Performance dropped significantly while the system was idle.
Performance dropped significantly while the system was idle.
CPU - i7 9700K CPU cooler - Dark Rock 4 RAM - GSkill Trident Z 16Gb 3600 MHz board - Aorus Pro Z390 GPU - MSI RTX 3070 About two weeks ago, my old PC (about two years old) unexpectedly slowed down significantly overnight. I was playing games like League of Legends at 350 FPS, but now it runs at 180 FPS or less, with stutters and drops to 135. Although still playable, this is clearly unusual. The problem affects all my games: Lol, Valorant, Forza H5, F1 22, etc. I've tried various troubleshooting steps and still don’t know what’s causing it. It seems like I invested around $2400 in parts and now have only about $1200 left. Below are the actions I’ve taken so far: Tried a different GPU – swapped my 3070 with a 1060 and got slightly better performance (about 10%). I assumed the original GPU was faulty. I returned it, bought another one, but performance only improved slightly. Ran MemTest86 on my RAM and found no errors. Verified XMP settings were enabled. Reinstalled Windows 10 just to be safe. CPU, GPU, and RAM usage remained low during gaming sessions. I questioned whether any component was overheating, but the cooling system looks good, filters are clean, and the room stays cool. I’m unsure if my CPU or motherboard is the issue. PSU? No luck. I’m hoping someone can suggest a solution or run a benchmark test to confirm everything is functioning properly in real use. Someone suggested checking Userbenchmark, but I’m not sure if it will help now.
I confirmed the removal and tested the sticks independently within the machine.
Your GPU isn’t reaching its full capacity. Have you adjusted any options in the Nvidia Control Panel? Updated drivers? Also, where were you sending your GPU? If a 1060 worked better and you returned it, only a minor improvement was noticed, indicating a significant problem with your 3070.
I tested both units on the motherboard, using different sticks each time. I didn’t repeat the test twice, and I also tried RAM from another machine, though the slow speed remained a problem.
As discussed earlier, the problem seemed to be with the GPU. I sent it back to MSI for replacement, but the new 3070 still had the issue. I didn’t make any changes in the Control Panel, and the drivers were current when the problem began. I’m planning to test this 3070 on my brother’s PC to get more details.
I transferred the graphics card to another machine with comparable specifications, and it worked much better. This only adds to my confusion more than before.