I'm planning to upgrade my mum's PC. But i'm not sure what RAM i should get.. Currently her specs are.. Intel Pentium 4 Processor 534 Supporting Hyper Threading Technology 3.06GHz, 1MB L2 Cache. 533 MHz FSB 90nm 512MB PC4200 DDR2 Will this RAM be fine? http://sg.hardwarezone.com/priceguide/info.php?cid=307&id=11017 Since its DDR2 as well and have the 533 MHz but thats PC4300? Bla i dont know this.