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‎09-01-2017 01:07 PM

HP Recommended
Product: Touch smart 300
Operating System: Microsoft Windows 7 (64-bit)

My problem is the same as many others I have seen listed.  PC was working fine all these years, suddenly went to turn it on and loud fan noise, blank screen, pc  won't boot.  Have tried all fixes listed.  Power cord is fine, f10 will not start BIOS.  Took off back, cleaned fans, redid thermal paste on CPU/heat sink.  No sign of overheating, capacitors all look good, am assuming it is motherboard or hard drive??  How do I check those?  I was going to hook hard drive to another pic to check it, but can't find a cable to connect to the hard drive--it has a long connector with 7 pins, a gap, then 14 pins.

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