Added some info about the N2 hardware, including China region (theyre mostly the same as asia/japan units apart from the heatsink fan being attached to a bracket that fixes onto the PSU instead of on the heatsink itself). China region is `5` on the HDD sticker. Added info about all regions RAM configuration (I have an export and china N2 that both use 1x1GB). Added drive model numbers (Although export only ever used WD, seems that other regions used a mixture of drives (However it seems that WD was more popular in US and china while Seagate was more popular in japan and rest of asia).
