Display going off

[Deathadder69]

My display goes off after starting the pc, sometimes after 5 mins and sometimes at the BIOS menu itself, and even during Windows startup repair. RAM and PSU are fine as I am using them on a different motherboard and they are working fine. Also when the display goes off, sound doesn't go off immediately, I can hear background music and then after around 5-10 seconds, sound also goes off, HDD led stops blinking afterwards. Sometimes, HDD goes off along with display. So is the culprit graphics card or motherboard or something else( The other motherboard which I tried, (Nvidia 630i) had onboard VGA and it worked fine. When I remove all the components and assemble again after some time, it works fine for some hours and it starts again. Last time it worked fine for 2 days. There is no overheating problem, system, graphics card and core temperatures are fine.

My specifications:
Motherboard: MSI P45 Neo-F (601-7519-010) no OC
RAM: 2X2GB Corsair DDR2
HDD: WD Caviar Green WS6400AACS, 640GB
PSU: Corsair VX450, 450W
GFX Card: ATI Radeon 4850, 512MB DDR3
Operating System: Windows 7
Processor: Intel E6750, 2.66Ghz

 

[Deathadder69]

already 24 hours and no replies...guys please help me out

 

[evilgenius134]

Try using the onboard video on your current system.

 

[Deathadder69]

there is no onboard VGA in MSI P45 neo F and unfortuanately I don't have any other graphics card