Power Macintosh 6100
a.k.a. Performa 6100 series
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The 6100/60 was the entry-level Power Mac when Apple introduced the line in March 1994. Built into the Quadra 610 case, the 6100 contains a PDS which can be converted to a NuBus slot with an adapter. To save money, the 6100 uses RAM for video (up to 615 KB, depending on resolution and bit-depth), not separate VRAM. Thus, one way to improve performance is to add a video card, either Apple AV card or a third-party one. (This also makes it possible to run two monitors.) Another is to add a 1 MB level 2 cache, as noted on our benchmark page. More details at PowerMac 6100 Graphics Performance.
The 6100 was upgraded to 66 MHz in January 1995.
See our NuBus Video Card Guide for information on adding a NuBus video card, which will also require a NuBus adapter.
6100av. Includes video-in and video-out. Supports 19" and 21" monitors. Has 2 MB VRAM. (AV card can be added to any 6100 with a free PDS slot.)
6100 DOS compatible. Card includes a 66 MHz 486DX2 CPU, SVGA output, and a single SIMM slot supporting up to 32 MB RAM. DOS card can share RAM with Macintosh, which is slower, or use its own memory. (DOS Compatibility Card can be added to any 6100 with a free PDS slot.)
- 6100/60 introduced 1994.03.14; discontinued
6100/60av introduced 1994.03.14; discontinued 1994.09.12
6100/66 introduced 1995.01.03; discontinued 1995.10.14
6100/66 DOS Compatible introduced 1995.01.03; discontinued 1996.05.18
6100/66av introduced 1995/02/03; discontinued 1995/04/03
- requires System 7.1.2 through 9.1
- CPU: 60 or 66 MHz PPC 601
- bus: 30 or 33 MHz
6100/60: CPU 100, FPU 161, MacBench 5
1.8 (relative to Centris 650)
23.26, MacBench 2.0
3.13, Speedometer 4
6100/66: CPU 112, FPU,177, MacBench 5
3.40, Speedometer 4
more details on our benchmark page
- ROM: 4 MB
- RAM: 8 MB, expandable to 264 MB using matching pairs of 80ns or faster 72-pin SIMMs (Apple does not support 64 or 128 MB SIMMs, since they were released after the computer and Apple has not verified compatibility.)
- VRAM: none on motherboard, 2 MB on AV card
- internal supports thousands of colors at 640 x 480 and 256 colors at 832 x 624
- AV card supports millions of colors at 640 x 480 and 832 x 624, thousands of colors at 1024 x 768 and 1152 x 870
- motherboard video uses up to 600 KB of system memory
- A dead or low-voltage PRAM battery can temporarily kill off built-in video - see Macintosh Computers: Low Battery Can Cause No Video for more information.
- L2 cache: optional on 6100/60, 256 KB standard on 6100/66, supports 256 KB to 1 MB cache
- Hard drive: 160-250 MB @ 60 MHz, 350-500 MB @ 66 MHz
- CD-ROM: 2x standard
- microphone: standard 3.5mm minijack, compatible with line-level input including Apple's PlainTalk microphone
- ADB: 1 port for keyboard and mouse
- serial: 2 DIN-8 GeoPorts on back of computer
- SCSI: DB-25 connector on back of computer
- ethernet: AAUI connector on back of computer, requires AAUI adapter
- one PDS slot (NuBus adapter available)
- power: 200W
- PRAM battery: 3.6V half-AA
- height: 3.4 in
- width: 16.3 in
- depth: 15.6 in
- weight: 14.0 lb
- PRAM battery: 3.6V half-AA
- Gestalt ID: 75
Accelerators & Upgrades
- Guide to G3 Accelerators for NuBus Macs
- Guide to G4 Accelerators for NuBus Macs
- Chipping the Power Mac x100
- NewerRAM has 128 MB SIMMs for 6100, Applelinks, 1/11/2000
- AV card or third-party video card will improve performance
- MicroMac Speedy variable speed oscillator
- MC Price Breakers, 80 MHz clock chipper
- Output Enablers 80-82 MHz clock accelerator (76-80 MHz version for 6100 DOS Compatible)
- Griffin Mac-celerator (variable speed to 80/84 MHz for 60/66 MHz models, incl. fan), discontinued
- Crescendo (120/132 MHz 604 or 180/200 MHz 604e) from Sonnet Technologies, discontinued
- Crescendo/NuBus G3 (400/500 MHz G3) from Sonnet Technologies
- 210 MHz and 240 MHz MAXpower G3 from Newer Technology (210 MHz version reviewed on Macs Only!), discontinued
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- SETIonMac: Team 6100 joins Team Mac Observer, 2000.05.04. Team hopes to harness efforts of many Power Mac 6100s, perhaps the most popular Power Mac ever.
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- 72-pin SIMM memory pricing, ramseeker
- PowerMac 6100 Upgrade Guide, Steven Kan
- Setting Up a 6100, Dan Knight, Mac Musings, 1999.10.18. Was picking up some Power Mac 6100s for $200 each really such a good deal?
- Benchmark: Power Mac 6100, Low End Mac, 10/17/99.
- BRD's Power Mac 61XX FAQ
- Because the 6100 uses up to 640 KB of system memory for video (unless you're using an AV card or NuBus video card), you can really boost video and system performance with a 1 MB L2 cache.
- Should I Buy a Used 6100?, Mac Daniel, 1998.11.19
- How should I upgrade my 6100?, Mac Daniel, 1998.11.19
- Should I pump up my 6100 or buy an iMac?, Bare Feats, 1998.09.01
- Apple Specs: Power Mac 6100/60, 6100/60av, 6100/66, 6100/66av, 6100 DOS Compatible
- Mac Windows, a site for Mac users running Windows
- You cannot upgrade from Mac OS 9.0 to 9.1 using updaters on NuBus models. You muse use a full installation CD for OS 9.1.
- We're dead serious about recommending matching RAM when upgrading the 6100 - see Memoirs of an UberNewbie: Always crashing in the same car to learn what happens if you don't match SIMMs.
- Outside of California, Apple discontinued support and parts orders for this model on 1 January 2001. You may be able to find dealers with parts inventory either locally or on our parts and service list.
- Beware bogus 256K cache module AP2544-02 - it doesn't do anything on the 6100 or 7100.
- The fan filter for the 610 and other models that use the same case is inside the power supply. Sometimes a "bad" power supply can be repaired by clearing the dust out of the mesh screen near the fan.
- This case has poor air circulation, which can cause replacement hard drives or accelerators to overheat. If this happens, the first thing to try is removing the small horizontal insert on the back. If this fails, look into replacing the fan in the power supply (contact Newark Electronics at 1-800-463-9275 for information on their 25cfm fan) or moving the hard drive to the CD-ROM bay (assuming you don't have a CD-ROM player).
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