Computer restarts randomly after installing new graphics card and power supply unit; sometimes won't post,monitor gets no sign

aritra696

Reputable
Sep 24, 2014
8
0
4,510
I had an system which i was using from December 2012,specs are as follow:

AMD PHENOM II X6 1090T 3.2 ghz(not black edition)
Asus M4A88T-M motherboard(on board 256 mb dedicated ati hd 4250 radeon gpu)
Zion Ram DDR3 1333MHZ 4GB
2TB seagate HDD
Iball entizer cabinet (with its stock psu)

Now few days back i installed a asus gtx 750ti 2gb ddr5(ph version) and a new corsair vs550 psu....it booted up normally untill i installed nvidia drivers on my hdd.......after that it started to get random reboots and i get a kernel-power error in event log each time it reboots,sometimes it won't even post properly.....memok light keeps blinking and all fans are running well but no display on monitor.......sometimes it reboots just after showing the boot screen sometimes on logon screen sometimes after running 1 hours sometimes run for 10-12 hours without any problem.......12v voltage is something odd,showing 11.729 on its rail......i don't know what to do?but whenever i get back to my old setup and login into safe mode all runs fine.......no crash nothing........so what to do??please help me.....
 

aritra696

Reputable
Sep 24, 2014
8
0
4,510
It is random......sometimes it does on boot screen.....sometimes on logon screen,sometimes run fine for 10-12 hours sometimes just after loggging in to desktop sometimes after 1 hour after logging in......
Thanks for so quick reply!! :)
 

aritra696

Reputable
Sep 24, 2014
8
0
4,510
Is that possible that graphics card is not compatiable with the power that my mobo delivers?and it damaged anything in mobo? :/ :/ i can't find any clue......please help.......(note: i changed the psu and tried to boot it with only one ram stick(actually 3 different ram sticks) but same thing is happening.......it is just restarting......
 

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