And measure that CMOS BIOS battery.
Also the power switch can be tested with the Ohm setting.
Beyond that it's not uncommon for the strain to cause the motherboard to fail. Be sure to compare that cost to a new laptop.
Bob
Hi all,
Recently replaced the fan in my Sony Vaio PCG-71211M as the old one was getting so noisy due to having loose bearings I think. In diagnosing the problems I took apart and put back together the laptop with very little problem however when i tried to start it up after fitting the new fan I got nothing. No fan noise, no lights, nothing. The green light on the power button comes on for a second and then just flashes periodically.
I have tried a hard reset to no avail, Could anyone think of anything which I may have overlooked, perhaps a switch or fitting inside which I knocked, I know this is clutching at straws but that is where I'm at!!
Thanks,
Matt

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