hds721050cla362 nvram?

[techboy]

hi and merry christmas to all the forum's followers,
i got the hitachi on the object, it doesn't seem to be supported from pc3000, this is the first time i have this drive, it doesn't click and comes ready with abr error and no id, i had a couple of hitachi different family with same syntoms and they were all pcb issue.

Guessing that the issue is the pcb, i was wondering if swapping what looks to me like nvram (works for some hitachi)on the board will fix the issue? I usually overwrite nvram o play the adjustment but in this case the fact is that the drive is unsupported.

if anyone had any similar experiences and solved it i would appreciate help.
thanks

i attached the board pic, with a circle on the chip i think could be sensitive.

Attachments

[fzabkar]

markings?

[techboy]

hi fzabkar, happy new year, yeah i marked it because i am not sure that the swap will work! anyway i ordered a donor, we'll see..

[hddguy]

He means can you describe any markings or signatures on the chips themselves that could help identify the type of flash chips and confirm it as EEPROM or not.

[techboy]

ops sorry i miserunderstood! on the 8 pin chip the mark is: 25fu206 - 9xIj

thanks hddguy

[hddguy]

ops sorry i miserunderstood! on the 8 pin chip the mark is: 25fu206 - 9xIj

thanks hddguy

Pretty sure this is programmable ROM

[techboy]

thanks!! thats a good news i am still waiting the donor I hope i din't misdiagnosed the drive!! thanks again hddguy i'll let you know as soon i get the parts.