Umax SuperMac C600 (Apus 3000)

The SuperMac C600 (Apus 3000 series in Europe and Asia) was Umax’s least expensive minitower. Introduced at 160 MHz in August 1996, Umax was selling 280 MHz models by mid-1997. The C600 was designed around a modified Tanzania motherboard with a daughter card for 3 PCI slots and 1 Comm-2 slot.

The C600 was the first clone to incorporate an inline cache, which Umax called CacheDoubler.

Tanzania-based computers will not boot with a dead 4.5V PRAM battery. Try replacing the battery before attempting to replace the power supply on a “dead” C600.

Umax was the only clone maker to acquire a Mac OS 8 license from Apple; the version 5 installer CDs shipped with Mac OS 8.

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Variants

C600/160 (Apus 3160). 160 MHz CPU, 40 MHz bus
C600/180 (Apus 3180). 180 MHz CPU, 36 MHz bus
C600/200 (Apus 3200). 200 MHz CPU, 40 MHz bus
C600/240 (Apus 3240). 240 MHz CPU, 40 MHz bus
C600/280. 280 MHz CPU, 40 MHz bus
C600x/240. 240 MHz CPU with CacheDoubler
C600x/280. 280 MHz CPU with CacheDoubler
C600e models include ethernet

Details

C600/160 and 180 introduced 1996.08.07, discontinued 1997.08.01
C600/200 introduced 1996.08.07, discontinued 1998.05.01
C600e/200 introduced 1997.05.09, discontinued 1998.05.01
C600/240 introduced 1996.10.21, discontinued 1997.10.01
C600LT/240 introduced 1997.08.04, discontinued 1998.08.31
C600x/240 and 280 introduced 1997.06.23, discontinued 1998.08.31
requires System 7.5.3 through 9.1
CPU: 160-280 MHz 603e
bus: 36-40 MHz
CPU performance, MacBench 5.0 (Beige G3/300 = 1000): 268 (180 MHz), 317 (240), 428 (240 w/CacheDoubler)
RAM: 16-32 MB (16 MB on motherboard), expandable to 144 MB using two 168-pin DIMMs and 70ns or faster 5 volt EDO or fast-page (FPM) DRAM, 1 MB of RAM dedicated to video
Video: RAM-based built-in video, 1 MB fixed, supports 16-bit color to 800 x 600 and 8-bit to 1024 x 768
Video: some models come with 2 MB video card (occupies PCI slot)
L2 cache: 256k, upgradable to 1 MB (1 MB with CacheDoubler)
hard drive: 1.2-4 GB IDE
CD-ROM: 8x-24x SCSI drive
Zip drive: optional
ADB: 1 port for keyboard and mouse
two miniDIN-8 GeoPorts on back of computer
DB-25 SCSI connector on back of computer with SCSI-2 support
PCI slots: 3
Comm Slot II
ethernet: optional, uses PCI slot
size (H x W x D): 16.0″ x 6.75″ x 15.5″ (406 x 171 x 392mm)
weight: 16 lb. (7.2 kg)