CHIHIRO DIMM FIRM UPDATES

hello

is there a modern way to do firm updates on Chihiro type 3?
i keep losing DIMM boards , over 20 corrupted, due to gd rom crashing half way through update
scsi cables , gd roms drives are old ancient hardware

need some modern update from gd rom to cf firm updates

i ahve the disch and chip
also dimm boards with error 14??
work ok in standard mode ,error if set upright mode?

error 21? tried various working cf cards and chip

i'm pretty sure the update loads into ram before it's flashed, so suspect your power or dimm modules.