe 2.1 cards and PCIe 1 variants such as 1.0a and 1.1. PCIe 2.0/2.1 will work in PCIe 3.0 slots and those slots will work as PCIe 2.0 if the CPU only supports up to PCIe 2.0.

PCIe 3.0 motherboards all support PCIe 2.0 and other versions. For example, a lot of Z68 boards supported PCIe 3.0 before there were any PCIe 3.0 LGA 1155 CPUs and the Sandy Bridge CPUs all work on them in PCIe 2.0.

Basically, don't worry, your system will work.

A lots of "thanks" for the reply;

Then my graphic card will work with full bandwidth on ASRock H77 Pro4/MVP with Intel core i3 3220 on PCIE 3.0X16 slote...........

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sameed

October 5, 2012 6:53:33 AM

reubenno said:

Yeah it will work fine

Thanks for the reply

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sameed

October 5, 2012 7:11:37 AM

So then my graphic card will work with full bandwidth on ASRock H77 Pro4/MVP with Intel core i3 3220 on PCIE 3.0X16 slote. Please reply for my confurmation................. :sarcastic:

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luciferano

October 5, 2012 1:20:31 PM

sameed said:

So then my graphic card will work with full bandwidth on ASRock H77 Pro4/MVP with Intel core i3 3220 on PCIE 3.0X16 slote. Please reply for my confurmation................. :sarcastic:

You get the best that all relevant devices in the system supports (motherboard, CPU, graphics card). That is PCIe 2.0 x16. Don't worry, it won't hurt performance more than about 1% anyway. PCIe 3.0 is more important for non-gaming workloads and very high end multi-GPU systems.

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