If you think that there is hardware problem on HP computer you can run HP Diagnostics which will help you see where the potential problem is.
Step-by-step guide
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Reboot computer
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Press F2 in boot
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Then choose diagnostics what you want to run
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We recommend to run Fast System Test first, you can find this under System Tests
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If that not find any problem you can run Component Test
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If diagnostics found something error you should get failure id, please write that down and contact HP Support