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So I have this potato computer in the living room for like 7 years and suddenly the computer turns on and off by itself today as shown in the video. I knew it was a hardware problem so I tried to move the memory into different slot as I thought it would be a memory slot issue but that didn't help. Another problem is when it turns on, the BSOD appears. It was fatal system error c000021a. Any suggestion on how to fix this or do I need to throw this computer out of window?

PCproblem.mp4

PCproblem .jpg

PCproblem2 .jpg

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PSU Nerd | PC Parts Flipper | Cable Management Guru

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Helios EVO (Main Desktop) Intel Core™ i9-10900KF | 32GB DDR4-3000 | GIGABYTE Z590 AORUS ELITE | GeForce RTX 3060 Ti | NZXT H510 | EVGA G5 650W

 

Delta (Laptop) | Galaxy S21 Ultra | Pacific Spirit XT (Server)

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Helios EVO (Main):

Intel Core™ i9-10900KF | 32GB G.Skill Ripjaws V / Team T-Force DDR4-3000 | GIGABYTE Z590 AORUS ELITE | MSI GAMING X GeForce RTX 3060 Ti 8GB GPU | NZXT H510 | EVGA G5 650W | MasterLiquid ML240L | 2x 2TB HDD | 256GB SX6000 Pro SSD | 3x Corsair SP120 RGB | Fractal Design Venturi HF-14

 

Pacific Spirit XT - Server

Intel Core™ i7-8700K (Won at LTX, signed by Dennis) | GIGABYTE Z370 AORUS GAMING 5 | 16GB Team Vulcan DDR4-3000 | Intel UrfpsgonHD 630 | Define C TG | Corsair CX450M

 

Delta - Laptop

ASUS TUF Dash F15 - Intel Core™ i7-11370H | 16GB DDR4 | RTX 3060 | 500GB NVMe SSD | 200W Brick | 65W USB-PD Charger

 


 

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