PCB with mutiple ROMs

[Ihab]

Drive Model: TOSHIBA MG07ACA12TE
Drive Capacity: 10TB

Hello, i have ths broken PCB and a donor. I want to replace the ROM but im not sure which i have to change.. do you guys know which one i have to change? Thank you.

Attachments

[fzabkar]

I believe those other ROMs constitute nonvolatile cache for power loss data protection. I suspect that if you don't transfer all 4 ICs, there may be a finite risk of contaminating the patient's data with the donor's NVcache (if the NVcache is not empty).

[northwind]

What he said ^^^

[Ihab]

fzabkar, Tank you for your reply! I got the Solution. I replaced the yellow marked ROM and it worked fine.