Comments on: Performing a printed circuit board (PCB) swap

By: rwinters

rwinters — Fri, 13 Nov 2009 17:28:28 +0000

Good question decubamd; If you only move the whole PCB from a good drive to your failed drive the chances of it working are low. Modern hard drives have what is called “Adaptives” located inside a flash ROM chip on the PCB called the EEPROM. Hitachis have another important chip called the NVRAM which contains even more valuable information.

This ROM information is unique to each drive, and while there is always a small chance that the adaptives may be “close enough” to bring a drive to full functionality; it is a rare occurence.

By: PCB & Headstack Replament… is it possible? « Jkim007’s Blog

PCB & Headstack Replament… is it possible? « Jkim007’s Blog — Sat, 12 Sep 2009 00:35:53 +0000

[...] http://www.hdd.ji2.com/blog/?p=17 [...]

By: decubamd

decubamd — Wed, 02 Sep 2009 02:06:54 +0000

simple question: why not replacing the whole PCB from the new drive to the bad one , only for recovery data reasons ?

Thanks ;
JDC