I believe your power supply unit might be disconnecting, causing your computer to lose power.
I believe your power supply unit might be disconnecting, causing your computer to lose power.
Hi, I assembled my PC myself but only got the power supply attached. It came bundled with the case due to a deal, and everything was neatly organized for cables. I’m still unsure about the power supply itself—besides some tutorials I had to follow to put it together. Recently, the motherboard’s RGB stayed on after an upgrade to NVMe and an extra HDD. When I tried to turn it on, it wouldn’t work at first. After double-checking the connection, it worked fine. Now I’m trying to figure out why it keeps losing power during games or while working, especially in ranked online sessions or when building something. I want to fix this once and for all so it doesn’t happen again. I noticed the cable I used feels loose—just pushed it back a bit and everything functioned properly. I’m curious about what’s actually causing the issue and how to prevent it from happening next time. Also, what exactly is that cable? I think it might not be the one powering the motherboard.
It's a power supply unit. The other components in your build include the main board, connectors, and various sensors or modules depending on the project.
The highlighted connector resembles fans that use the Molex connector for power and shouldn't cause any problems. I've used those before. What are the remaining components in the build? The second photo displays a model number—“MPW-6001” indicates a Coolermaster Elite 600W v3.
It's the Elite 600W 230V - V3 from Cooler Master. The components include: motherboard (Asus Tuf gaming A520M plus II CPU), AMD Ryzen 5700G CPU cooler, Hyper 212 ARGB GPU, and a 10GB non-XT RAM setup. Front and rear fans are MasterBox K501L ARGB. The power supply is ELITE V3 PK600W. Storage consists of a 500GB and a 2TB SSD in M.2 slots. I'm hoping this clarifies the issue.
It succeeded once more, this time, it functioned properly when I released the cables (avoiding full insertion). I'm still unsure what was happening.
The cables might be unsecured—turn off the PC, remove the wires, and inspect each one. This also lets you sort through and rearrange them. Alternatively, the power supply unit could be faulty. CoolerMaster's Elite line offers budget models that often fall short. It’s not the first time brands have presented similar deals before.
It's been another occurrence today. I should note I made a disk clone earlier, so it might be related to software rather than hardware.
You're explaining a situation where the system is receiving too much power than the power supply can handle. It seems like the hardware is demanding more than the PSU is capable of delivering. This could be due to components being too powerful for the PSU, or the PSU itself being faulty and unable to provide the required output. We should check the PSU's wattage and the power needs of components like the CPU and GPU. This issue is not very common, but it might also happen if the PSU has multiple 12V rails and you're exceeding one of them. Diagnosing it without proper documentation is tough, so we'll explore other options first. It's worth noting that inexpensive or bundled PSUs are usually not a good value. A reliable PSU is essential for system stability, and replacing it would be a wise choice if possible. If you're unsure about the required size, we can suggest some user-friendly calculators or help with the math.
The PC appears to be failing due to power loss rather than software problems. A random shutdown of Windows suggests a software-related issue, while the power supply seems to be the main cause.