System startup issue

Unbranded / Unbranded
January 29, 2009 at 13:20:04
Specs: Windows XP, Intel Celeron/512Mb
A system starts up without hitting the on switch, the processor fan runs for about 7 seconds and then the system powers off! Have tried another PSU and switched out RAM but to no avail. Anyone any ideas?

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January 29, 2009 at 13:54:52
Does it continue this cycle of starting/stopping? If so I would suspect the switch since the startup command is initiated by momentary contact of the switch , and shutdown command is triggered by holding the switch in for about 7 seconds.

Goin' Fishin' (Some day)

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January 29, 2009 at 14:03:00
The auto power up might be due to a bios setting. That setting is 'Restore power after a power interruption'.

If this is a new build, the power off might be due to using too much thermal paste on the CPU/Heatsink.

FWIW to XP users: When you click on the 'Command Prompt' you are just causing the 'Command prompt' to be displayed. This prompt gives you access to NTVDM.EXE, the 'NT Virtual DOS Manager'.

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