Laptop blank screen flashing led lights - HP Support ...
2014-5-13 · Laptop blank screen flashing led lights. 05-13-2014 12:42 PM. The HP dv7 laptop blank/black screen with the continuously flashing CapsLk & Num Lock led lights is probably indicative of an overheated graphics processing unit (gpu) on the system/mother board. On the one that I am trying to repair it is an ATI gpu.
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