Serious gaming Question about MSI P67A-GD65

I really need to know for a fact, I mean really need to know.   I play on getting 2 6990's and put them in CrossfireX.  The thing is I see this board is 2 PCI E 16x but I see PCI E (16x, 8x).  Does that mean the 2nd PCI E slot is running only at 8x?  The sole purpose of having 2 6990s is to max out performance for the whole year.  I see the 5970x2 lasted a whole year and is still faster than the 580GTX.  I want to have 2 6990s to have superior FPS status for the whole year of 2011.  Now if it's only 16x lanes for the top slot but 8x lanes for the last slot then will I see a performance loss of potential than if it was 16x on the bottom too?
MSI P67A-GD65 for 2 ATI 6990's in CrossfireX
If it's only 8x on the bottom then I cannot upgrade to a 2nd card.  I see bench performance differences of 8x vs 16x with the latest cards of the day were massive.  I can see how the cards of today would be even more massive.

Quote from: bobkn on 25-January-11, 11:04:00
The Maximus IV includes an nVidia NF200 PCI-E controller. Regular P67 boards only have 16 total lanes for graphics.
One thing I'm not clear on: the data rate with PCI-E on the P67 is supposed to be double that of the older chipsets. Naively, the data rate on a P67's X8 graphics bus ought to be the same as for one of the older X16s.
A pair of 6990s? Maybe you should have waited for Socket 2011. 40 PCI-E lanes, quad channel memory, 8 core CPUs, etc.
Perhaps the reason why they only have dual 8x and triple 8x not dual 16x or triple 16x.  I think the NF200 chip is just a to make it look more expensive.
The last post in this forum the guy says it decreases performance.
http://forums.anandtech.com/showthread.php?t=237334
It adds more latency.  I had an EVGA Killer Xeno Pro which is a hardware NIC for the PC.  When I do head to head headshots on my screen in TF2 against another sniper it shows fire on my barrel but no kill or damage on the shooter after I die.  Even with a ping of 20ms and the other guy had like equal or more.  When I removed and sold it, everytime I see a flash on my screen and I'm lined up properly for the headshot with someone with equal or a bit more ping than me I always get the kill or at least damage before I die.  I honestly thing adding more things was like the P4 architecture having long pipelines.  The longer it takes data to travel the slower it will be and could be significant in performance loss.  I'm going to have 2 ATI 6990's on my MSI board and see what will happen.

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  • MSI P67A-GD65 infinite boot/loop problem

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     Edit: Removed foul language
                                    Henry

     djmx,
    Stop the use of foul language disguised or not.
                  >> Please read and comply with the Forum Rules <<
     Edit: How did you flash BIOS, did you use the forum tool or some other method?

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    Quote from: Differentone on 02-June-12, 20:30:48
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