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Use PCIE X1 to X16 Adapter for CrossFire AMD 7770

Last response: in Graphics & Displays
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September 29, 2013 10:27:22 AM

Hi everyone.

Here is the stats of my current PC:

AMD FX-6100 3.3 GHZ 6 Core CPU w/ stock cooler
AMD/ASUS HD 7770 OC 1GHZ 1GB DirectCU V2
12GB DDR3 RAM
MSI 760GM-P34 (FX) Mobo
500GB WD Drive
600W Ultra Power Supply

I'm being given another ASUS HD 7770 OC videocard from my friend. I want to Crossfire these, to get better performance in Battlefield 3, but I only have a PCI-E x16 and a PCI-E x1 slot.

I found this adapter online:

http://www.ebay.ca/itm/New-PCI-E-PCI-Express-x1-To-x16-...

There is also a powered version, but I'm not sure if I'd need that as I have another GPU power adapter.

Could this adapter be used to Crossfire two AMD HD 7770 cards? I know I'd be limited to about 5GB bandwidth on the PCI-E x1, but it should give performance increase anyways...right?
a b À AMD
a c 143 U Graphics card
September 29, 2013 10:37:54 AM

That motherboard does not support Crossfire, so it doesn't matter what adapter you use.

-Wolf sends
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September 29, 2013 11:40:33 AM

My board supports "Hybrid CrossfireX", which allows the Onboard graphics chip (760g) to Crossfire with the discrete card (HD 7770).

How can I do that? Think it'd benefit me?
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a b À AMD
a b U Graphics card
September 29, 2013 11:51:35 AM

To get any benefit from that second card you will need to get a new motherboard. No adapter is going to get rid of the limitations of the board you have. On top of that Crossfireing two low end boards does not give much of a performance boost anyway.
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a b À AMD
a c 143 U Graphics card
September 29, 2013 11:54:42 AM

Verify what motherboard you have. I see nothing in the specs or manual which states Hybrid Crossfire supported.

-Wolf sends
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a b À AMD
a c 143 U Graphics card
September 29, 2013 2:06:43 PM

Ok. Given that, the answer is no. AMD Hybrid Crossfire will only work with AMD 24xx/34xx series discrete graphics.

-Wolf sends
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September 29, 2013 2:58:15 PM

Darn. It's a shame that they didn't keep up support for Hybrid Graphics. Although, maybe they stopped because the performance increase wasn't worth it.

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