Is the 24-pin PSU cable properly connected?
Is the 24-pin PSU cable properly connected?
Everything functions as intended and only the motherboard LEDs are being displayed.
Remove the RAM entirely and check for a boot failure message during startup. Improper insertion can stop the system from launching. A RAM warning will appear if there’s an issue. Try installing one stick at a time until it works, as experienced when replacing the motherboard last year.
If the system uses a modular PSU, the CPU power cable should also fit into the power supply connector. Verify he installed the M.2 correctly—it sits at an angle, so gently press it flat until it’s level. Technically, RAM should be placed in slots 2 and 4, which are farthest from the CPU. Some motherboards require the first two sticks to go into those positions. Keep in mind that with newer boards—especially those using AM4 sockets and B550—initial setup might take 30 seconds to an hour. With DDR5 support, it’s not unusual for up to five minutes before the system boots and displays anything. The CPU needs time to adapt and recognize the memory, similar to a learning curve. Check the motherboard manual for LED indicators; likely just a standby light with no warnings. Occasionally, a displayport problem occurs, though it’s rare. Sometimes the video card struggles to connect via DisplayPort fast enough. If using an HDMI cable instead, ensure the video card is properly seated and that video cables connect to the card, not the motherboard’s I/O shield.