The PC is not posting.
The PC is not posting.
I assembled my initial PC roughly a year and a half ago, but faced problems even before it was finished. During PSU installation, I was surprised—it started up and functioned partially. I encountered driver conflicts, screen sleep issues, and frequent crashes. After some adjustments, it operated intermittently, so I delayed fixing it. Around a month prior, I tried to speed up the boot process by turning on Memory Context Restore. That changed things; my PC ceased responding completely. Only after leaving it off for an overnight period, attempting CMOS reset, and using BIOS flashback did it resume, though briefly. Notably, no POST indicators remained active during these attempts. I suspect a faulty motherboard, so I replaced it with a new one. The replacement model worked temporarily—lasting about eight restarts—but when I disconnected the PSU, it emitted significant power surges before shutting down permanently. Now I believe the issue stems from power delivery, possibly damaging the board. I swapped it out and purchased a fresh Lian Li 1000W Edge power supply. It became the sole functional component in my system since another unit didn’t boot. After installation, benchmarks showed good performance; restarts were smooth. However, after leaving it on overnight to update game patches, I encountered persistent sleep problems. Restarting the PC failed to wake the display. Eventually, I rebooted and still couldn’t get it to power up. I’ve also tested other RAM modules without success. The component list includes: Ryzen 7 7800x3d 32GB Corsair Vengeance DDR5 6400, MSI MAG B650 Tomahawk Wi-Fi, Asrock B650 LiveMixer XFX, Speedster Merc310 RX 7900X, Lian Li Edge 1000W.
XFX 7900XTX might indicate a graphics driver problem or hardware fault. Similar cases have required returning items via RMA for other XFX 7000 models. I no longer rely on XFX due to this concern. Perform a CMOS reset and check if the device boots normally. If possible, follow the steps below. Otherwise, consider consulting a professional. You might also attempt booting without the GPU and relying on the CPU’s built-in graphics. Use DDU to remove the GPU drivers for your 7900XTX, enabling the option to skip automatic Windows driver installs. Run the remove and restart process in DDU. Afterward, manually download only the 7900XTX drive. Test the system thoroughly; if the issue persists, re-download Adrenalin. Turn off sleep and hibernation settings, as these can trigger various problems.
I tried to reset CMOS and power up, but it didn’t work now. The GPU is gone and integrated graphics are active. Should I try flashing the BIOS again? That method helped me get the board running initially.
Consider using one stick of RAM if you haven’t already. Then perhaps the flashback will resolve, avoiding the need to repeatedly flash the BIOS—this isn’t typical. I’d try it, but a professional check would be wise.
I already have one stick inside, so I’ll attempt to shift the slot. I haven’t performed a BIOS flashback on this motherboard yet—only on the last two models.