GeForce GTX 550 Ti stopped working

Did you install the latest drivers from and did you connect a 6-pin connector from your power supply unit directly to your graphics card?
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  1. i recently purchased the GeForce GTX 550 Ti graphics card and installed it into my system but when i try to play a game all i get is a back screen then it reapers and says that it stopped working but started working again.
    this completely stops me from playing me games as it repeats this until my computer crashes
    i cannot download the new drivers of the website as when i do my computer blue screens on me...

    here are the specs:
    Operating System
    MS Windows 7 Home Premium 64-bit SP1
    Intel Pentium E5700 @ 3.00GHz 30 °C
    Wolfdale 45nm Technology
    8.00 GB Dual-Channel DDR3 @ 399MHz (6-6-6-15)
    BIOSTAR Group G41D3C (CPU 1) 28 °C
    Generic Non-PnP Monitor (1280x1024@60Hz)
    1536MB GeForce GTX 550 Ti (Undefined) 32 °C
    Hard Drives
    466GB Western Digital WDC WD5000AADS-00S9B0 ATA Device (SATA) 30 °C
    Optical Drives
    High Definition Audio Device
  2. i cannot download the latest drivers form the website as when they are installing my computer crashes and give me a blue screen and yes i did connect it directly to my graphics card
  3. What is your power supply unit (brand and model)?
  4. my PSU is a Core X stream and my model is: OCZ - CXS500W
    i must add i purchased the graphics card, PSU and some new RAM all at the same time so they are all new if that helps
  5. Could you list all of the power connectors that are connected to something from your power supply unit? You may have missed something :).
  6. uhmm is there any way you could tell me what needs to be connected as i am not the one who connected everything up on the PSU

    if it helps i have the ATX Case 450W 2720D Galaxy III case (disregard the PSU as that has been replaced)

    2 x Sharkoon Case Fans

    1 Sharkoon Silent Eagle 1000 Fan (120x120x25)

    using a Startech 12 inch TX3 Fan Power Splitter Cable to connect the fans

    sorry for the lack of information its the best i could do
  7. just rang the person that set it up this is what they said:
    2 sata
    one 4 pin for motherboard
    one 24 pin for motherboard
    one 6 pin pcie
  8. Yes that's all that has to be connected. Could you open up the case and verify that all of them are connected?

    Also, if everything is connected indeed, I'd suggest downloading memtest from and test your RAM with it. Make sure to wait for at least 4 passes.
  9. should the memtest be a iso?
  10. yes, you need to burn its contents to a CD or USB flash drive and then boot from it.
  11. i kinda jumped the gun on you and tried my old ram and my computer worked perfectly
    to make sure my ram was not loose, i put it back and got the same results
    but thanks for the help along the way
  12. I'm glad you found the issue. Make sure to contact the warranty for the new sticks.
  13. i only add try looking at the ram guild your mb vendor posts for ram that been tested in the mb.
  14. wait so the ram could be a defect?
  15. Didn't you find that out already? :lol: If you don't think they are, just run memtest and you'll confirm/deny it.
  16. what would i look for on memtest to confirm it?
  17. Look for no red, you'll know if it throws an error. :)
  18. sorry for the late reply

    i was looking over the information of my ram
    i came across this:
    8GB (2x4GB) DDR3 for AMD, Intel Dual processors and upcoming 2nd Generation Intel Core platforms

    would this still mean it would work?
  19. No, it would not. Did you test your memory?
  20. i never got round to doing it as my pc worked after replace the ram
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