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Quadra 605 Wiki
Macintosh Quadra 605
The Quadra 605 is an Apple Macintosh personal computer based on the Motorola 68LC040 CPU.
" or "
" it was released on October 21, 1993 as part of the Quadra series and discontinued on October 16, 1994.
With an elegant, minimalistic design the Quadra 605 is one of the few Macintosh models that does not share a case with another machine. The internal layout and components are identical to the Apple Macintosh Performa/LC 475 and 476.
Complete system specifications
Download operating systems compatible with the Quadra 605
Various upgrades and modifications to Quadra 605 hardware
Photographs of Quadra 605 hardware
No video on startup:
If you hear the startup chord but video never initializes, the logic board battery is probably dead.
Flip the power switch on and then quickly toggle the switch off and then on again. The system should then boot up normally.
Replace the logic board battery with a
3.6v 1200mAh 1/2AA lithium battery
Vertical lines, horizontal lines or snow on video
: Check cable connecting monitor to video port
: Reseat VRAM SIMMs
: Replace VRAM SIMMs
Eight-tone error chord at startup
Reseat RAM SIMM
Replace RAM SIMM
Quadra 605 Specifications flyer
Quadra 605 Service Manual
Quadra 605 Developer Notes
Apple catalog Fall 1993
We Love Macs
Low End Mac Swap
eBay Quadra 605 multi-search
M1821LL/A - Macintosh Quadra 605 with 4MB RAM, 512K VRAM, and internal 80MB hard disk drive
M1822LL/A - Macintosh Quadra 605 with 8MB RAM, 512K VRAM, and internal 160MB hard disk drive
M0517LL/A - VRAM Expansion Kit (two kits required for expansion to 1MB VRAM)
M1507LL/A - 4MB DRAM Expansion Kit
M1508LL/A - 8MB DRAM Expansion Kit
M2460Z/A - Apple Ethernet LC Twisted-Pair Card
M9060LL/A - Apple PlainTalk Microphone
System 7 Today forums
68k Macintosh Liberation Army forums
68k Macintosh Liberation Army Wiki
- software downloads
System 7 Today
Wikipedia page for Quadra 605
Technical specifications from Apple
Upgrading a Macintosh LC 475 / Quadra 605
Quadra 605 Obsessions
Jagshouse Quadra 605 / LC 475
Tombstone Mac" custom Quadra 605 case
also featured in
help on how to format text
Turn off "Getting Started"