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R9 270x crossfire blue screen of death.

Last response: in Graphics & Displays
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March 8, 2014 8:49:50 PM

I recently bought a second R9 270x for my system and I have correctly installed and you would think that everything would be fine and good to go. But I started the computer and about after 2 mins of it being on, it blue screened. So I took t out and then removed ALL my AMD/ATI driver software and re-installed the card into my computer. Everything from then on was fine and I thought I had fixed the problem. So I decided I should download and install some new drivers since I had just removed them all before and it downloaded fine but about half way through the installation my system blue screened again. I cant find any information to back up about why my system is doing this and I also talked to the people who I bought the stuff off and they have no idea why its happening either. I know none of my hardware is faulty because I have checked the PCI x slots and the graphics cards and they are all working fine.

Here are my system specs:

AMD Radeon R9 270x Sapphire dual x (x2)
16 gb ram
GIGABYTE GA-B85M-D3H Mother Board - supports crossfire.
Intel Haswell Core i5-4570 3.2GHz 6MB LGA1150
COOLER MASTER V-series 750S GOLD 750W

Any reply's relating to fix this will be very appreciated, thanks.
March 8, 2014 8:59:36 PM

Firstly, that motherboard is terrible for crossfire. Your first slot is running at X16 and your other card is running at X4. So yuor second R9 270X is being limited in performance.

Best crossfire performance is when the slots are X8/X8.

I can only blame this issue towards one main component, and that is the Motherboard.

Does one card work 100% fine?
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March 8, 2014 10:25:04 PM

unknownofprob said:
Firstly, that motherboard is terrible for crossfire. Your first slot is running at X16 and your other card is running at X4. So yuor second R9 270X is being limited in performance.

Best crossfire performance is when the slots are X8/X8.

I can only blame this issue towards one main component, and that is the Motherboard.

Does one card work 100% fine?


Yes both the cards work 100% fine. Thanks for the reply, I might have to look into getting a New Motherboard. But I heard that 4x pci slots dont impact performance too much...

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March 8, 2014 10:35:05 PM

well, It does, and by quite a lot. When it is running at X4 mode, the card is limited to much of it's performance. The card in the X16 slot has to do much of the work.
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March 8, 2014 11:55:05 PM

unknownofprob said:
well, It does, and by quite a lot. When it is running at X4 mode, the card is limited to much of it's performance. The card in the X16 slot has to do much of the work.


Okay im going to take your word and im looking into buying this Motherboard. Im guessing it would be good for crossfire cause it has 3x 16x pci slots. ASROCK FATAL1TY Z87 KILLER LGA1150 ATX MOTHERBOARD
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March 9, 2014 12:59:41 AM

I dont get why my motherboard says it supports crossfire if having a 16x and a 4x pci slots is such an issue.
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March 9, 2014 5:26:38 AM

Morgan Phillipson said:
unknownofprob said:
well, It does, and by quite a lot. When it is running at X4 mode, the card is limited to much of it's performance. The card in the X16 slot has to do much of the work.


Okay im going to take your word and im looking into buying this Motherboard. Im guessing it would be good for crossfire cause it has 3x 16x pci slots. ASROCK FATAL1TY Z87 KILLER LGA1150 ATX MOTHERBOARD


A very, very good choice indeed. I know 2 people who have that motherboard and I will not disappoint. A great board, and one I quite often recommend. Well, The second one is in X4, but it still does crossfire so it can still be labeled that way, with Quad SLI, two GPU's are often in X4 slots anyways but for 2 GPU's, you want it in X8/X8.

That board can do X8/X8/X8 Configuration in tri-fire.
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