It might be Fast Startup causing the problem. Can you remove the battery & AC adapter, press & hold the power button for at least 5 seconds, then reconnect power and try again?
You can also try replacing memory or reseating it.
It might be Fast Startup causing the problem. Can you remove the battery & AC adapter, press & hold the power button for at least 5 seconds, then reconnect power and try again?
You can also try replacing memory or reseating it.