F5F Stay Refreshed Hardware Desktop I'm working on getting my GPU to operate at x16 speed.

I'm working on getting my GPU to operate at x16 speed.

I'm working on getting my GPU to operate at x16 speed.

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Z
zJuquinha
Junior Member
15
04-19-2022, 09:38 PM
#1
You have a 5080 Ryzen 7 9800X3D processor, an x670e motherboard, an SSD in the M.2_1 and M.2_4 slots, a GPU in the top PCIE slot. Your system struggles to reach 16 lanes despite high PCIe usage, and the BIOS is set for X16 but didn't resolve the issue. You're considering a Hite Y70 case with the original riser cable. You've been working on this for two months without success.
Z
zJuquinha
04-19-2022, 09:38 PM #1

You have a 5080 Ryzen 7 9800X3D processor, an x670e motherboard, an SSD in the M.2_1 and M.2_4 slots, a GPU in the top PCIE slot. Your system struggles to reach 16 lanes despite high PCIe usage, and the BIOS is set for X16 but didn't resolve the issue. You're considering a Hite Y70 case with the original riser cable. You've been working on this for two months without success.

T
TheBambooGamer
Junior Member
41
04-20-2022, 03:42 AM
#2
Welcome to the forums, newcomer!
So I have a 5080 ryzen 7 9800x3d and a x670e mobo. I have a ssd in the m.2_1 and m.2_4 slot.
Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.
I do have a hyte y70 case with the original riser cable could that be a issue?
Have you tried running the system without the riser cable to see if the issue is due to that? This would need you to breadboard your innards.
T
TheBambooGamer
04-20-2022, 03:42 AM #2

Welcome to the forums, newcomer!
So I have a 5080 ryzen 7 9800x3d and a x670e mobo. I have a ssd in the m.2_1 and m.2_4 slot.
Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.
I do have a hyte y70 case with the original riser cable could that be a issue?
Have you tried running the system without the riser cable to see if the issue is due to that? This would need you to breadboard your innards.

B
BlitzSquadHD
Member
195
04-24-2022, 08:57 AM
#3
Ryzen 7 9800x3d
Lian Li hydoshift 360
Rog strix X670E-E
64 gb DDR5 6400 Gb/s
Wd black 2 TB NVMe
Crucial 1 TB NVMe
5080 PNY
Rm 1000 Corsair 4 years
Hyte y70
Windows 11
OLED G27p6s KTC
Bios version American Megatrends inc. 3402 11/12/2025
I haven't managed to use my GPU without the riser cable for this case, as far as I understand, I attempted to mount it without the cable and it didn't fit.
This was a fresh build; previously with my 3080ti three months ago, everything worked fine. The issue began with my 5080.
B
BlitzSquadHD
04-24-2022, 08:57 AM #3

Ryzen 7 9800x3d
Lian Li hydoshift 360
Rog strix X670E-E
64 gb DDR5 6400 Gb/s
Wd black 2 TB NVMe
Crucial 1 TB NVMe
5080 PNY
Rm 1000 Corsair 4 years
Hyte y70
Windows 11
OLED G27p6s KTC
Bios version American Megatrends inc. 3402 11/12/2025
I haven't managed to use my GPU without the riser cable for this case, as far as I understand, I attempted to mount it without the cable and it didn't fit.
This was a fresh build; previously with my 3080ti three months ago, everything worked fine. The issue began with my 5080.

J
Joethemexicain
Junior Member
16
04-26-2022, 08:47 PM
#4
Checking the chart on pages 1-8 of the manual, do you have either of the other two PCIEX slots in use, and are you employing M.2_3 for any purpose? Additionally, is the BIOS configuration aligned with page 44 in the Bios Manual, with the Bandwidth Bifurcation Configuration set to PCIE X16 Mode rather than Auto Mode?
J
Joethemexicain
04-26-2022, 08:47 PM #4

Checking the chart on pages 1-8 of the manual, do you have either of the other two PCIEX slots in use, and are you employing M.2_3 for any purpose? Additionally, is the BIOS configuration aligned with page 44 in the Bios Manual, with the Bandwidth Bifurcation Configuration set to PCIE X16 Mode rather than Auto Mode?

H
Heroteddy
Member
203
05-12-2022, 10:16 PM
#5
I'm not utilizing any of the PCIE slots except the top one for my GPU. I'm not using m.2_3. Although it appears to be x16, I don't have a disable option for pciex_2—this might matter. The alteration switch on page 1-16 of the MMO manual is set to auto as well.
H
Heroteddy
05-12-2022, 10:16 PM #5

I'm not utilizing any of the PCIE slots except the top one for my GPU. I'm not using m.2_3. Although it appears to be x16, I don't have a disable option for pciex_2—this might matter. The alteration switch on page 1-16 of the MMO manual is set to auto as well.

I
Illuminati45
Junior Member
15
05-22-2022, 09:28 AM
#6
I'm unable to use the GPU without the riser cable for this case, as I've tried mounting it without the cable and it didn't fit. This is why I mentioned this.
I
Illuminati45
05-22-2022, 09:28 AM #6

I'm unable to use the GPU without the riser cable for this case, as I've tried mounting it without the cable and it didn't fit. This is why I mentioned this.

M
Marky67
Junior Member
40
05-24-2022, 05:06 AM
#7
I've been searching for a solution for nearly two months without success. It seems it's time to stop being lazy and take action. Thank you for your assistance—it means a lot!
M
Marky67
05-24-2022, 05:06 AM #7

I've been searching for a solution for nearly two months without success. It seems it's time to stop being lazy and take action. Thank you for your assistance—it means a lot!

V
vortex_42
Junior Member
15
05-24-2022, 11:50 AM
#8
You might consider starting at Step 1 to ensure the Gen 4 operation is executed properly. This could assist in confirming whether the Auto function is functioning correctly. It may also be useful to briefly disable the riser cable to eliminate its influence, or to check if a new PCIE 5.0 riser cable is necessary.
V
vortex_42
05-24-2022, 11:50 AM #8

You might consider starting at Step 1 to ensure the Gen 4 operation is executed properly. This could assist in confirming whether the Auto function is functioning correctly. It may also be useful to briefly disable the riser cable to eliminate its influence, or to check if a new PCIE 5.0 riser cable is necessary.

P
PsychoFel
Member
69
06-06-2022, 03:46 PM
#9
Thank you for the assistance!
P
PsychoFel
06-06-2022, 03:46 PM #9

Thank you for the assistance!

T
timmyblack
Member
229
06-13-2022, 08:11 PM
#10
The Y70 riser cable is designed exclusively for PCIe 4.0 use. It's important to configure the motherboard to run at PCIe 4.0 instead of automatic settings.
T
timmyblack
06-13-2022, 08:11 PM #10

The Y70 riser cable is designed exclusively for PCIe 4.0 use. It's important to configure the motherboard to run at PCIe 4.0 instead of automatic settings.

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