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Sabertooth 990FX R2 help.

post #1 of 10
Thread Starter 
Hey folks, I'm in a bit of a pickle here. Currently I'm running Crossfire with dual Radeon 7850's (won't get into which ones) and for some reason my first PCI-e slot is only running at 8x while my second PCI-e slot is running at 16x. My issue is that I cannot for the life of me find the setting in my BIOS to, I suppose force, my first slot to use 16x like it says it should be doing right on the dang box lol. Anyways, I apreciate any and all info you folks may have on this. And yes, I am kind of a noob when it comes to the deeper functions of a BIOS.
post #2 of 10
Try asus forums in this case.
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post #3 of 10
Thread Starter 
I shall, thanks.
post #4 of 10
Thread Starter 
Well, that was a bust. The ASUS website has absolutely no information about the various functions in the BIOS. And any thing regards to technical support is a link loop to a non existant download.
post #5 of 10
Ask them at ROG why its running at 8x

Unless your talking about bottom PCI express slot....

The top 2 are 16x
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post #6 of 10
Thread Starter 
I'm using the top 2 slots capable of 16x. And the top most slot is only running at 8x.
post #7 of 10
Welcome to the long RMA part. It took me 2 months to get it straighten out then 2 months later the samething with a replacement mobo. I still fighting with Asus for another working mobo.
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SAMSUNG EcoGreen F4 2TB Plextor Black Blu-ray Burner Phenom II X4 stock Cooler Windows 10 
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post #8 of 10
Thread Starter 
I've had it for too long so I can't do an RMA claim. Yay me!
post #9 of 10
Quote:
Originally Posted by Zutaradimus View Post

I've had it for too long so I can't do an RMA claim. Yay me!
Then it is time for a new mobo. There is nothing you can do.
HTPC
(11 items)
 
  
CPUMotherboardRAMHard Drive
AMD A-3870K AsRock A75 Pro (FM1) HyperX DDR3 1866 8 GB SAMSUNG 830 256gb 
Hard DriveOptical DriveCoolingOS
SAMSUNG EcoGreen F4 2TB Plextor Black Blu-ray Burner Phenom II X4 stock Cooler Windows 10 
MonitorPowerCase
LG M2762D-PM Glossy Black 27" 5ms (1920x1080) Antec HG 900 Gerenic ATX Case 
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HTPC
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CPUMotherboardRAMHard Drive
AMD A-3870K AsRock A75 Pro (FM1) HyperX DDR3 1866 8 GB SAMSUNG 830 256gb 
Hard DriveOptical DriveCoolingOS
SAMSUNG EcoGreen F4 2TB Plextor Black Blu-ray Burner Phenom II X4 stock Cooler Windows 10 
MonitorPowerCase
LG M2762D-PM Glossy Black 27" 5ms (1920x1080) Antec HG 900 Gerenic ATX Case 
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post #10 of 10
Have you tried switching the graphics cards around to see if the issue might be with the card? I have an old 9600GT that runs at half the size of the PCIe slot. If I put it in a x16 slot it runs at x8, in an x8 it runs at x4 and so on. Also have you tried resetting the bios?
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