Computer starts freezing after installing new GPU

I recently installed a new GTX 780ti (updated the drivers as well) into my computer and it works amazingly, i can play a variety of graphics intense games fine but for some reason at random times when i'm starting up any new processes, like starting steam or just clicking on a link to a youtube video as examples, my computer will just start to slow down and freeze at times for 5 second periods or longer.

These are my computers specs:

CPU-Intel Core i7 3770
RAM-8.00 GB Dual-Channel
Motherboard-Gigabyte Technology Z68P-DS3
Graphics-GTX 780ti
Hard Drive-932GB Hitachi

I'm a kind of new to this so i'd really appreciate some help
16 answers Last reply Best Answer
More about computer starts freezing installing gpu
  1. ok give us some info about your psu!
  2. Sounds like an underpowered PSU to me.
  3. it's a 800w ATX Power Supply which should be good enough for most graphics cards shouldn't it?
  4. well what brand and model?
  5. Brand is cyberpower and model is PSAZ-CP800
  6. well to tell you the truth im not convinced about its quality. what amper can output on the 12v rail?
  7. Try getting a 650-750w 80+ bronze PSU.
  8. 30A max
  9. i have an 650w thermaltake 80 bronze plus that can output 52A on the 12v rail. i have the 3770k and a 7970 overclocked. aparently your is not enough to power your beast of a gpu. get a quality one seasonic, xfx, corsair...with at least 3years of warranty and 80 plus bronze. 650w shout be enough..
  10. Yeah, cheap PSUs are... not good. Only time I use one is when I have no other option.
  11. Best answer
    after a little search i found this (GeForce GTX 780ti - 42A and a 600W PSU minimum) and the link
  12. I thought it said 750 ti for some reason. You need a more powerful PSU, no doubt about it.
  13. thank you both very much this has been a lot of help
  14. Glad I could help.
  15. no problem! and always look for quality when purchasing psu's
  16. Definitely get 80+ bronze on every one you buy.
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