when i shutdown my pc , my pc has get shutdown but the power light in my cpu tower remain stay on

[s120020]

when i shutdown my pc , my pc has get shutdown but the power light in my cpu tower remain stay on, and i have to direct unplug the system code from the power board , so please help me what's the problem really it is?

Please help me, i will become very greatful to you.
please reply me by posting a reply
Thanks

 

[hang-the-9]

Could be a power supply or motherboard issue. Easiest thing to try, reset the BIOS (pull power from system, remove the CMOS battery on the motherboard for 15 seconds). If that does not fix things, try a new power supply. If that does not work either, a new motherboard. Or just live with the power light staying on.

 

[WyomingKnott]

Try shutting down in safe mode, to see if something is interfering. See this: http/answers.microsoft.com/en-us/windows/forum/windows_7-performance/windows-7-after-shutdown-will-not-power-off/4d03224f-022a-41e4-bd4f-7f4409f2b0fd .

A memory is tickling the back of my mind about there being a setting for this, in either Windows or in the BIOS. I'll try to remember.

EDIT: Here it is for XP, don't know about 7. What version of Windows are you running? http/www.pctools.com/guides/registry/detail/251/