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New GPU installed but fan doesn't spin & there is no display

System Model: Studio XPS 8100
BIOS: Default System BIOS
Processor: Intel(R) Core(TM) i5 CPU 650 @ 3.20GHz (4 CPUs), ~3.2GHz
Memory: 8192MB RAM
Available OS Memory: 8120MB RAM
Page File: 10093MB used, 6143MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
PSU: 350 W

I replaced my gpu with Radeon HD 7790, got it put in.. But when I turn on the computer, there's no display and the fan isn't spinning. What could be the problem?
3 answers Last reply Best Answer
More about gpu installed fan spin display
  1. Best answer
    Did you plug in the power cable?
  2. Did you connect the power cable to the GPU? If so, you may need a better PSU.
  3. 350 W is not enough and probably has no 6-pin pcie connector...get at least 450W with pcie-e 6 pin..
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