Power Macintosh 4400

Designed to be a lower cost Macintosh model to manufacture. The hardware is also very similar to the Motorola StarMax 3000 Macintosh clone. Known as the Power Macintosh 7220 in some markets outside of North America.

General Information

The 4400 included more generic styling and components similar to an x86 system which likely helped to reduce production cost.

CPU

The 4400 is based on the PowerPC 603e processor. In North America, the 4400 only shipped with a 200MHz CPU.

Memory

The Power Macintosh 4400 uses DRAM on dual in-line memory modules (DIMMs). Three slots allow for memory expansion up to 96 MB using 3.3 V unbuffered 8-byte extended data output (EDO) 168-pin DRAM DIMM cards. DRAM expansion slot 1 only supports single-bank DIMMs. DRAM expansion slots 2 and 3 support both single-bank and dual-bank DIMMs. No DRAM is soldered on the logic board.

Video

The logic board has a 120-pin video DIMM connector that allows the use of EDO RAM. The video controller supports the following for video memory:

• 1 or 2 MB of EDO RAM
• 1, 2, or 4 MB of SGRAM

Notes

• The system may not power on if the internal battery is dead. If the PSU seems dead, try replacing the internal battery first.

Troubleshooting

Power on system when internal battery is dead and front power button does nothing

If the system has been without AC power and the internal 4.5V alkaline battery pack is dead, the system will more than likely not turn on or show any signs of life when attempting to power on. You can get around this by keeping AC power applied, removing the computer lid, pushing the reset button on the board next to the logic board power connectors, and pushing the front power button again. It should power on, otherwise the PSU may be faulty.

Documents

• https://cdn.preterhuman.net/texts/computing/Apple_Service_PDF/PowerMac/powermac_4400.pdf - Service Source manual (troubleshooting, repair)

Gallery

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See Also

• Apple Computer