Blur Busters Forums

I built a PC a bit ago, and have intermittently been debugging some high frame times. Let me know if this is the wrong forum/board to seek advice for this kind of problem, but here's my specs and what I've tried.

HWiNFO Report:
CPU: AMD Ryzen 7 7800X3D (Raphael, RPL-B2) 4200 MHz (42.00x100.0) @ 4850 MHz (48.50x100.0)
Motherboard: MSI MAG B650 TOMAHAWK WIFI (MS-7D75)
BIOS: 1.P0, 04/23/2026
Chipset: AMD B650 (Promontory PROM21L.1)
Memory: 32768 MBytes DDR5 SDRAM @ 3000 MHz, 36-36-36-76
- 16384 MB PC48000 DDR5 SDRAM - Corsair CMK32GX5M2D6000C36
- 16384 MB PC48000 DDR5 SDRAM - Corsair CMK32GX5M2D6000C36
Graphics: ASUS TUF RTX 4070 Ti GAMING OC
Drive: Samsung SSD 970 EVO Plus 2TB, 1953.5 GB, NVMe
Drive: Samsung SSD 980 PRO 2TB, 1953.5 GB, NVMe
Sound: NVIDIA AD104 - High Definition Audio Controller
Sound: ATI/AMD Zen APU - Display HD Audio Controller
Network: RealTek Semiconductor RTL8125 Gaming 2.5GbE Family Ethernet Controller
Network: MediaTek Wi-Fi 6E MT7922 (RZ616) 160MHz Wireless LAN Card
OS: Microsoft Windows 11 Home (x64) Build 26200.8328 (25H2)

Monitor: Asus ROG PC32UCDM

Here's a CapFrameX report that is the most representative of the type of issues I'm seeing:
If this isn't the kind of input lag this forum is for, suggestions for other forums would be appreciated, thanks!

This can be perfectly normal with some games (mostly Unreal Engine.) In fact, this is pretty good for something like Oblivion Remastered. I expected way worse than that

I forgot to mention my issues are in Overwatch 2, which for an esports title on this PC I expected to be perfectly smooth.

driedurchin wrote: ↑

11 May 2026, 01:45

A

Check dpc and isr interrupts (by service and drivers) thru latencymon, check also that c-states are disabled in bios. Make sure your msi are setted up properly (I had issues with 5090fe that was running on single msi line and should be 8 in my case)

unconnected wrote: ↑

13 May 2026, 07:56

Check dpc and isr interrupts (by service and drivers) thru latencymon, check also that c-states are disabled in bios. Make sure your msi are setted up properly (I had issues with 5090fe that was running on single msi line and should be 8 in my case)

DPC and ISR through latencymon comes back green, I can post a screenshot if you'd like. MSI is enabled, but I haven't checked the line count. I'll try C-states but have heard conflicting advice on if that helps.

I lied, DPC latency is 1.2ms from nvlddmkm.sys. That was with C-state control disabled.

MSI Utility reports a limit of 1, and max of 1 for my 4070ti. The MSI box is checked.

driedurchin wrote: ↑

13 May 2026, 21:31

MSI Utility reports a limit of 1, and max of 1 for my 4070ti. The MSI box is checked.

This is right, about latencymon post a txt with the main result after 10 minutes playing, and post screenshot of driver tab sorted by highest execution.