Hitachi Travelstar HTS541060G9AT00 PCB faulty

[TerraNova]

I have a Hitachi Travelstar HTS541060G9AT00 with PCB faulty, is there any ROM on the pcb? some PCB has and some doesnt, any idea guys? Is the ROM located in "A" ? My pcb has empty "B".

Thank's in advance.

Attachments

[darkforce1]

A is NV ram. and that is what u needed.

DV

[Doomer]

ROM is inside CPU on this drive

[TerraNova]

Thanks guys, so i guess i have no other alternatives but to pull the CPU to a good donor pcb?

[Doomer]

Thanks guys, so i guess i have no other alternatives but to pull the CPU to a good donor pcb?

You could find similar PCB and try to swap NVRAM chip, probably it will work

[TerraNova]

hi guys, bad news the NVRAM from patient drive turned out to be dead , any solutions?

Thank you so much

[TerraNova]

Updates, i discovered that the NVRAM is corrupted, not physically faulty.

Dos anyone have any nvram for Hitachi Travelstar HTS541060G9AT00 any versions apart from what have been uploaded to files section.

I want to try to write all available NVRAM and see if it works, because i do not know the patient NVRAM version.

Thank you

[Doomer]

I want to try to write all available NVRAM and see if it works, because i do not know the patient NVRAM version.

It is wasting time - it will not work
Because SA location is unique for each drive and this SA location is desribed in NVRAM
I beleive it is only one commercial product on the market now to fix such problem - Salvation data HDD doctor (if I'm not wrong). This product is far from perfect but it could help.
You need to brute force SA location in NVRAM (with software) to reach SA and then you can get factory copy of original NVRAM from platters

[TerraNova]

Thanks for the info Doomer, I'd like to hear from Salvationdata about this problem.

[salvationlaura]

could you please tell us the PCBA version of the drive ?

Attachments

[salvationlaura]

the "A" is the NVRAM.

[TerraNova]

Hi SL, 320 0A21010 01

[harddrivespecialist]

You can match NVRAM by matching a code on a white sticker on a PCB.

You can write to NVRAM limited number of times, after that it could die, so don't abuse that NVRAM.

[TerraNova]

hi harddrivespecialist , which code? i have an identical P/N and MLC incl white sticker at the back of pcb 0A26798 DA1188A, still could not work.
Any ideas ? Thank you

[harddrivespecialist]

I had a drive with exactly the same issue.
Possibility of different nvram 20%.

Does it get ready or busy all the time?

[TerraNova]

i tried few nvram versions, some will spin some dont. When it spin just get BSY signal and would not id. It would not id because its different version relative to original SA as pointed by Doomer. Although Salvationdata claimed their hdd doctor for hitachi can recover the reserved SA in C zone which contains the original NVRAM, not sure i am talking to them now.

[harddrivespecialist]

see if Ace has couple in their database.

[TerraNova]

i have checked , none available in update box.

[harddrivespecialist]

There is a possibility of a scratch on a spot where SA copy is stored.
Hot swap could be helpful. I am not sure if you have already tried it.

[harddrivespecialist]

You can see what type of NVRAM is stored in SA if it becomes ready.