- Aug 3, 2013
- 3
- 0
- 10,510
I have a 5 years old computer with a Gigabyte P55-UD6 motherboard. Since i have built this machine 5 ago untill today it had one GeForce GTX 295 video card and an Enermax Pro82+ 650W PSU. Today i added another GTX 295 to the system and replaced the old PSU with a brand new Antec 1200W PSU. Since i have made that change something strange happens: Sometimes when i press the power switch it starts normally and sometimes it takes the pc about 2-3 seconds to start. After it starts everything works perfectly except the restart and sleep functions. The SLI works without any problem. The only problem occures when it reboots or sleeps. When i restart the machine it shuts down for 2-3 seconds (the fans stop spinning and the LEDs and drives turn off) then it restarts. When i try to wake up the machine from sleep mode the fans start spinning and the LEDs and drives turn on but the screen is black and the pc doesn't respond. Pressing the reset button won't help. I've tried to shut it down by long pressing the power switch button but after shutting it down and turning it on again the screen remained black. The only way to make it work again was to unplug the power cord, wait about 30 second and plug it back again.
Does anybody have any idea what may cause this problem? Thanks.
Does anybody have any idea what may cause this problem? Thanks.
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