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4850 & 3870 crossfire X (?)

post #1 of 16
Thread Starter 
Hi,

As of recently I just acquired myself a HIS 4850 with stock cooler to replace my faulty HIS IceQ3 Turbo clocked x3870 that I returned.

However, I still have another x3870 that I originally had crossfired with the turbo.

My main question is, is it possible to crossfire x3870 with the x4850?

I would have thought not seeing as they're both different architectures but I thought with CrossFire X technology it would be somewhat possible.

So far it doesn't work, but I fear that it may be perhaps due to something i'm doing wrong.

Let me know if you any of you have a clue over this
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post #2 of 16
Well it's possible, supposively been done. I've been trying to get mine to work however the drivers are buggy to say the least. I keep BSODing.


Best of luck
post #3 of 16
Thread Starter 
Was this with hacked or ATI CCC drivers? Thanks for the speedy response.
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post #4 of 16
You can't CF between 38xx and 48xx and verified with ATI people.

Quote:
Originally Posted by loveduckie View Post
Hi,

As of recently I just acquired myself a HIS 4850 with stock cooler to replace my faulty HIS IceQ3 Turbo clocked x3870 that I returned.

However, I still have another x3870 that I originally had crossfired with the turbo.

My main question is, is it possible to crossfire x3870 with the x4850?

I would have thought not seeing as they're both different architectures but I thought with CrossFire X technology it would be somewhat possible.

So far it doesn't work, but I fear that it may be perhaps due to something i'm doing wrong.

Let me know if you any of you have a clue over this
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post #5 of 16
Thread Starter 
Quote:
Originally Posted by Me_XMan View Post
You can't CF between 38xx and 48xx and verified with ATI people.
awh, shame. Can you please cite me a source so I can verify this or where ever you read this?

Which ATi people did you clarify with?
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post #6 of 16
I've also heard you can CF those 2 cards. I was also hearing something about how flexible crossfire was, ill try to find out how to CF those 2, hold on
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post #7 of 16
Quote:
Originally Posted by loveduckie View Post
awh, shame. Can you please cite me a source so I can verify this or where ever you read this?

Which ATi people did you clarify with?
Yeah I thought that too, it was posted on here somewhere, last week I think. I'll see if I can dig it out.

ATi says No -

http://www.fudzilla.com/index.php?op...=8075&Itemid=1

http://www.tomshardware.co.uk/forum/...870-48xx-cards
Edited by SpuddGunn - 7/2/08 at 7:18am
    
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post #8 of 16
Thread Starter 
OK, that's all I wanted to read tbh. Looks like I will have to sell my x3870 towards getting another x4850.

That'd be a pretty bad ass couple.
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post #9 of 16
I'll try this out when I get my 4870 tomorrow or Friday too =)
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post #10 of 16
Probably won't work.

http://www.fudzilla.com/index.php?op...7993&Itemid=34

But there may be a chance in the future.

http://www.xtremesystems.org/forums/....php?p=3085191

Try it though!
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