Hello Guys i just need to check out a PSU Issue. My PC has been running on a Corsair TX850W PSU for the last few months, And this is a very Old PSU...This were part of a PC that were given to me from Stu & Craig Quite sometime ago.. Over the last two weeks i have been finding my PC shutting down within 20 - 30 seconds of the first boot up... Hit The power Switch then it is fine, The second Day it were a repeat, The Third day were a repeated the same procedure. This Morning i hit the power switch then it shut down within 5 - 10 seconds or so this time around.. Hit The Power Button again Nothing Happened. Tried this three times and noting. Switched the PSU off and disconnected the power line, Re-Inserted switched on... And it had powered up... I am 95% convinced it is the PSU named above is failing, So i have switched back to the Corsair 550W PSU (Can't Name it without removing it) but it is much Newer and seems to be running ok for the last 6 Hours... It is a 80+ PSU... I am running: Asus PRIME B450-PLUS Motherboard. Ryzen 7 3700X 3.6 GHZ overclocked too 4GHZ By Default. 32 GB (4 x 8Gb) 300MHZ Vengance RGB Corsair Force MP600 500GB M.2 PCIe Gen 4 NVMe SSD/Solid State. 1 WD Blue 3.5" Internal Hard Drive - 4 TB 1 4TB Seagate HDD 4 Case Fans. RGB Lighting strips. A Gigabyte GeForce 2070 super 8 GB (Windforce Edition) I have tried a couple of PSU Calculators that has recommended a 450 80+ corsair, But im not totally convinced... That would be enough. I just want to Know if the Corsair 550W is enough or just to a little safer to up the wattage a little.. EDIT: Added the CPU.