美国采购需求：PC电源、挖矿电源、全模组电源、矿机电源、服务器电源、1200W服务器电源

I hope this message finds you well. I'm reaching out regarding an issue I've encountered with my power supply, which has been functioning perfectly since July 2025. Recently, however, I've noticed it has started to produce crackling noises, which is concerning. It's been a reliable unit, so I'm eager to understand what might be causing this unexpected issue. Could you please provide any insights or recommendations for troubleshooting? I want to ensure it's safe to use and figure out if it might need repairs or replacements. Any guidance you can offer would be greatly appreciated, as this power supply is crucial for my operations. Looking forward to your prompt response so we can resolve this matter quickly.