PC turns on for a brief moment then shuts down


Thread Starter
Jul 13, 2020
I have been running into a problem with my PC for 2 days now. Whenever I try to torn it on, all the leds light up, but only for a brief moment, then the PC shuts down. I got it to turn on and run just fine after unplugging all the cables (usb, hdmi, display port and psu cable), then only plugging in the psu cable and turning it on. I haven't moved the PC recently and I haven't opened the case in a good while so I don't imagine anything came loose.
Please help!

Tech Support Guy System Info Utility version
OS Version: Microsoft Windows 10 Pro, 64 bit, Build 18362, Installed 20200121213437.000000+180
Processor: AMD Ryzen 5 1600 Six-Core Processor, AMD64 Family 23 Model 1 Stepping 1, CPU Count: 12
Total Physical RAM: 32 GB
Graphics Card: NVIDIA GeForce RTX 2080 Ti
Hard Drives: C: 465 GB (223 GB Free); D: 465 GB (98 GB Free); E: 1862 GB (595 GB Free);
Motherboard: Micro-Star International Co., Ltd. X370 GAMING M7 ACK (MS-7A35), ver 1.0, s/n H916600727
System: American Megatrends Inc., ver ALASKA - 1072009, s/n To be filled by O.E.M.
Antivirus: Windows Defender, Enabled and Updated


Jan 2, 2001
Well, open the case and give the system a good cleaning with a can of air. Once it is clean, inspect the heatsink fan mounting to be sure it is secure.
Remove your ram chips and blow out the slot or slots with the same can of air. Reinstall the ram; be sure it is fully seated. Now attempt to pw ON. If the system will not complete POST, the first part I would swap would be the pw supply. Note you do not have to fully install a test pw supply. You can simply connect atx, aux/cpu, and video pw. Hot the ON button and see if the system will POST.

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