Computer Shuts Down

[Bucki]

UPDATE:

I attached a spare IDE HDD to the second IDE Connector/cable and again it does the same thing again. hmmmmmmmmmmm

+ It's not the RAM (memTEST shown no error)
+ SATA 2 (works on my pc, same problem even with IDE hdd drive)

I am lost

 

[Bucki]

dump!

 

[Frostmourne]

Can you try a different vista disk?

 

[daniel gibson]

Computer sleeps by itself if mouse or keyboard is not used for 1 min.

 

[richc46]

There may be a solution in this tutorial
http://www.vistax64.com/tutorials/63567-power-options-sleep-mode-problems.html

In addition this may assist you to solve the problem
http://www.vistax64.com/tutorials/198047-power-plan-restore-default-settings.html