Hitachi HDP725025GLA380 - Missing ROM But NVRAM Is There

Well,
First i Bow Infront Of All The Great Computer Repair Vendors " For Heavens Sake Stop Data Recovery Experimentation If You Do Not Know What the Hell You Folks Are Doing " . Now Coming To The Point I Got One Hitachi - IBM Drive HDP725025GLA380 " HDx7250GL " Family .PCB No is 110 OA90026 01 or 220 OA90026 01 . Motor controller is OA52609 and main controller is OA55895 " But i am not 100% Sure this is Correct PCB " . This Board Has a NVRAM At U5 And ROM At U7 .U7 Is Missing .I Read The U5 NVRAM Using My Elnec Programmer And I Could Open NVRAM in PC 3000 And See The Following Code mu-code " GM2NC5CA " And FW Code " 2A13B9A9 " . Can Someone Help Me To Find Compatiable ROM if You Guys Can Match Mu-code And FW Ver Code In Your NVRAMS Please .Serial No of NVram Matches To HDA .P/N Of HDD is OA35399 And MLC is BA2831 .Serial No is RS01VHDA on Label .
 

Jared

Administrator
Staff member
I don't seem to have anything that's quite a match for that.

In a case like that, I'd probably just buy as close a donor as possible matching things like P/N, MLC, date, etc. and then hope that the PCB has the correct ROM and FW versions. Usually, that has worked for me. And, if you find that drive on DonorDrives.com you can request the resources and they'll provide it for you.
 
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