|To Dipsy Girl|
But I don't think it will last more than a year. I had 2x1GB DDR2 PC6400 from SAMSUNG and 2x1GB DDR PC6400 from HYNIX, I paired them like you do. In the second year problem started to emerge, Blue Screen with message "IRQL or MEMORY MANAGEMENT" every 20 minutes or so. I did not really paid attention until it really broke my HDD.
Now I replace them with 2x2GB.