Diagnosis of power dissipated by hardware components
by fortea from LinuxQuestions.org on (#51ZF9)
Hello all,
I have a Dell Vostro 5471 and it's running Linux 5.4
One day a couple of months ago, it started giving errors at BIOS level saying that the power supply was not enough (not enough watts, I think).
Surprisingly, I found that with other power suppliers, the problem was still there.
Actually, the only stuff that is not working is the battery which is not charging but slowly discharges until 0%, even if the power supply is plugged-in; once the battery is discharged, the PC stays on and works as always (except that if the power supply is removed, it shut down, of course).
I found that with the 96W Mac power supplier through USB-c, it managed to have enough power and battery charges, but with a 90W [cheap] universal power supplier it doesn't work, whether from USB-c and from the usual power plug.
I suppose that some component (RAM? SDD? fan? screen?) is using too much power. I tried to open the PC and to reconnect everything. I have checked `powertop` and `stress` output but I do not see anything strange.
Is there some tool to check if some component is using too much power?
I have a Dell Vostro 5471 and it's running Linux 5.4
One day a couple of months ago, it started giving errors at BIOS level saying that the power supply was not enough (not enough watts, I think).
Surprisingly, I found that with other power suppliers, the problem was still there.
Actually, the only stuff that is not working is the battery which is not charging but slowly discharges until 0%, even if the power supply is plugged-in; once the battery is discharged, the PC stays on and works as always (except that if the power supply is removed, it shut down, of course).
I found that with the 96W Mac power supplier through USB-c, it managed to have enough power and battery charges, but with a 90W [cheap] universal power supplier it doesn't work, whether from USB-c and from the usual power plug.
I suppose that some component (RAM? SDD? fan? screen?) is using too much power. I tried to open the PC and to reconnect everything. I have checked `powertop` and `stress` output but I do not see anything strange.
Is there some tool to check if some component is using too much power?