The my lan is not functioning.
The my lan is not functioning.
Turn off the PC completely, disconnect the power supply, and hold the front case power button for 15 seconds. Verify your network interface appears in Device Manager. If absent, reset the CMOS. Ensure the network card is recognized in Device Manager; if not, consider using a Linux bootable drive if wired connections are available. Otherwise, the interface may be non-functional.
Pressing the power button will turn off the PSU. Clearing the CMOS resets the BIOS settings back to their default state.
Genius! The issue was resolved when you held the power button for 15 seconds while the PSU was off. This likely reset or stabilized the system, bringing the LAN back online. Let me know if you need more details!
I really didn’t know how to explain it. I’ve been working on getting NICs back from PCs for years using this approach. Certain boards are more likely to drop out, but this technique consistently helps bring them back.
I received a final inquiry from you, buddy. As mentioned, I purchased a 5090 from Amazon and chose to return it within one month. It performed a decent frame rate on games, though sometimes it displayed around 150 FPS while actually running at about 40 FPS. There was noticeable stuttering, and the overall smoothness didn’t match expectations even with those numbers. When I overclocked the GPU using the Gigabyte app for roughly an hour to check its performance on 3DMark, I didn’t change the voltage—just adjusted the GPU clock and memory clock. Afterward, the GPU would occasionally crash, but once I stabilized the settings and increased the clock again, it worked well. My concern is whether this short overclock session might have damaged the GPU.
Overclocking carries certain risks, though they’re usually manageable unless you pushed the GPU and memory clocks excessively, leading to instability. If you followed the Gigabyte app settings and didn’t modify the power limit, it should work well. The main issue likely lies elsewhere—your overall system configuration and monitor resolution. In your earlier post, you mentioned an i7 12600K (or possibly a mix of i5 and i7). The i5 12600K isn’t ideal with the 5090, while the i7 offers a slight edge. Your monitor’s resolution becomes critical here. The 5090 supports 4K at high refresh rates, but pairing it with either processor may cause performance issues if the display demands are too high. If you’re still facing low FPS or stutters despite correct hardware, it could stem from game settings, optimization behavior, DLSS/Multiframe usage, or other factors. Without the card, we can only guess. If you’d like, share your exact processor type, monitor brand and model, and the games you played, and we can explore potential causes together.
i adjusted the memory clock by 6k and added some MHz on the GPU speed until it began crashing. I didn’t modify the power limit because the gigabyte setting didn’t allow changes. I attempted to reach the maximum score for 3dmark, but the GPU would crash a few times during testing. Eventually, I found the optimal OC setting to stabilize it and avoid crashes while completing the test. This was only a short session—about an hour—to experiment with 3dmark. Afterward, I reset the GPU back to its default configuration. I already returned the device yesterday to Amazon under their 1-month return policy, as even a high-end card like the 12600k isn’t suitable here, and I don’t see any benefit in keeping it after this issue. Also, the cost of the purchase wasn’t worth it given these problems.