leon Posted June 19, 2009 Share Posted June 19, 2009 (edited) Some people say, that this is not good to change the boards, but I don't know, why exactly.Maybe it's because the firmware is recorded not only in the chips on the electronics board, but some part also on the platter in the so called Firmware Area.Firmware Area (or System Area) is a reserved space dedicated to hard drive's own needs, such as: storing SMART logs, defect reallocation tables, program code (overlays) and so on. Flash EEPROM chip contains only a little part of the Firmware; its primary role is to spin up the spindle and unpark heads so that the drive can read the rest of the firmware from surface. Firmware Area is inaccessible with generic ATA commands; it cannot be read or written with any software since the fact that the protocol is vendor-unique, and hard drive vendors do not disclose any information about their hard drive Firmware area structure or even about how to access it. Edited June 19, 2009 by leon Link to comment Share on other sites More sharing options...
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