- May 6, 2019
- 5
- 0
- 6
Okay, the title says it all. I don't even know where to begin with this one. I initially started out with a asus z270e mb with a i7-7700k cpu. I installed an rtx 2080 ti into the top slot and it did once report as 16x. ever since then, it's only ever reported as 8x. So my first thought is that it must be something in the bios. I cleared the cmos, rebooted into the bios and the uefi still reports that the card is running at 8x instead of 16x speed. So then I thought that it might be a defective 2080 ti card. I replaced it with a 1080 ti card and it too only reported as 8x speed. So then I changed sides and swapped the 1080 ti card out for the amd vega 64. Again, the uefi still reported the card as running at 8x speeds.
This is when I then suspected that I might have a defective motherboard and/or cpu. So... I ordered a whole new motherboard and cpu. I'm now rocking an asus z390e with a i9-9900k cpu. I was sure this would fix the issue I was having... WRONG! After installing my 2080 ti once again. I noticed that the uefi persisted in reporting 8x instead of 16x speed. Now, keep in mind, this is on a new system, new cpu, no bios settings changed, installation and yet the pcie lanes on TWO SEPARATE builds will not operate at full 16x speeds.
Now, before you ask me which slot the graphics card is in, i'll tell you right now, it's only ever gone into the top most x16 slot (the one closest to the cpu)
What the *#&@ am I doing wrong here? Could it be that I have two defective cpu's and/or motherboards? (what's the likelihood of that?)
Could it be that the graphics card is recognizing that my monitor is only capable of 1920x1080 and therefore is reporting to the cpu that it only needs 8x lanes instead of the full x16? (that might be a bit ridiculous but I just dunno anymore.)
Please help one very frustrated individual grow his hair back by stopping him from pulling out more.
Thanks. :/
This is when I then suspected that I might have a defective motherboard and/or cpu. So... I ordered a whole new motherboard and cpu. I'm now rocking an asus z390e with a i9-9900k cpu. I was sure this would fix the issue I was having... WRONG! After installing my 2080 ti once again. I noticed that the uefi persisted in reporting 8x instead of 16x speed. Now, keep in mind, this is on a new system, new cpu, no bios settings changed, installation and yet the pcie lanes on TWO SEPARATE builds will not operate at full 16x speeds.
Now, before you ask me which slot the graphics card is in, i'll tell you right now, it's only ever gone into the top most x16 slot (the one closest to the cpu)
What the *#&@ am I doing wrong here? Could it be that I have two defective cpu's and/or motherboards? (what's the likelihood of that?)
Could it be that the graphics card is recognizing that my monitor is only capable of 1920x1080 and therefore is reporting to the cpu that it only needs 8x lanes instead of the full x16? (that might be a bit ridiculous but I just dunno anymore.)
Please help one very frustrated individual grow his hair back by stopping him from pulling out more.
Thanks. :/