Macintosh IIvx: Difference between revisions
Verify against Apple's Macintosh IIvx/IIvi/Performa 600 Service Source (hosted): DELETED 'Input Voltage 100V-240V AC' - that is the rating of the switched MONITOR OUTLET on the back; Apple prints the machine's own A/C line input as 100-120 VAC, a domestic-only figure, so a 220-240 V machine is a different supply and its primary-side parts are not interchangeable; DELETED '230 W maximum' (that is the Macintosh IIfx figure) and gave Apple's three real numbers - 200 W AC input, 3 A max at the ou... |
House rule: reword the remaining in-article correction narratives to describe the claim in circulation rather than the page's own edit history |
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The '''Macintosh IIvx''' is a desktop personal computer manufactured by Apple Computer, Inc. from October 1992 to October 1993.<ref>{{cite web |url=https://everymac.com/systems/apple/mac_ii/specs/mac_iivx.html |title=Macintosh IIvx Specs |publisher=EveryMac.com |access-date=2026-02-09}}</ref> The IIvx was the last of the | The '''Macintosh IIvx''' is a desktop personal computer manufactured by Apple Computer, Inc. from October 1992 to October 1993.<ref>{{cite web |url=https://everymac.com/systems/apple/mac_ii/specs/mac_iivx.html |title=Macintosh IIvx Specs |publisher=EveryMac.com |access-date=2026-02-09}}</ref> The IIvx was the last of the Macintosh II family and the first Macintosh to accommodate an internal CD-ROM drive.<ref>{{cite web |url=https://en.wikipedia.org/wiki/Macintosh_IIvx |title=Macintosh IIvx |publisher=Wikipedia |access-date=2026-02-09}}</ref> | ||
The IIvx was introduced alongside the slower [[Macintosh IIvi]]. Both models use the same high-profile desktop case. The consumer version, the | The IIvx was introduced alongside the slower [[Macintosh IIvi]]. Both models use the same high-profile desktop case. The consumer version, the Performa 600, was based on the same architecture.<ref>{{cite web |url=https://en.wikipedia.org/wiki/Macintosh_IIvx |title=Macintosh IIvx |publisher=Wikipedia |access-date=2026-02-09}}</ref> | ||
== Development History == | == Development History == | ||
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* '''FPU''': Motorola 68882 @ 32 MHz (included) | * '''FPU''': Motorola 68882 @ 32 MHz (included) | ||
The 32 MHz CPU runs on a 16 MHz bus, which limits performance. The IIvx is slightly slower than the older [[Macintosh IIci]] in many benchmarks despite the higher clock speed.<ref>{{cite web |url=https://en.wikipedia.org/wiki/Macintosh_IIvx |title=Macintosh IIvx |publisher=Wikipedia |access-date=2026-02-09}}</ref> Apple's specification for the serial ports is '''230.4 Kbaud maximum''', or 0.92 Mbit/s with an external clock source<ref name="ssiivx" />. A 57.6 kbit/s limit was | The 32 MHz CPU runs on a 16 MHz bus, which limits performance. The IIvx is slightly slower than the older [[Macintosh IIci]] in many benchmarks despite the higher clock speed.<ref>{{cite web |url=https://en.wikipedia.org/wiki/Macintosh_IIvx |title=Macintosh IIvx |publisher=Wikipedia |access-date=2026-02-09}}</ref> Apple's specification for the serial ports is '''230.4 Kbaud maximum''', or 0.92 Mbit/s with an external clock source<ref name="ssiivx" />. A 57.6 kbit/s limit was sometimes stated for it and is not Apple's figure; the MIDI difficulty on these machines is a clocking problem rather than a ceiling on the port's rate, and no source for a specific number has been found. | ||
The 32K L2 cache distinguishes the IIvx from the IIvi and Performa 600, which lack L2 cache. | The 32K L2 cache distinguishes the IIvx from the IIvi and Performa 600, which lack L2 cache. | ||
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Apple's Electrical specification for the IIvi, IIvx and Performa 600 is in '''three''' parts, and | Apple's Electrical specification for the IIvi, IIvx and Performa 600 is in '''three''' parts, and | ||
they are easy to conflate:<ref name="ssiivx">Apple Computer, ''Macintosh IIvx, Macintosh IIvi, Performa 600 Service Source'' ([[Macintosh IIvx Service Source]], [[:File:Macintosh_iivx.vi.perf_600.pdf]]), Specifications chapter and Additional Procedures → Battery Verification ("if the battery voltage is below 2.8 volts, replace the battery").</ref> | they are easy to conflate:<ref name="ssiivx">Apple Computer, ''Macintosh IIvx, Macintosh IIvi, Performa 600 Service Source'' ([[Macintosh IIvx/IIvi/Performa 600 Service Source]], [[:File:Macintosh_iivx.vi.perf_600.pdf]]), Specifications chapter and Additional Procedures → Battery Verification ("if the battery voltage is below 2.8 volts, replace the battery").</ref> | ||
* '''A/C line input: 100–120 VAC, 200 W''' | * '''A/C line input: 100–120 VAC, 200 W''' | ||
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* '''DC power: 112 W maximum''' | * '''DC power: 112 W maximum''' | ||
'''"Input voltage 100–240 V AC" | '''"Input voltage 100–240 V AC" circulates for this machine. That is the output receptacle's | ||
rating.''' Apple prints the machine's own line input as '''100–120 VAC''' — a domestic figure — so | rating.''' Apple prints the machine's own line input as '''100–120 VAC''' — a domestic figure — so | ||
a 220–240 V IIvx is a different supply, and its primary-side parts are not interchangeable with a | a 220–240 V IIvx is a different supply, and its primary-side parts are not interchangeable with a | ||
110 V one. Check which board is in front of you before ordering primary-side capacitors. | 110 V one. Check which board is in front of you before ordering primary-side capacitors. | ||
'''"230 W maximum" | '''"230 W maximum" also circulates for this machine and is not Apple's figure''' for any part of this | ||
machine: 200 W is the AC input rating and 112 W the DC output. 230 W is the '''Macintosh IIfx''' | machine: 200 W is the AC input rating and 112 W the DC output. 230 W is the '''Macintosh IIfx''' | ||
figure. | figure. | ||
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== Case Design == | == Case Design == | ||
The IIvx uses a high-profile desktop case shared with the [[Macintosh IIvi]], | The IIvx uses a high-profile desktop case shared with the [[Macintosh IIvi]], Performa 600, [[Macintosh Centris 650]], [[Macintosh Quadra 650]], and Power Macintosh 7100. The case design continued through the PowerPC era. The logic board can be swapped with a Centris/Quadra 650 board for an upgrade.<ref>{{cite web |url=https://en.wikipedia.org/wiki/Macintosh_IIvx |title=Macintosh IIvx |publisher=Wikipedia |access-date=2026-02-09}}</ref> | ||
* '''Dimensions''': 6.0" H × 13.0" W × 16.5" D (15.2 × 33 × 41.9 cm) | * '''Dimensions''': 6.0" H × 13.0" W × 16.5" D (15.2 × 33 × 41.9 cm) | ||
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* [[Macintosh IIvi]] | * [[Macintosh IIvi]] | ||
* | * Performa 600 | ||
* [[Macintosh Centris 650]] | * [[Macintosh Centris 650]] | ||
* [[Macintosh Quadra 650]] | * [[Macintosh Quadra 650]] | ||