Yes, that module is compatible with the ASUS motherboard. But you have two different modules with different speeds. What happens in this case is the faster module (the 1333MHz) will underclock to the slower module (the 1033MHz). You have not posted any other specifications for the Patriot module, like the voltage. The GSkill module's voltage is 1.5V, we don't know what the Patriot module is. If they are not, this could be what is causing the problem. If they are different go into the BIOS and set the voltage to that of the GSkill, this should resolve the problem of not working in that motherboard.
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