Maybe the CPU or power supply is faulty.
Maybe the CPU or power supply is faulty.
Here’s a clearer version of your notes:
Before diving into the problem, let's review the setup:
- Ryzen 5 5600 processor
- Gigabyte Aorus B550M Pro (BIOS f15a)
- 16GB 3200MHz G-Skill Aegis
- ROG Strix 6700X
- Super Flower Leadex III argb 650W Gold
- Windows 11 Education Edition, 64-bit
- WD Black SN750 500GB
- Samsung 970 Pro Evo 500GB
I’ve noted the power supply model since it might be related to the issue. It was purchased in mid-2021, while other components were bought in mid-2022.
To summarize:
- The system powers on but doesn’t show any lights on the motherboard or connected devices.
- Fans spin once when turned on, but nothing else activates.
- No issues after rearranging cables or resetting FTPM.
- When I remove the CPU power cable, it still works briefly—prompting a reset of the FTPM.
- The problem reappears when I take the PC offline for about a month and accidentally left it running Minecraft.
Possible causes I’m considering:
1. For a short time, the system ran around 1.3V during a 4.6GHz CPU overclock.
2. After a BIOS update, I reduced the clock speed back to stock.
3. During the vacation, the PC was left on Minecraft for a while.
A video explaining what’s happening is available here. Please let me know if you need more details. Thanks!
Based on the observed signs and your prior attempts, it seems the issue likely lies with the CPU or RAM. Have you already tried starting the system with only one RAM stick installed, testing each individually? Unfortunately, this board lacks debug LEDs, making it harder to pinpoint the fault. This isn’t your responsibility—Gigabyte is handling that.
The board features several LEDs indicating activity. If none turn on, it likely points to a faulty board. During startup, you should observe the CPU LED briefly during POST followed by RAM LED illumination. A non-functional CPU LED suggests a defective CPU, while inactive or persistent RAM LEDs may indicate either a faulty stick/set or an incompatible CPU. It's also possible the sticks aren't compatible with your current board, though this seems unlikely given your previous use of similar hardware. This appears to be a replacement unit, and so far it hasn't functioned as expected since installation. Correct? I don’t assume your background, but here’s what to check and which LEDs to examine. I’m assuming you’ve already recognized this, so here’s the reference for verification. I’m noting that LEDs 6 and 8 correspond to RAM channels/sticks, while LED 7 is for the CPU itself.
I've experimented with different RAM configurations—like one stick, rearranging the sequence, and pairing two additional sticks—but nothing worked. Many high-end Ryzen models from the 5000 series are now significantly discounted because they're older, so I might consider upgrading if the processor fails.
Based on what I understand, there are no debug LEDs available. The only checks I’ve done are using a multimeter on the speaker pins and listening for conductance when powering up the PC, though I was getting quite frustrated by that point. No conductivity readings appeared when turning it on.