4825 SX  (250-5141/42)             Addendum             Faxback Doc. # 1689

120 MB HARD DRIVE OPTION

Please disregard the hard drive specifications in your user's guide and refer 
to the following specifications instead:

Unformatted Capacity.............................125,009,920 Bytes
Formatted Capacity (using MS-DOS 5.0)............124,588,032 Bytes
Number of Cylinders..............................872
Number of Heads..................................8
Head Landing Zone................................N
Number of Sectors per Track......................35
Tracks per Surface (actual-Zone 1, Zone 2).......970/379
Average Access Time..............................15ms
Track-to-track Access Time.......................6ms
Motor Starting Time..............................5 sec
Rotation Speed...................................3605 rpm
Head Parking.....................................Automatic

ENVIRONMENT

Temperature:

Operating........................................5 to 50'C
Non-operating....................................-40 to 60'

Humidity:

Operating........................................8 to 80% RH non-condensing
Maximum Wet Bulb.................................26'C
Non-operating....................................5 to 95% RH non-condensing
Maximum Wet Bulb.................................26'C