Question: Name the series ^ when the CPU clock is 1500 and the model is T-52R
SQL: SELECT "Series ^" FROM "2-11956457-1" WHERE "CPU clock ( MHz )" = '1500' AND "Model" = 'T-52R';

Question: Name the average DDR3 speed for model E-350
SQL: SELECT AVG("DDR3 speed") FROM "2-11956457-1" WHERE "Model" = 'E-350';

Question: Name the CPU clock for L2 cache of 2*512 and series ^ of E-Series and DDR3 speed of 1066
SQL: SELECT "CPU clock ( MHz )" FROM "2-11956457-1" WHERE "L2 cache (KiB)" = '2*512' AND "Series ^" = 'E-Series' AND "DDR3 speed" = 1066.0;