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Help with 1 of my Classifieds running at PCIE 2.0 8x

post #1 of 11
Thread Starter 
Hey guys,

I have a pair of 680 Classifieds on a Rampage 4 Extreme and for some reason my second card is running at 8x. From what I understand, both should run at 16x as I have them both in red slots.

Here is a pic of the config. Can anyone lend a hand on why they wouldnt both be in x16?

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post #2 of 11
Must be a bios setting all four slots a x16 capable. My Asus board has an option to change from 2.0-3.0
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post #3 of 11
Well, according to the motherboard layout, you will only get x16/x16 when placing the cards on PCI-E slots 1 and 3. Plus, if you have populated any other red slot with a card, like what you have done with your WiFi card, which according to your build log photos, is on the 4th red slot (and if your soundcard is in another red slot, can't see clearly where it is), the 3rd slot will downgrade to x8.
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post #4 of 11
Thread Starter 
Quote:
Originally Posted by Starbomba View Post

Well, according to the motherboard layout, you will only get x16/x16 when placing the cards on PCI-E slots 1 and 3. Plus, if you have populated any other red slot with a card, like what you have done with your WiFi card, the 3rd slot will downgrade to x8.


ahhhh!

So its the fact that I have populated another slot! Is there anyway to manually force the other slot to run at 1x??

I could put the wifi card in the 1x slot I guess...
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post #5 of 11
Quote:
Originally Posted by trippinonprozac View Post

ahhhh!

So its the fact that I have populated another slot! Is there anyway to manually force the other slot to run at 1x??

I could put the wifi card in the 1x slot I guess...

Well, to see if you can force the last slot to be x1, you'd have to check the BIOS. I'm not familiar with the RIVE, but my RIIIE cannot do that.

If you cannot use the other slot (it does seem to be a tight fit), you might want to consider using a x1 PCI-E riser. One thing though, try to keep the soundcard connected directly to the motherboard, there may be a quality decrease if you use it.

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post #6 of 11


Are you using the 1st and 2nd red slots?

That second red slot is physically pinned at 8x even though it looks 16x.
    
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post #7 of 11
Thread Starter 
Quote:
Originally Posted by MrTOOSHORT View Post



Are you using the 1st and 2nd red slots?

That second red slot is physically pinned at 8x even though it looks 16x.

Oh serious!!!

Thats rubbish and yes I am.

Is the black slot ok for 16x?
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post #8 of 11
The slots marked 16x on that picture are the only ones that'll do 16x . The black slot is 8x aswell. Your sound card shouldn't affect having your gpus running 16x in the appropiate slots.
    
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post #9 of 11
Quote:
Originally Posted by trippinonprozac View Post

Oh serious!!!

Thats rubbish and yes I am.

Is the black slot ok for 16x?

Nope. Even if it runs @ 8x, It is connected to the PCH instead of going to the CPU (hence the different color), so it will not help you with SLI at all. Your best bet is using the 1st and 3rd red slots, and using the black ones for the WiFi/soundcard
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post #10 of 11
Thread Starter 
Thanks everyone for your help! I will change the config next time the loop is drained! smile.gif
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0verK1LL
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