450 DX/2 (259-5148) Specifications Faxback Doc. # 2240 Processor................................................... 486 DX2, 50 MHz Math Coprocessor Supported..............................FPU already included Overdrive Processor Supported........................................... Yes FCC Class...................................................... B, UL Listed Wait States............................................................... 0 Built-In: VGA compatible video...................... supports all standard VGA, EGA CGA, and MDA graphics modes Floppy disk controller....................... can support 2 floppy drives (1) 1.44 MB Floppy installed SmartDrive connector........................... can support 2 hard drives Device Expansion......................... 1 open 3 1/2 inch half height bay 2 open 5 1/4 inch half height bays Number of Expansion Slots..................................... 2 half length 3 full length AT compatible 16-bit slots Memory: Base Memory............................................. 2 MB (40 MB max) Video Memory........................................... 512 KB (1 MB max) Cache Memory.................................. 8 KB, Upgradable to 256 KB Keyboard................................................... 101 Key Enhanced Standard Ports: VGA Monitor................................................. DB-15 female Serial (2)..................................................... DB-9 male Bidirectional Parallel....................................... DB-25 female Keyboard and Mouse.................................... (2) 6-pin Mini DIN Bundled Software..................................... MS-DOS 5.0 (2HD) disks Utilities and VGA Drivers (1HD) disk Microsoft Windows 3.1 (6HD) disk Microsoft Works for Windows 2.0a (4HD) disk If purchased after April 1, 1993 MS-DOS 6.0 (DM* 3HD) Utilities and VGA Drivers (1HD) disk Microsoft Windows 3.1 (DM* 6HD) Microsoft Works for Windows 2.0a (DM* 4HD) * DM = Disk Mastering - the software is on the hard drive and the user is prompted to make Master Program Disks. Power Requirements............................... 110 to 125 VAC, 60 Hz (US) (switch selectable) 220 to 240 VAC Power Supply Wattage.............................................. 145 Watts Heat Output.................................................... 256 BTU/hour 546 BTU/hour (max) Weight............................................................. 14.5 lbs Dimensions................................. 17.2 X 16.2 X 4.3 inches (LxWxH) Environment: Temperature Operating................................................. 50øF to 95øF Storage................................................. -40øF to 158øF Humidity Operating.................................. 20% to 80% (non-condensing) Storage.................................... 10% to 95% (non-condensing) Floppy Drive: 1.44 MB Diskette Drive (Sony Model MP-F17W-09) Unformatted Capacity............................................... 2.0MB Formatted Capacity................................................ 1.44MB Number of Tracks............................................. 80 per side Number of Heads........................................................ 2 Average Access Time................................................ 95 ms Track-to-Track Access Time.......................................... 3 ms Motor Starting Time................................. 500 ms (700 ms max.) Rotation Speed................................................... 300 rpm Media.................................................... 3 1/2" HD or SD NOTE: The 1.44MB diskette can read, write, and format standard-density (720KB) diskettes as well as high-density (1.44MB) diskettes. (smm 08/25/93)