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HP Recommended
My hp pavilion dv4-2145dx will not boot up, the screen is dark, the fan is running and the
Hard drive works. The number lock and caps lock led's are blinking simultaniously 4 times, then there is a pause and then they blink 4 times again. Does anyone know how i can fix this problem?
1 REPLY 1
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Hi

 

4 blinks indicates Graphics Card or Graphics Controller issue. It is a hardware issue.

 

Troubleshooting LED Blink Codes or Beep Codes During Startup or Boot

 

 

In notebooks graphcis cards are mostly integrated..so motherboard replacement may be required.

 

If the system is under warranty then you can call tech support or otherwise you can check in HP Parts store for spare parts.

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