Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_55086 ( "Series ^" text, "Model" text, "CPU clock ( MHz )" text, "CPU cores" real, "TDP ( W )" text, "L2 cache (KiB)" text, "Radeon cores" real, "DDR3 speed" real )

### Question ###
Name the CPU clock for L2 cache of 2*512 and series ^ of e-series and DDR3 speed of 1066

### Accurate SQL ###

SELECT "CPU clock ( MHz )" FROM table_55086 WHERE "L2 cache (KiB)" = '2*512' AND "Series ^" = 'e-series' AND "DDR3 speed" = '1066'