I think you’re not being objective or aware of the problem (no offense): You have powerful hardware that you’re not getting all the performance or potential available. Many people end up changing hardware, because they believe that their potential is far below that required for not realizing about these things (a simple adjustment in a BIOS), and they continue to encounter the same problem with the new hardware.
You say that other games work correctly (maybe in a subjective way you think they go to the maximum level they can give you or you just thing they are working fine because they operate below your spectatives), but you may not be aware that they can go much better. Maybe a game at 1080p does not need pciex 16 3.0, but there are other games like GTA V or The division that I’m sure should be giving you problems at least stutters or framepacing or limited FPS. Not to mention games at 4k 60fps (impossible to keep stable at pciex_1x).
You must fix the problem (you have already located it), not only for this game, but also to avoid having to update your hardware for erroneous reasons, or blame the problem on something that does not cause the problem.
Desktops i7 CPUs has a max of 16x pcie lanes, so if you for example try an SLI, your pciex slots goes to pciex 8x/8x, unless you had a plx chip as my motherboard has which allows pciex 16x/16x, and all the bandwitdh available and required for 1080ti.
Also if you have many optanes or M.2 devices or pciex sound cards, they affect pciex too, lowering to 8x, 4x, 2x or even 1x, that’s why is better to use SSD sata devices because they don’t affect pcie lanes.
However and in case nothing of these causes are your issue, check your BIOS, and look for pciex 16x slot speed and verify is running on Gen.3. Also be sure your 1080ti is plugged ib pciex16x/16x_x8 slot, because 2nd slot is only 8x and third slot is 4x
Intel® Z370 Chipset
2 x PCIe 3.0 x16 (x16 or dual x8)
1 x PCIe 3.0 x16 (x4 mode) *1
3 x PCIe 3.0/2.0 x1
1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)*2
1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (PCIE 3.0 x 4 mode)3
6 x SATA 6Gb/s port(s)
Support Raid 0, 1, 5, 10
Supports Intel® Smart Response Technology4
Intel® Optane™ Memory Ready
*1 The PCIe x4_3 slot shares bandwidth with PCIex1_3. The PCIe x4_3 runs x2 mode by default.
*2 When the M.2_1 socket is operating in SATA mode, SATA port 1 will be disabled.
*3 When the M.2_2 socket is operating in PCIEX4 mode, SATA port 5. 6 will be disabled.
*4 This function will work depending on the CPU installed.
*5 Due to limitations in HDA bandwidth, 32-Bit/192kHz is not supported for 8-Channel audio.
I get what you mean but I’m unsure whether the gpu is actually running in x1 considering I normally game at 165hz @ 1440p, games such as gta v on high settings without any issues on high framerates.
In the bios under PCH management it states “PCIEX16_1 Linked as x1”. Idk what that means. My Nvidia control panel does state that I’m running it in x16 gen 3.0.
Maybe a Firestrike run would surely prove whether it’s getting that much worse performance or not?
Suppossedly when you change to gen3 and save settings pressing F10, if you enter BIOS again it should show something like pciex linked as 16x. Weird here is, in auto it should set to 16x and not 1x, so is possible something would be limiting the bandwith. Do you have m.2 ssd or something like that?
Anyway set it at gen3 to enable full bandwidth, save with F10 and go windows again, check gpu-z and go game and do a benchmark. Maybe now is solved.
And if is not solved, you could consider to slot the card in PCIEX16_2
Expansion Slots
28-Lane CPU-
3 x PCIe 3.0/2.0 x16 ( x16, x16/x8, x16/x8/x4)
28-Lane CPU-
1 x PCIe 2.0 x1
Basically means that with a 28 lanes cpu (5820k) your gpu in slot one would work pciex16x 3.0 unless you had occupied the other pciex slots, included the m.2 device. I think something in your BIOS is wrong because an m.2 should use at max. 4 lanes with is shared with pci16ex_1 and pci16x_2, but your slot is basically using pcex 2.0 1x, so the BIOS is not distributing the bandwidth properly. Maybe with a 40 lanes cpu you wouldn’t have had this problem, but in this case, you should investigate further the documentation. Even remove the m.2 ssd if that was possible. But am sure you can make the gpu work pciex 3.0 even with m.2 ssd sloted.
Modern motherboards takes lanes for m.2 directly from chipset, not from your pciex lanes, so gpu bandwitdh is never affected, but some x99 designs looklike to have this issue.
Set your monitor refresh rate to 60hz in windows, then in game. I had to do this with my 144hz monitor because I was getting terrible stutter and lag spikes.
I’m asking you this because it’s a pity that having a 144 Hz monitor you feel forced to play at 60 Hz, since you can not enjoy more than 60 frames per second on the screen. If you have seen my screenshot, I play at 120Hz with a stable speed of 120 fps blocked by v-sync and 0 sttuter, and you can not imagine how good it is to play at 120 fps compared to 60 fps. What’s more, if you are at 60 hz with v-sync you have a delay of 16 ms, while at 120 hz it is only 8 ms, which is imperceptible even with shooters. In case of having v-sync off at 60 hz and getting + 60fps you will have 0ms delay but you will suffer tearing and not a smooth experience.
If you are getting a high stutter count, make sure Windows Game Mode is off. For me that was directly causing a lot of stutters. Also you might try disabling hyperthreading in the BIOS. It was causing stutters in the benchmark with my 2600k.
I tried this but it didnt change anything, Im thinking this function might work different on older mobos like mine. Im gonna contact asus and see if they can help me. Im glad for you!
yesterday i played every game without any problem (also forza in 165 fps with v and g-syc) but today i fire up my pc and the problem is back… over night.
CPU Z show me my old problem again … X-1.
I tried do reset my bios but nothing happens at this time.
So i send an mail to asus maybe they have a solution that realy helps us out
) try to contact him and maybe tell him your problem