Cleaning electronic components

Is it safe to emerge electronic components (mother boards, heatsinks, fans, graphics cards etc etc..) in Isopropyl alcohol to clean and recondition old electronics with caked on dust?
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First clean off all you can without any liquid, but after that it is fine to do a "rest cleanup" with isopropyl alcohol. What can help additionally is if the bath has an ultrasound shaker or whatever that is called.

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JohnBusiness Consultant (Owner)Commented:
It is also sometimes helpful to loosen greasy dust (which cakes) with a small brush and a dilute solution of dish or other like cleaning agent. Do this gently and do not use too much liquid.

Follow up then with alcohol (which helps remove the water).  

I have cleaned many items this way.

... Thinkpads_User
i have cleaned motherboards and all sorts of equipment in mild soapy water, brushed and cleaned it
then let it dry for a couple of days, or before a mild heater and fan
i never had any problems
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