To start with, I have an "Asus Maxiumus VIII Ranger" motherboard, great board, it can do 2-way SLI at x16 (or x8). However, it's not doing that. It's running one card at x8 and the other at x4. The x4 card is what's bothering me...
Here's my specs:
CPU: i7 6700k
GPU: 2 Gigabyte Xtreme Gaming GTX 980ti
There isn't much need in detailing all the other components.
Now, I did do some troubleshooting and double checking. Fortunately, I have 2 cards, so the first thing I did is remove both and run each one individually, on the top PCI-E slot, to see if each ran at x16 alone. One ran at x16 while the other ran at x4. Found the reason why. The second card.
Next step I did was clean the pins. That didn't help. I did double check with Nvidia Control Panel and it says 'PCI-E x16 Gen 3', while both GPU-Z and my motherboard's post information say 'gen 3 @ x4'. One thing struck weird. It was that the motherboard said 'gen 3 @ x4 Native', which I thought may insinuated as if the card runs natively at x4 (like it was its default interface?)
Either way, I'm stumped. I haven't done anything to ruin the cards interface and I'm pretty sure cards aren't fragile JUST ENOUGH to start running x4 instead of x16. They either break or don't.
The only reason I'm left with (or maybe 2) is that either I'm getting wrong info posts, given 3D mark 11 extreme benchmark is giving comparable benchmarks to a regular card (around 8000) or the GPU bios are flashed improperly, causing the card to run at x4. I'm not sure. I need your help.
Note: I couldn't find another 3D Mark 11 extreme benchmark in the 3D mark site, so I used my first card (and a single result from guru 3D) for comparison.
Another Note: I've found a lot of 'Performance' benchmarks in 3D mark's site and they seem to score higher on single GTX 980ti. So, I'm back to square one, on the whole 'false reading' theory...
Really need your help!
Here's my specs:
CPU: i7 6700k
GPU: 2 Gigabyte Xtreme Gaming GTX 980ti
There isn't much need in detailing all the other components.
Now, I did do some troubleshooting and double checking. Fortunately, I have 2 cards, so the first thing I did is remove both and run each one individually, on the top PCI-E slot, to see if each ran at x16 alone. One ran at x16 while the other ran at x4. Found the reason why. The second card.
Next step I did was clean the pins. That didn't help. I did double check with Nvidia Control Panel and it says 'PCI-E x16 Gen 3', while both GPU-Z and my motherboard's post information say 'gen 3 @ x4'. One thing struck weird. It was that the motherboard said 'gen 3 @ x4 Native', which I thought may insinuated as if the card runs natively at x4 (like it was its default interface?)
Either way, I'm stumped. I haven't done anything to ruin the cards interface and I'm pretty sure cards aren't fragile JUST ENOUGH to start running x4 instead of x16. They either break or don't.
The only reason I'm left with (or maybe 2) is that either I'm getting wrong info posts, given 3D mark 11 extreme benchmark is giving comparable benchmarks to a regular card (around 8000) or the GPU bios are flashed improperly, causing the card to run at x4. I'm not sure. I need your help.
Note: I couldn't find another 3D Mark 11 extreme benchmark in the 3D mark site, so I used my first card (and a single result from guru 3D) for comparison.
Another Note: I've found a lot of 'Performance' benchmarks in 3D mark's site and they seem to score higher on single GTX 980ti. So, I'm back to square one, on the whole 'false reading' theory...
Really need your help!
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