text: is this a good laptop ram? (please see details)? *  description ddr2-533 512mb so-dimm for notebook     * interface sstl_18 200 pin dimm     * capacity 512mb     * data transfer rate 4.2gbps     * power consumption 1.8v     * dimensions 67.6 x 30 x 3.2 mm (2.66 x 1.18 x 0.13 in)     * other information ? jedec standard 1.8v ? 0.1v power supply     * max clock freq: 267mhz; 533mb/s/pin.     * cas latency : 4-4-4     * off-chip driver (ocd) impedance adjustment     * on die termination     * serial presence detect with eeprom     if not, please recommend some good laptop ram upgrades that would be under $50 wouldn't be bad but you have to check that its compatible with your laptop, can your laptop use ddr2? and at 533mh?