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my new computer wont boot up just black screen

So I've built new pc yesterday. The problem is that it won't boot. All fans are spinning,optical drive is bleeping too, though I cannot access it.On monitor it says "no video signal" just black screen after that i've checked everything
PSU: Cougar SL 500W
Case: Cougar ATX Solution
Motherboard: Gigabyte G1.Sniper A88X
CPU: AMD A10 5800K
CPU cooler: stock AMD cooler
GPU: Sapphire HD 7730 GDDR5
RAM: 4GB Kingston DDR3 1333
HDD: Seagate 500GB Hitachi 1TB
Fans:Cougar 6x 120mm & Cougar 1x 140mm
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More about computer wont boot black screen
  1. Best answer
  2. hey can a faulty memory run can make the computer not to boot just black screen?
  3. Yes it can.
  4. hey after it figured it out it work i finally make the computer working but after playing for 4 hours or 5 hrs my computer shutdown automatically and wont open it again, seems like the cougar SL 500w failed and i smell electric or just the same of a brand new PSU?
  5. It can happen but if it is power problems then it is between the PSU and motherboard. Try the paperclip test on the PSU http://www.overclock.net/t/96712/how-to-jump-start-a-power-supply-psu-test-a-power-supply-and-components
  6. oh thanks man but yes it malfunction good thing i bought it early and got for problems early i have to change it to Corsair VS550 so far so good
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