Name the Voltage Range which has a FSB Speed of 400 mhz, and a Clock Speed of 1 ghz?
CREATE TABLE "ultra_low_voltage_90_nm" (
  "model_number" text,
  "clock_speed" text,
  "l2_cache" text,
  "fsb_speed" text,
  "voltage_range" text,
  "socket" text
);
SELECT "voltage_range" FROM "ultra_low_voltage_90_nm" WHERE "fsb_speed"='400 mhz' AND "clock_speed"='1 ghz';