The System 100 was the first authorized Macintosh clone. It was built around a slightly modified Power Mac 8100 motherboard: Radius used a standard Mac DA-15 video port instead of the 8100’s 45-pin AV port.
The Radius Mac clones were probably the most heavy of the bunch, clad in thick metal to provide more RFI shielding than Apple’s Macs.
Variants
- 80 MHz, 48 MB RAM, 500 MB and 2 GB hard drives, FWB Hammer SCSI-2 card, Radius Thunder IV GX 1600 video card
- 110 MHz, 72 MB RAM, 2 GB hard drives, FWB Hammer SCSI-2 card, Radius Thunder IV GX 1600 video card
Details
- introduced 1995.03.27; discontinued 1996.01.01
- requires System 7.1 to 9.1, excluding 7.5.2
- CPU: 80 or 110 MHz PowerPC 601
- Bus: 40 or 37 MHz
- ROM: 4 MB
- RAM: 8 MB on motherboard, expandable to 264 MB using 8 SIMM sockets, supports 4, 8, 16, and 32 MB 72-pin 80ns SIMMs, SIMMs must be installed in matching pairs
- Video, onboard: 1 MB VRAM on motherboard
- Video port: Mac DA-15
- Video, NuBus: Radius Thunder IV GX 1600 accelerated video card supports 640 x 480, 832 x 624, 1024 x 768, 1152 x 870, 1360 x 1024, and 1600 x 1200 at 24-bits
- L2 cache: 256 KB, fixed
- Hard drive: 500 MB or 2 GB SCSI drive
- CD-ROM: 2x or 4x, requires CD-ROM Toolkit or other non-Apple drivers
- Internal and external SCSI-2
- ADB: 2 ports for keyboard and mouse
- two miniDIN-8 GeoPorts on back of computer
- DB-25 SCSI connector on back of computer with SCSI-1 support
- NuBus slots: 3 (one used for video, one for SCSI-2 card, so only 1 available)
- PDS slots: 1
- Ethernet: built-in AAUI connector
- size (HxWxD): unknown
- Weight: unknown
Accelerators & Upgrades
- none known
Online Resources
Troubleshooting
- You cannot upgrade from Mac OS 9.0 to 9.1 using updaters on NuBus models. You must use a full installation CD for OS 9.1.
- To boot from CD-ROM, start the computer while holding down the command, option, shift, and delete keys. This will bypass the internal hard disk drive and boot from the CD-ROM. (Due to a firmware change from Sony, the Sony CD drive in some systems are not bootable. Drives with ROM version 1.1a and 1.1b will not boot from CD Disk.)
- If your monitor isn’t syncing to video, hold the T key while restarting. Release the key when things sync properly.
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