IBM Industrial 7552 "Gearbox"
27256 x2

Unknown FRUs
BIOS Revision '00' for 7552-140

'U6': 16F2289
'U25': 16F2288
"UER 3.0" - 
BIOS Revision '01'
08/28/1987

'U6': 16F1971
'U25': 16F1972
"UER 3.1"
BIOS Revision '02'
08/16/1988