(There's no video for All Macintosh Roms (68K + PPC) yet. Please contribute to MR and add a video now!)
- Released in 1999, successor to the original PowerMac G3, 300-450 MHz, 64 or 128 MB of RAM, 6 or 12 GB HDD Power Macintosh G3 Blue and White troubleshooting, repair, and service manuals.
- This Power Macintosh G3 desktop was bought from university surplus for $15. It features a 266 MHz G3 Processor, 256MB RAM, 30 GB hard disk drive and Zip 100 drive. It boots into Mac OS X Server 1.2 (Rhapsody 5.6). Featured with it is the Apple Multiple Scan 720 17” monitor.
- Apple's DIY Manuals for Power Mac G5. Apple's DIY Manuals for iMac. Mac Classic Internal Power pinout Portables. Ifixit.com has lots of very well-documented repair guides for Mac PowerBooks, iBooks, and MacBooks, no fee or registration required. These are step-by-step instructions with photographs, very well-written and easy to follow.
This is an archive containing all of the most popular Macintosh models ROM files for emulation purposes, ranging from the first 64K ROM from the Mac 128K to the 4MB ROM files from the Bandai Pippin or PowerMac G3, listed below in ROM size, then by release date from oldest to newest.
You can refer to this awesome Macintosh models timeline on Wikipedia for old world vs new world ROMS.
The first download contains these Old World Macintosh ROM files:
--- 68K ---
1984-01 - 28BA61CE - Macintosh 128.ROM
--- 128K ---
1986-01 - 4D1EEEE1 - MacPlus v1.ROM
--- 256K ---
1987-03 - 97851DB6 - MacII (800k v1).ROM
--- 512K ---
1989-09 - 368CADFE - Mac IIci.ROM
--- 1MB ---
1991-10 - 420DBFF3 - Quadra 700&900 & PB140&170.ROM
--- 2MB --- Download pivot 4 for mac.
1994-05 - B6909089 - PowerBook 520 520c 540 540c.ROM
--- 4MB ---
1994-03 - 9FEB69B3 - Power Mac 6100 & 7100 & 8100.ROM
The second download contains these New World Mac ROMS:
1998-07-21 - Mac OS ROM 1.1.rom
Old_World_Mac_Roms.zip(47.01 MiB / 49.3 MB)
Old World Mac Roms / Zipped
32871 / 2016-08-11 / b860d5beddf0ace50119b0ec030019e4f77d85bf / /
New_World_Mac_Roms.zip(36.17 MiB / 37.92 MB)
New World Mac Roms / Zipped
15135 / 2016-08-11 / 3328eefba7834b63163ccc9e19a16213a1525a82 / /
4400.zip(1.83 MiB / 1.92 MB)
PowerMac 4400 ROM / Zipped
1116 / 2018-09-01 / 8d635ec6b1f63130fad88bcb31200e8fcc57218c / /
5500.zip(1.91 MiB / 2 MB)
PowerMac 5500 ROM / Zipped
1685 / 2018-09-01 / a37a2cac404ab6f08f7a223c97b2b20b8a93af4a / /
Architecture: 68K and PPC (mixed)
Emulating this? It should run fine under: Mini vMac
Apple Power Macintosh G3 233 Desktop Specs. Identifiers: Power Mac G3 DT - M6141LL/A - N/A. M3979 - None All Power Macintosh G3 Models All 1997 Models Dynamically Compare This Mac to Others. Distribute This Page: Bookmark & Share Download: PDF Manual The Apple Power Macintosh G3/233 Desktop, based on the compact Gossamer architecture, features a 233 MHz PowerPC 750 (G3. Owners of iPhone, iPad, iPod, Mac, or Apple TV products may obtain service and parts from Apple service providers, including Apple Retail Stores and Independent Repair Providers, from the date the product model was last supplied by Apple for distribution—or longer, subject to availability of inventory, or as required by law. Apple discontinues hardware service for certain technologically.
One of the last 'classic' Power Macintosh computers, the desktop Power Mac G3 codenamed Gossamer was packed with features. In ith base configuration, it has PowerPC G3 233 or 266Mhz CPU, DIMM expandable RAM and both IDE and SCSI controllers. In its best option there was 300MHz CPU, more RAM, advanced multimedia card (instead of simple sound card), more VRAM and DVD drive. Some units had also SCSI RAID compatibility. Like in many Macs, early units have ROM slots, it's a short DIMM module.
|CPU:||PowerPC G3 266MHz|
|RAM Type:||3 slots of 168-pin DIMM|
|Hard disk:||6GB IDE, 3.5' SL|
|Floppy drives:||1 1.4M 3.5'|
|Other drives:||24x CD-ROM|
|Graphics:||ATI 3D Rage|
|Display:||External, 15-pin connector|
|Dedicated OS:||Mac System 8|
|Maximum OS:||Mac System 10.2.8|
|Expansions:|| - ADB.|
- 3 DIMMs for RAM Expansion
- ROM DIMM slot (early models)
- Processor in socket
- 3 PCI slots
- Internal SCSI and IDE connectors.
- Multimedia expansion slot.
- Video memory SODIMM slot
Peripherals in collection:
|Connectors:|| - External SCSI|
- Ethernet network
- 2 serial (RS-422) ports for printer and modem
- 15-pin video connector
- ADB connector for keyboard and mouse
- Speaker output
- Microphone input
I got my unit from the same recycling as Power Mac 7300 and it comes from the same editorial. It's in good condition, maybe except power switch whose springs were broken. It's not a critical failure, but it makes power switch act much quicker than with good springs.
Power Mac G3 Aio
Overclocking is quite simple, as it requires only jumper manipulation. Remember that this not only voids warranty but may prevent all service procedures of the unit! So if you overclocked and have bad blocks - it's your fault. If you have crack on power switch - it's your fault. If big Godzilla jumps from the unit - it's your fault.
Near the battery, there's a 9-jumper block J16 with sticker 'Warranty void if removed'. These control CPU bus frequency and multiplier. Just configure it according to the table. Usually one step is enough, so 266MHz units may run quite well at 300MHz without changing bus clock, they sometimes suffer small overheating. Changing bus clock should be taken as last resort, as it clocks all components too.
Another component which may slow the computer down is the backside cache, which always runs at half of CPU speed. If you overclock 266MHz to 300MHz, the backside cache will overclock from 133 to 150MHz. If it's made of poor chips, it may make system unstable. Finally, overclocking from 266 to 300MHz gives about 10-15% increase in performance.