Macintosh SE FDHD
The Macintosh SE FDHD (FDHD = Floppy Disk High Density) is a compact Macintosh computer released on August 1, 1989.[1] It was the first compact monochrome Macintosh to include a high-density 1.44 MB "SuperDrive" floppy disk drive, replacing the 800K drive found in the original Macintosh SE.
 | |
| Macintosh SE FDHD | |
| Specifications | |
|---|---|
| Manufacturer | Apple Computer, Inc. |
| Type | All-in-one Personal Computer |
| Released | August 1, 1989 |
| Discontinued | October 15, 1990 |
| Intro price | US$3,700 |
| CPU | Motorola 68000 @ 8 MHz |
| Memory | 1 MB RAM (expandable to 4 MB) |
| Storage | 20 MB or 40 MB SCSI hard drive |
| Display | 9" monochrome CRT (512×342 pixels) |
| Sound | Mono 8-bit, 22 kHz |
| Dimensions | 13.6" H × 9.69" W × 10.9" D |
| Weight | 17.0 lbs (7.7 kg) |
| OS / Firmware | System 3.3 – 7.5.5 |
| Predecessor | Macintosh SE |
| Successor | Macintosh SE/30 |
| Model no. | M5011 |
The SE FDHD shares the same chassis and overall design as the standard SE but incorporates the updated disk drive and ROM to support high-density floppy disks.
Hardware Overview
editProcessor and Memory
editThe SE FDHD uses a Motorola 68000 processor running at 8 MHz with a 16-bit data path. It ships with 1 MB of RAM and can be expanded to 4 MB using four 30-pin SIMM slots. RAM must be installed in matching pairs.
Storage
editThe system includes a 1.44 MB SuperDrive floppy disk drive that can read and write both 800K and 1.44 MB disks. Internal hard drive options include 20 MB or 40 MB SCSI drives.
Display
editThe built-in 9" monochrome CRT displays a resolution of 512×342 pixels.
Expansion
editLike the standard SE, the FDHD features an SE PDS (Processor Direct Slot) for expansion cards such as accelerators or Ethernet adapters.
General Maintenance
editFor detailed maintenance practices including cleaning, PRAM battery management, connector corrosion prevention, and voltage adjustments, refer to the dedicated General Maintenance page.
Troubleshooting
editA comprehensive troubleshooting guide addressing no power, chime but no video, intermittent operation, Sad Mac errors, and floppy drive problems is available on the Troubleshooting page.
Capacitor Replacement Guide
editDetailed capacitor replacement guidelines can be found on the Capacitor Replacement Guide page.
See Also
editReferences
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