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| [[File:D8a92d686b7e243615eb533e9f316045.jpg|thumb]] | | [[File:D8a92d686b7e243615eb533e9f316045.jpg|thumb]] |
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− | The Macintosh Quadra 950 is a [[Motorola 68040]] and [[NuBus]] based tower. This model was released in March 1992 and discontinued in October 1995. This model replaces the [[Maintosh Quadra 900]], and was the last model to feature 6 expansion slots until the [[Power Macintosh 9500]]. | + | The Macintosh Quadra 950 is a [[Motorola 68040]] and [[NuBus]] based tower. This model was released in March 1992 and discontinued in October 1995. This model replaces the [[Macintosh Quadra 900]], and was the last model to feature 6 expansion slots until the [[Power Macintosh 9500]]. |
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| =General Information= | | =General Information= |
| + | Announced in May 1992, the Quadra 950 was a "speed bump" of the [[Macintosh Quadra 900]]. The processor was upgraded from a 25 Mhz 68040 to a 33 Mhz. The Quadra 950 sold for $7,200. |
| + | |
| + | Codenames: Amazon, Zydeco. Introduced in May 1992 and discontinued in October 1995. Originally shipped with system software 7.0.1. |
| ===CPU=== | | ===CPU=== |
| The 950 uses a full [[Motorola 68040]] processor clocked at 33MHz. The [[Macintosh Quadra 840av]] is faster but the 950 was popular for server use. | | The 950 uses a full [[Motorola 68040]] processor clocked at 33MHz. The [[Macintosh Quadra 840av]] is faster but the 950 was popular for server use. |
| + | |
| + | MC68040, 32-bit architecture, 33-megahertz clock speed, Integral Paged Memory Management Unit (PMMU), Floating Point Unit (FPU), and 8-kilobyte cache architecture. |
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| + | ===Memory=== |
| + | Comes with 8 megabytes of RAM standard and 8 memory expansion slots for SIMMs (Single In-line Memory Modules). Expands to up to 64 megabytes of RAM by installing 4-megabyte SIMMs in the empty slots and replacing existing 1-megabyte RAM SIMMS with 4-megabyte RAM chips. |
| + | |
| + | ===Video=== |
| + | The video RAM (VRAM) in the Macintosh Quadra 950 uses 80 ns devices instead of the 100 ns devices used in the [[Macintosh Quadra 900]]. The video controller (DAFB) has been reprogrammed to take advantage of the faster VRAM, speeding up video performance by as much as 20%. That speed increase is in addition to the increase due to the 33 MHz processor speed. The cumulative increase in video performance can be as much as 50% overall. |
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| + | Like the [[Macintosh Quadra 900]], the Macintosh Quadra 950 comes with 1 MB of video RAM (VRAM) and sockets for expanding the VRAM to a total of 2 MB. The 1-MB VRAM configuration supports up to 24 bits per pixel on Apple’s 12-inch RGB monitor, 16 bits per pixel on the 13-inch and 16-inch RGB monitors, and 8 bits per pixel on 21-inch Apple monitors. The 2-MB VRAM configuration supports up to 24 bits per pixel on Apple’s 12-inch, 13-inch, and 16-inch RGB monitors and 16 bits per pixel on Apple’s 21-inch RGB monitor. The Macintosh Quadra 950 also supports 19-inch monitors with 1024 by 768 pixel displays. With 2 MB of VRAM, the Macintosh Quadra 950 supports up to 16 bits per pixel on such monitors. |
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| + | ===Expansion=== |
| + | 5 [[NuBus]], 1 PDS. |
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| + | ===PDS=== |
| + | The PDS attaches to the pins of the MC68040 without any buffers. For a PDS card to operate properly in the Macintosh Quadra 950 , the card must be capable of meeting the 33 MHz timing specifications of the MC68040. |
| + | |
| + | ===ROM=== |
| + | 1MB ROM. AppleTalk version 56.0.2. |
| + | |
| + | ===Physical Dimensions=== |
| + | Height: 18.6 in. (47.3 cm), Width: 8.9 in. (22.4 cm), Depth: 20.6 in. (52.3 cm), Weight: 36 lb. 12 oz. (16.7 kg). Weight varies based on installed components. |
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| =Notes= | | =Notes= |
| * The Quadra 950 is an ideal server tower for [[Apple UNIX]] (A/UX) due to the expansion options. | | * The Quadra 950 is an ideal server tower for [[Apple UNIX]] (A/UX) due to the expansion options. |
| + | |
| + | =Documentation= |
| + | * [[Macintosh Quadra 900/950/AWS 95 Service Source]] |
| + | * [[Macintosh Quadra 950 Developer Note]] |
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| =See Also= | | =See Also= |
| * [[Apple Computer]] | | * [[Apple Computer]] |
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| + | {| class="wikitable" style="background-color:#cbcefb;" |
| + | |+The Macintosh Quadra Series from [[Apple Computer]] |
| + | |- |
| + | |[[Macintosh Quadra 605]] -- [[Macintosh Quadra 610]] -- [[Macintosh Quadra 630]] -- [[Macintosh Quadra 650]] -- [[Macintosh Quadra 660av]] -- [[Macintosh Quadra 700]] -- [[Macintosh Quadra 800]] -- [[Macintosh Quadra 840av]] -- [[Macintosh Quadra 900]] -- [[Macintosh Quadra 950]] |
| + | |} |
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| [[Category:Apple]] | | [[Category:Apple]] |
| + | [[Category:68040]] |
| + | [[Category:1992]] |