My computer recently started to have a problem where it will freeze once a day, when first turned on for the day after about half an hour to an hour. Not entirely sure what the cause could be and hoping if someone can help.
a flaky PSU can cause hard restarts/resets if one of the voltages is 'browning out'....
If you have two RAM sticks, you might try testing each one individually in single stick config, albeit at a performance hit because of running single channel