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Display getting off with LED blinking

HI,
I have a AMD machine, with Nvidia Vga, i have two cards 9400GT and 560Ti.
It was working fine till last day, my computer gets off suddenly when i was working.
Later it cause me a lot of issue while working on PC.

Problems:
1) Facing system off but CPU lights are on. To confirm, i was ons skype call and suddenly PC screen goes black and call disconnected, but CPU lights on.

2) System gets shut down after sometime.

3) updated the GPU driver and then i can see the window logo screen and leter when it ask for password, at there i cannot see that after update. When it reaches there the screen goes black.

4) Same problem with stock display.

Temps are fine and tested performance test, it does not switch off, but it gets off in middle when i work.
3 answers Last reply Best Answer
More about display led blinking
  1. Best answer
    Power supply, motherboard or video card issue, may be RAM, VERY small chance it's the CPU. Try it with one video card at a time, if the system does the same thing, check the motherboard for any issues like popped capacitors. If that looks OK, test it with another power supply, maybe try with different RAM sticks.
  2. Okay, so i think it is because of RAM.
    When i use a single slot RAM then PC is working fine
    But when i use 2 RAM stick then it gets off but after using for some time.
    I have this RAM: 2 x corsair cmz4gx3m1a1600c9

    What should i do?
  3. sameersam said:
    Okay, so i think it is because of RAM.
    When i use a single slot RAM then PC is working fine
    But when i use 2 RAM stick then it gets off but after using for some time.
    I have this RAM: 2 x corsair cmz4gx3m1a1600c9

    What should i do?


    Did you check both sticks in the one slot? If yes, you have a bad RAM slot, so need to use the one, or replace the moherboard. If you only tried this with one RAM stick in the single slot, try the other as it could be a bad stick.
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