weird reboot issue.. need help

cganesh75

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Oct 8, 2005
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I have a system with biostar nf3 motherboard, 3400+ s754 cpu and 6600GT agp video card along with a dvd-rw and seagate sata drive with winxp-home.
Everytime i reboot the machine from windows, system shuts down but then after that monitor has no signal.. fans and everything is running but no video. i have to manually push the reset button to restart it.. when i do this, system boot menu doesnt come up and ask if i need safe mode or whatever, just goes normally into windows. can anybody tell me whats going on?
 

cganesh75

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Oct 8, 2005
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power supply enermax noisetaker 465W.. about 2 yrs old. i have tried another PSU also, same result