Heartbreaker3120

Okay, do you think my RAM is out-dated and needs an upgrade or not really

Does anyone see anything out of the ordinary (specifically towards the RAM) - It's annoying me when it says "Dual Channel Unknown" although I don't know if this negatively impacts my speeds or whatever. My RAM is in Slots 2 & 4 in my Motherboard.

I need a tool that will look up all lines from file1 in file2 (something like grep -f file1 file2), but I need it to be really fast for big files. I expect file1 to change for every lookup and to have even few million lines, file2 will stay the same, it might be updated from time to time and may contain over few billion lines (something around 150GB file size). file1 format: item file2 format: item:value I heard program with hashmap would be the fastest option, but apparently I'd need a lot of ram for it. So I'd like it to be done with NoSQL database like Cassandra Apache. I'd need a table with 2 rows: item and value and some program using API that would get all lines (file1) and look them all up in the table and if item match I'd like it to return item:value. I need it to be really fast so I'd need to know what speeds can I expect, is disk speeds the only important factor?