Power problems on your graphics card with an AMD Radeon R9 390 leading to system shutdown during game load.
Power problems on your graphics card with an AMD Radeon R9 390 leading to system shutdown during game load.
Hello, this situation is quite intriguing. My graphics card tends to shut down immediately when fully loaded by certain applications, like video games, until I significantly reduce its clock speed. I've put together a mix of vintage and modern components for my son's PC: older parts include an AMD Phenom II Dual Core 3GHz or FX6350 with liquid cooling, while the new components are a GameMax Black Diamond ARGB mid-tower case, JUSTOP 700w power supply, and ASUS SABRETOOTH motherboard. I was expecting the power supply to be rated higher than the 39 390 model (around 275 watts, ~23 amps on 12V). However, running the GPU at full speed causes an instant cut-off, even though temperatures are within normal ranges and no issues occurred when keeping the GPU at 600Mhz. I'm concerned about the power supply's reliability and wonder if I've overspent on it. Would you suggest alternatives or additional tests before purchasing another part? Also, could you recommend using a different CPU, like an older Phenom II, which still works and can be overclocked to 3.25 GHz? Thanks for your advice.
It seems the power supply might be failing. The system appears to be shutting down unexpectedly, possibly due to an issue with the PSU.
The more I consider this, the clearer it becomes that the power supply unit is the issue. The 12-volt amp rating mentioned seems like a theoretical figure; when you sum up various connections—SATA/MOLEX, 8-pin CPU, and 6-pin graphics—you arrive at a total, but in practice it’s likely divided among different connector types. The PSU contains one 8-pin CPU and one 6/8-pin GPU, while the system requires another dedicated 6/8-pin GPU. I have an adapter that converted MOLEX power to 6/8 pins, which worked for a previous 1000W model. However, this particular PSU probably won’t supply the required amperage through its MOLEX cables. That’s what I’m leaning toward at the moment. Thanks for your input!
The GPU performs well with reduced power levels, which makes me focus more on the PSU. Could end up swapping it out or creating a more advanced setup just for fun... Why do I tend to collect outdated tech so much? Thanks for the feedback!
For those who might want to know: I'm taking back the PSU referenced here. I've placed this order (photo included) and will follow up once I have the outcome. It includes the specialized modular connectors needed for the GPU's 6 and 8 pin power requirements.