F5F Stay Refreshed Hardware Desktop Problems with PCIe 3.0 riser cables?

Problems with PCIe 3.0 riser cables?

Problems with PCIe 3.0 riser cables?

A
augustb19907
Senior Member
456
04-13-2021, 05:40 AM
#1
Hello, everyone! To put things in perspective, I'm using a Core i7-14700KF with a Z690 chipset and a MSI 3070 motherboard. It's connected to a 4.0 16x PCIe slot via an EK Riser cable. Previously, I had a Z170 chipset and a 6th generation Intel CPU. The graphics card wasn't upgraded—it came pre-installed on a PCIe 3.0 slot with the riser cable. I was also running Windows 10 before the changes. Now, when I play Final Fantasy XIV at 1080p, my GPU usage hits 99% most of the time, and watching a video on another monitor causes noticeable stuttering and poor performance. This behavior didn't occur before the upgrade and wasn't present with a similar setup earlier. I've confirmed I have the latest drivers installed. Could a PCIe 3.0 riser cable connected to a PCIe 4.0 port be causing this issue? Also, how can I verify the riser cable is indeed a 3.0 model? Thank you!
A
augustb19907
04-13-2021, 05:40 AM #1

Hello, everyone! To put things in perspective, I'm using a Core i7-14700KF with a Z690 chipset and a MSI 3070 motherboard. It's connected to a 4.0 16x PCIe slot via an EK Riser cable. Previously, I had a Z170 chipset and a 6th generation Intel CPU. The graphics card wasn't upgraded—it came pre-installed on a PCIe 3.0 slot with the riser cable. I was also running Windows 10 before the changes. Now, when I play Final Fantasy XIV at 1080p, my GPU usage hits 99% most of the time, and watching a video on another monitor causes noticeable stuttering and poor performance. This behavior didn't occur before the upgrade and wasn't present with a similar setup earlier. I've confirmed I have the latest drivers installed. Could a PCIe 3.0 riser cable connected to a PCIe 4.0 port be causing this issue? Also, how can I verify the riser cable is indeed a 3.0 model? Thank you!

R
raroman07
Member
107
04-13-2021, 09:01 AM
#2
Sorry, but your message is hard to read in dark mode. It’s easier for many users. I could just read the "Thank you!" at the end. Sorry. Stay safe and good luck.
R
raroman07
04-13-2021, 09:01 AM #2

Sorry, but your message is hard to read in dark mode. It’s easier for many users. I could just read the "Thank you!" at the end. Sorry. Stay safe and good luck.

C
CraftiousMC2
Junior Member
31
04-13-2021, 05:11 PM
#3
Open the BIOS on your motherboard, navigate to the PCIe configuration and set it to Gen 3 manually. Using a Gen 3 riser between high-speed parts can lead to unexpected problems.
C
CraftiousMC2
04-13-2021, 05:11 PM #3

Open the BIOS on your motherboard, navigate to the PCIe configuration and set it to Gen 3 manually. Using a Gen 3 riser between high-speed parts can lead to unexpected problems.

C
CD_Bish
Junior Member
30
05-01-2021, 04:58 PM
#4
I feel a bit frustrated here too, though it's not a major issue. You can simply emphasize the text and it will appear normal.
C
CD_Bish
05-01-2021, 04:58 PM #4

I feel a bit frustrated here too, though it's not a major issue. You can simply emphasize the text and it will appear normal.

A
ariannadj
Junior Member
1
05-04-2021, 09:47 PM
#5
Without the riser cable, the test proceeds smoothly.
A
ariannadj
05-04-2021, 09:47 PM #5

Without the riser cable, the test proceeds smoothly.

Z
ZeroZaper
Junior Member
5
05-10-2021, 12:28 PM
#6
Apologies for the mistake. Just transferred from another browser and didn’t realize. Corrected it! It makes perfect sense now. You’re right about doing it in the BIOS—it’s a good idea. I’ll give it a shot! Thanks. The custom watercooling loop won’t work, but it will take a lot of time and effort to test without it.
Z
ZeroZaper
05-10-2021, 12:28 PM #6

Apologies for the mistake. Just transferred from another browser and didn’t realize. Corrected it! It makes perfect sense now. You’re right about doing it in the BIOS—it’s a good idea. I’ll give it a shot! Thanks. The custom watercooling loop won’t work, but it will take a lot of time and effort to test without it.

R
rubixgirl
Member
167
05-10-2021, 12:33 PM
#7
never mind. keep some barb fittings and soft tubes around for testing in various setups or to detach them completely. for better drainage, add a valve at the top and bottom of the loop, plus a stop valve on each side to simplify the process.
R
rubixgirl
05-10-2021, 12:33 PM #7

never mind. keep some barb fittings and soft tubes around for testing in various setups or to detach them completely. for better drainage, add a valve at the top and bottom of the loop, plus a stop valve on each side to simplify the process.