* This is what I could find for CPU's:
[link|https://cpu.userbenchmark.com/SpeedTest/242/IntelR-CoreTM2-Duo-CPU-----T6600----220GHz|Core2 Duo T6600|new_window=true]
[link|https://cpu.userbenchmark.com/SpeedTest/3645/IntelR-CoreTM2-Duo-CPU-----T9400----253GHz|Core2 Duo T9400|new_window=true]
[link|https://cpu.userbenchmark.com/SpeedTest/4254/IntelR-CoreTM2-Duo-CPU-----T9500----260GHz|Core2 Duo T9500|new_window=true]
* The Dell Inspiron 15 N5030 requires ***DDR3L*** and can go up to 2 x 4GB for a total of ***8GB***.
The "***L***" is for lower voltage as in 1.35V instead of 1.5V ''Note the 1.35V.''
DDR3-1600 • CL=11 • NON-ECC • SODIMM • 204-pin • ***1.35V*** • 2Rx8 • PC3-12800
* A SSD drive will speed things up more than anything else. Just make sure it is compatible.