PCie 2.1 on 1.1 compatibility

[dgbkiller]

my mobo is intel 102ggc2 released on april 2006 and has a bios update of 2007 december.

i am not clear whether its pcie 1 or pcie 1.1.
Which one is it?

i am planning to buy hd 5670 pcie 2.1

is 1.1 compatible with 2.1 cards? help me?

 

[akxpckwb]

2.0 PCI-e cards are compatible with 1.0 slots however I think there were some troubles with 2.1 running on 1.0

 

[Guest]

http://en.wikipedia.org/wiki/PCI_Express

PCI Express 2.1 supports a large proportion of the management, support, and troubleshooting systems planned for full implementation in PCI Express 3.0.However, the speed is the same as PCI Express 2.0. Unfortunately, it breaks backwards-compatibility between PCI Express 2.1 cards and some older motherboards

in other words, your mileage may vary.

 

[Toad772]

is 1.1 compatible with 2.1 cards? help me?

It all depends on the mobo, my PCI-E 1.0 mobo(G33M02) works fine with PCI-E 2.1 cards.

So the only way to find out is to try it or find someone else who has tried it with that mobo.

 

[dgbkiller]

It all depends on the mobo, my PCI-E 1.0 mobo(G33M02) works fine with PCI-E 2.1 cards.

So the only way to find out is to try it or find someone else who has tried it with that mobo.

when was your mobo made (release date)

 

[jaguarskx]

It doesn't matter when it was made. It depends on if the manufacturer properly implemented PCI-e 1.0/1.1 on the motherboard.

 

[xfx support]

A lot of times it depends on the bios on the motherboard. For instance I run a 6950 on an nforce 680i (pci-e 1.x board) and it works fine because the bios can recognize the card. Take an old nforce 4 board that hasn't had a bios update since 2006/2007 and it probably won't work. Take an asus nforce 4 board that had bios updates until 2009 or so and it will probably work fine. So the issue with some of the older boards is hardware wise it would work but the bios is so old it can't detect the card, and those old boards won't have a bios update because they're end of life.

 

[Toad772]

when was your mobo made (release date)

Not sure when it was made, but my bios is from 2008.

 

[jaguarskx]

i am planning to buy hd 5670 pcie 2.1

If you live in the US, then you might want to consider the Radeon HD 6670 instead since the HD 5670s are more expensive.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814102952

 

[dgbkiller]

Best answer selected by DGBKILLER.

 

[pangeran]

I don't know about PCI-e v1.0... but right now i'm using PowerColor HD5570 1GB DDR3 (AX5570 1GBD3-H) PCI-e x16 v2.1 on mobo Gigabyte G41MT-S2 (based on intel G41 chipset) which is still using PCI-e x16 v1.1, but works great until now (more than 1 year)