Apple Macintosh Quadra 650

Pictures

Notes

A trash can gave me a complete LC II system via a friend. This is why I'm using a Apple RGB 12" monitor. I got this box without accessories.
This Mac is slow, for exemple, it took arround 4-5 days to make build on it.
Mac are not recommend for Unix. The hardware interrupt clock is at a lower priority than the disk controler. Which means that in heavy disk use, OpenBSD will lose a lots of minutes each hour. (I have cronjob running 4 times an hour to sync the time.)
Yes, the built-in CD-ROM use a caddy.
I didn't have the proper screw driver to remove the PSU and hard-drive support structure. It would have exposed the whole motherboard.
As of 2010, the internal hard drive is all use for Macintosh System 7.6.1. I run OpenBSD/mac68k in diskless mode.
Also as of early 2010, memory was maxed to 136MB.

Specifications

CPU	33 MHz Motorola 68040 (with built-in FPU) 4 KB data + 4 KB code L1 cache
Memory	136 MB (max 136 MB [132 MB some system], 8 MB [4 MB on some system] on board + 4 x 4, 8, 16 or 32 MB 72pin SIMM)
Bus	1 PDS + 3 Nubus
Onboard Video	1 MB (max 1 MB with 2 x 256 KB VRAM) with 512 KB can do 16bit (512x384), 8bit (640x480, 800x600, 832x624), 4bit (1024x768, 1152x870) with 1 MB can do 16bit (512x384, 640x480, 800x600, 832x624), 8bit (1024x768, 1152x870) [it is recommended to run in black & white (1bit) mode under OpenBSD]
Disk Controller	onboard NCR 53C96 at 16MHz SCSI-2 narrow internal 50 pin male connector external Apple 25 pin DB female connector [all 25 ground connected to DB frame]
Case	1 x 3.5 inch Apple floppy drive 1 x 5.25 inch SCSI-2 50 pin narrow male connector 2x CD-ROM with caddy 1 x 3.5 half-height SCSI-2 50 pin male connector hard-drive
External Connectors	Power push button [this Mac fully support software power down and ADB power up] Apple DB 15 female video connector Apple DB 25 female SCSI-2 narrow connector [25 ground connected to DB frame] Apple AUI Ethernet port Serial Printer - mini-din 7 pin connector [not standard RS232] Serial Modem - mini-din 7 pin connector [not standard RS232] ADB port - mini-din 4 pin connector [for keyboards, mouse, etc.] ADB port - mini-din 4 pin connector [for keyboards, mouse, etc.] Audio out - 1/8 inch Microphone - 1/8 inch

Dmesg

OpenBSD 5.0 (ROOTNFS) #10: Fri Sep  2 13:54:58 EDT 2011
    root@mac.EINTR.net:/root/src/kernels/compile/ROOTNFS
Apple Macintosh Quadra 650, 68040 CPU+MMU+FPU, 4k on-chip physical I/D caches
real mem = 142606336 (136MB)
avail mem = 135516160 (129MB)
mainbus0 at root
obio0 at mainbus0
adb0 at obio0: II series
asc0 at obio0: Apple Sound Chip
macfb0 at obio0: DAFB, monitor sense 1
macfb0: 832x624, monochrome display
wsdisplay0 at macfb0 mux 1: console (std, vt100 emulation)
sn0 at obio0: integrated ethernet adapter, address 08:00:07:9c:f8:76
esp0 at obio0 (pseudo-DMA): NCR53C96, 16MHz
scsibus0 at esp0: 8 targets, initiator 7
sd0 at scsibus0 targ 2 lun 0: <IBM, DPES-31080 !t, S31R> SCSI2 0/direct fixed
sd0: 1034MB, 512 bytes/sector, 2118144 sectors
cd0 at scsibus0 targ 3 lun 0: <SONY, CD-ROM CDU-8003A, 1.9a> SCSI2 5/cdrom removable
zsc0 at obio0
zstty0 at zsc0 channel 0
zstty1 at zsc0 channel 1
nubus0 at mainbus0
adb0: 2 targets
akbd0 at adb0 addr 2: extended keyboard (ISO layout)
wskbd0 at akbd0: console keyboard, using wsdisplay0
ams0 at adb0 addr 3: 1-button, 100 dpi mouse
wsmouse0 at ams0 mux 0
vscsi0 at root
scsibus1 at vscsi0: 256 targets
softraid0 at root
scsibus2 at softraid0: 256 targets
can't figure root, hope your kernel is right
nfs_boot: using interface sn0, with revarp & bootparams
nfs_boot: client_addr=192.168.12.50
nfs_boot: server_addr=192.168.12.70 hostname=mac
root on cpaq:/exports/mac/root
swap on cpaq:/exports/mac/swap

Apple Macintosh Quadra 650

Pictures

Notes

Specifications

Dmesg

Links