**[SOLVED] My PC restarts at a random moment during the game.**
**[SOLVED] My PC restarts at a random moment during the game.**
My PC works great for browsing, watching videos, but when I play games or during specific moments in the game, it restarts – like in Monster Hunter World’s cutscenes. The same happens with Watch Dogs 2 when things explode. My PC keeps restarting and many other games too! I need to fix this problem. My PC is a workstation HP Z400 with a Xeon W3680, an RX580, and 8GB of RAM. I’ve installed the latest GPU drivers, but it's still happening. Can you help me?
It’s not that easy unfortunately. HP used a non-standard PSU design with different mounting holes and a 24-pin connector that doesn’t match retail PSUs. However, swapping it out is possible. You'll need a short adapter cable for your Z400 and an alternative way to mount a retail PSU in the case – you can find a solution like this in the video. Any good quality 600W or better PSU should be sufficient; a 700W model, similar to the one shown, is a good choice. To ensure it’s the right fix, test the new PSU outside the case temporarily first.
Sounds like a power supply issue when the game(s) get to a very graphically demanding moment. Check next time if the card is at or near 100% usage just before the system crashes. Are you running the stock 475W power supply? If so, it's barely enough for most RX 580 and a 130W CPU.
But PC works fine, takes too much time, and I play 20 hours of Monster Hunter World. Why are the cutscenes like that, and the same with Watch Dogs 2? Spending too many hours playing also causes crashes, so the PC restarts.
“You mean his power supply is cutting out, causing him to restart unexpectedly?”
I see. It sounds like there might be a problem with the power supply itself. I understand your concern, but to help you further, could you tell me which one you're referring to when you say "the PSU is marginal"? And just so I’m clear, what question were you asking about the type of power supply you have?
It’s not that easy unfortunately. HP used a non-standard PSU design with different mounting holes and a 24-pin connector that doesn’t match retail PSUs. However, swapping is possible; you’ll need a short adapter cable for your Z400 and an alternative way to mount a retail PSU in the case—like this video demonstrates. Any good quality 600W or better PSU should suffice; a 700W unit like in the video is a solid choice. To ensure it's the right solution, test the new PSU outside the case temporarily first. If that doesn’t resolve the issue, you can return it for a refund.