Cross Fire question.

don256us

Uber Folding Senior

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Joined

Jul 17, 2003

• Jul 3, 2014

• #1

Do you have to have a Cross Fire certified MB to do CF? I have an older EVGA X58 SLI MB. I just bought two R9 280X for folding. I would like to CF them for my occasional gaming.

I've been an Nvida guy for years and years and finally made the jump back to AMD.

 

EarthDog

Gulper Nozzle Co-Owner

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Joined

Dec 15, 2008

Location

Buckeyes!

• Jul 3, 2014

• #2

There may be some hacks to get it to work, but, no dice on that board.

 

Last edited: Jul 3, 2014

ATMINSIDE

Sim Racing Aficionado Co-Owner

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Joined

Jun 28, 2012

• Jul 3, 2014

• #3

EVGA doesn't do much with AMD, but that board should run Crossfire just fine.

Edit: if you've got the equipment already it can't hurt to try.

Edit 2: It will work

 

Last edited: Jul 3, 2014

OP

don256us

Uber Folding Senior

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Joined

Jul 17, 2003

• Jul 3, 2014

• Thread Starter
• #4

ATMINSIDE said:

EVGA doesn't do much with AMD, but that board should run Crossfire just fine.

Edit: if you've got the equipment already it can't hurt to try.

Edit 2: It will work

Click to expand...

I will try it. We were talking about it in the shop and thought that the SLI/Xfire might really all be done in the connector. That's where the real bandwidth is. We were thinking, and I am hoping that SLI/Xfire are platform independent.

 

EarthDog

Gulper Nozzle Co-Owner

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Joined

Dec 15, 2008

Location

Buckeyes!

• Jul 3, 2014

• #5

Surprisingly, there isn't much performance loss without the connector (when you can do that)... but that may be in PCIe3 implementations too... Look at the new AMD cards... no connector required... same slots.

After further digging, not sure you even need to hack/flash anything to get that support... report back!

 

Last edited: Jul 3, 2014

Supertrucker

Way Too Jealous Member

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Joined

Dec 13, 2002

Location

Southern California

• Jul 3, 2014

• #6

Sli most certainly is not platform independant, but to my knowledge crossfire is. So long as you have two gpu slots crossfire should work.

 

OP

don256us

Uber Folding Senior

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Joined

Jul 17, 2003

• Jul 3, 2014

• Thread Starter
• #7

Well, I don't have an EVGA MB after all. I have an ASUS. I didn't bother to check the model number. Its still an X58 chipset. I have both cards in and the xFire is set up. I gamed a little and now I'm folding. I had to underclcok and undervolt the cards to keep the heat and noise down. Come winter time I can boost that up again.

I can say that two 280X's on a 750 watt PSU and X58 MB does work.