Continuous stuttering occurs during gameplay while using the mouse.
Continuous stuttering occurs during gameplay while using the mouse.
Short update:
Before switching to McAfee, I tested changing the GPU to the top PCIe slot and noticed improvements in CS:GO and Valorant performance. However, stuttering persisted. Moving it back to the bottom slot didn’t fix the issue.
I’m still reviewing the high volume of warnings and errors in the event viewer.
I’ll also consider running a DPC latency test, as suggested by OCUK members.
Any relevant details would be helpful.
Further update:
Following the removal of McAfee, it is clear that the AV is not responsible for the problem.
Per instructions from a member of the OCUK forum, I performed further checks:
Verifying the PCIe slot speed using GPU-Z indicated stable readings at idle and under load (Running the GPU-Z rendering test). The same information appeared when testing at higher loads.
The 3DMARK PCI Express bandwidth measurement was 1.53 GB/s, which is half of the 3.06 GB/s reported in the original post—this lower speed was also observed in the second PCIe slot when using the GPU. I am unsure why this discrepancy occurred.
Note: I have turned off HPET in Device Manager as advised by several users.
This situation is quite significant. Based on my understanding, it may be connected to the motherboard, GPU, or possibly software interactions with these hardware parts. If anyone has additional insights or information based on the details above, it would be highly appreciated. I suggest reviewing the linked post, as the components listed match what was shared previously.
We're venturing beyond my area of knowledge here. The warnings in the Event Viewer definitely point to something being amiss. Another concern is: I'm currently at work, so I can't verify my GPU-Z. However, unless I'm misinterpreting what's listed, the physical PCI-E slot is operating at x2 instead of x16, which would greatly reduce bandwidth. It's unclear why this would occur unless the GPU isn't receiving enough power. My PSU should be adequate, but ensure those PCI-E power cables are securely connected to the GPU; a loose connection could easily happen.
Thanks for your response! It seems you're not completely misinterpreting anything. My GPU's Bus interface is currently showing "PCI Express 3.0 x2" and I've noticed it's running slower than expected—especially after moving it to a different slot. This likely explains the big drop in bandwidth from 3.06GB/s to 1.53GB/s. I think the power cables might be the culprit, as shifting the GPU could have loosened something. It also makes sense that performance issues are now affecting other titles. It's a bit puzzling since this wasn't a problem before, and it feels like an unintended side effect of trying to fix things.
Just making notes on the thread:
I've checked and found that:
In the second PCIe slot the GPU operates at x2 Native with the Bus interface at PCI Express x2 3.0. This number stays constant no matter what the system is doing—whether it's loading or idle—it doesn't vary much.
In the top slot the GPU runs at x4 Native with the Bus interface at PCI Express x4 3.0. That value also remains unchanged.
Ensuring the PCIe power cable is properly connected to both the GPU and the PSU hasn't helped much.
I cleaned the GPU contacts using compressed air and Isopropanol, and re-cleaned the PCIe slots.
Applied the Nvidia DisplayPort Firmware updater and updated the GPU accordingly.
Tried several related BIOS settings without noticeable results.
When attempting to reinstall the GPU in the top slot after cleaning, I didn't see any output even though the slot worked fine an hour earlier. Temporarily moving the GPU to the second slot fixed the issue of no output. The fact that both the PCIe slot and GPU were clean suggests there might be a problem with the top slot itself, or perhaps the graphics card needs re-seating.
Currently, I'm considering flashing my motherboard's BIOS since it was recently updated to the latest version, though I'm not sure if that's the root cause.
I'm planning to check if I can connect to a setup like mine. I want to verify my graphics card works and see if it still runs at x2 and x4 natively on another system. If it does, it might point to firmware or hardware issues. The motherboard could also have problems.
If you have any ideas or advice, it would be great.
Hey everyone,
I’m sorry for the long break.
In recent days I’ve experimented with LatencyMon and wanted to share my findings:
While idle, the tool showed everything was functioning normally, with latency values staying below 80µs.
Once the program started running for about 20 minutes, the number of interrupts increased noticeably, eventually reaching levels that suggested a problem.
When launching a game, LatencyMon detected significant issues, noting a "Highest measured interrupt to process latency" of 2051.20µs and a "Highest reported DPC routine execution time" of 1763.11µs (linked to Microsoft’s NDIS).
During actual load testing, the "Current measured interrupt to process latency" stayed under 300µs.
The software concluded there was likely a network-related problem, possibly due to a WLAN adapter, though I don’t use one.
I’m not very familiar with this software or the meaning of these numbers. Could you help interpret what they mean?
Thanks!