Am Sonntag, 6. Mai 2018, 20:36:50 CEST schrieb Thomas George: Check the BIOS-Battery. It might be low of voltage and might thus have interferes with the bios, so that the "start" command was not correctly seen.
Check also the elkos, if they are blown thick, they are also a problem. If there is something causing too much drain (failure on a component on the mainboard), then the power supply switches off at once. Sometimes memory makes trouble. Good luck Hans > Box is between two tables but managed to remove side cover and with > mirror confirmed green light on motherboard. Unplugged power cord, green > light goes out, reconnected power, green light on and power switch > works, BIOS message Asus surge protection shut system down because of > unstable power supply.. > > My records show I assembled this box from components in 2008. Should I > be worried? Expected lifetimes of cpu, mb, power supply? > > On 05/06/2018 12:14 PM, Thomas George wrote: > > Selected shutdown from the window manager and the operating system > > turned off the computer as usual. Tried to restart the computer from > > the switch on the desktop box but it was totally dead. > > > > Where to look for the failure? CPU, motherboard, power supply or > > mechanical switch? > > > > I never thought before about how the operating system shuts down the > > computer. I know there are two wires from the power supply which the > > desktop switch connects to turn on the power supply. How does the > > operating system turn it off?
