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<h1 id="main-title">Power Macintosh 7200: Maximum Color Depths</h1>
<div id="abstract">
 
<div id="intro-container"><div class="truncate"><div class="attr SYMPTOMS"><div class="attr TOPIC">The Power Macintosh 7200 series computers come with 1 MB of VRAM on the logic board, expandable to 2 MB or 4 MB. The 7200 has 3 VRAM DIMM slots. The article below describes the number of colors available based on the amount of VRAM installed.<BR></div></div> <!--  attr Symptom  --></div> <!--  truncate --></div> <!--  intro-container --><div class="clear"> </div>
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  <div class="attr SUMMARY">
The Power Macintosh 7200 series computers comes with 1 MB of VRAM on the main logic board. You can increase VRAM to 2 MB by installing one 1 MB DIMM in the first VRAM slot, or to 4 MB by filling all three VRAM slots with 1 MB DIMMS. A VRAM upgrade can be accomplished with third party 1 MB VRAM DIMMs. <BR>
<BR>
The Power Macintosh 7200 has a 64-bit data path to VRAM (with 2 MB or 4 MB of VRAM). It will support display resolutions of up to 1280x1024 pixels and 24-bit color (millions of colors) of up to 1024x768 pixel resolution.<BR>
<BR>
<B>IMPORTANT:</B> The VRAM DIMMs must be 112-pin fast-paged mode, with 70ns RAM access time or faster. Do not use 256K VRAM SIMMs.<BR>
<BR>
The following table defines the maximum color depths available for a given resolution and memory size. Lower color depths are supported down to 8 bit or 256 colors. This is the same information that is reproduced in the technical specification guide that comes with the computer.<BR>
<BR>
<B>NOTE:</B> The maximum visible number of colors is millions. In the past, Apple has also labeled millions as 24 bit color. On AV and Power Macintosh computers, 24 bit or 32 bit can be used interchangeably to mean support for millions of colors. In some literature, you may see 32 bit shown in place of 24 bit or millions.  Think of this as 24 plus 8: 24 bit for displaying millions of colors plus 8 bit for special uses, such as alpha channel support (transparency, masking, opaque and tranlucent information) and chroma key support.
<P><BR>
<TT>|--------------|-------|----------|-----------------------|-------------|<BR>
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| Maximum Color**/VRAM &nbsp;|Refresh rates|<BR>
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;|-------+-------+-------|----+--------|<BR>
| &nbsp; &nbsp;Monitor &nbsp; | &nbsp;VIS* |Resolution| &nbsp;1 MB | &nbsp;2 MB | &nbsp;4 MB |(Hz)| (kHz) &nbsp;|<BR>
|==============|=======|==========|=======|=======|=======|====|========|<BR>
| 12&quot; RGB &nbsp; &nbsp; &nbsp;| &nbsp;N/A &nbsp;| &nbsp;512x384 | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 60 | 24.48 &nbsp;|<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| 12&quot; Mono- &nbsp; &nbsp;| &nbsp;N/A &nbsp;| &nbsp;640x480 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 67 | 34.971 |<BR>
| &nbsp; chrome &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp;|<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| 13&quot; RGB &nbsp; &nbsp; &nbsp;| &nbsp;N/A &nbsp;| &nbsp;640x480 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 67 | 34.971 |<BR>
| &nbsp; Hi-Res &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp;|<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| 14&quot; RGB &nbsp; &nbsp; &nbsp;| 11.5&quot; | &nbsp;640x480 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 67 | 34.971 |</TT><BR>
<TT>| &nbsp; Hi-Res &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp;|<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| VESA &nbsp; &nbsp; &nbsp; &nbsp; | &nbsp;*** &nbsp;| &nbsp;640x480 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 60 | 31.505 |<BR>
| &nbsp; Standard &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp;800x600 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 60 | 37.921 |<BR>
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp;800x600 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 72 | 48.1 &nbsp; |<BR>
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp;800x600 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 75 | 46.9 &nbsp; |<BR>
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | 1024x768 | &nbsp;256 &nbsp;| thous | &nbsp;mil &nbsp;| 60 | 48.4 &nbsp; |<BR>
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | 1024x768 | &nbsp;256 &nbsp;| thous | &nbsp;mil &nbsp;| 72 | 60.0 &nbsp; |<BR>
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | 1024x768 | &nbsp;256 &nbsp;| thous | &nbsp;mil &nbsp;| 75 | 80.0 &nbsp; |<BR>
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; |1280x1024 | &nbsp;NA &nbsp; | &nbsp;256 &nbsp;| thous | 75 | 79.976 |<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| Full-page &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp;|<BR>
| &nbsp; Monochrome | &nbsp;N/A &nbsp;| &nbsp;640x870 | &nbsp;256 &nbsp;| &nbsp;256 &nbsp;| &nbsp;256 &nbsp;| 75 | 68.9 &nbsp; |<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|</TT><BR>
<TT>| Full-page &nbsp; &nbsp;| &nbsp;*** &nbsp;| &nbsp;640x870 | thous | thous | &nbsp;mil &nbsp;| 75 | 68.9 &nbsp; |<BR>
| &nbsp; RGB &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp;|<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| 14&quot; Audio- &nbsp; | 11.5&quot; | &nbsp;640x480 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 67 | 35 &nbsp; &nbsp; |<BR>
| &nbsp; Vision &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp;|<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| 16&quot; color &nbsp; &nbsp;| 14.8&quot; | &nbsp;832x624 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 75 | 49.670 |<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| 19&quot; color &nbsp; &nbsp;| &nbsp;*** &nbsp;| 1024x768 | &nbsp;256 &nbsp;| thous | &nbsp;mil &nbsp;| 75 | 60.060 |<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| Two-page &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp;|<BR>
| &nbsp; Monochrome | &nbsp;N/A &nbsp;| 1152x870 | &nbsp;256 &nbsp;| &nbsp;256 &nbsp;| &nbsp;256 &nbsp;| 75 | 68.476 |<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| Two-page &nbsp; &nbsp; | 11.5&quot; | 1152x870 | &nbsp;256 &nbsp;| thous | thous | 75 | 68.476 |</TT><BR>
<TT>| &nbsp; RGB &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp;|<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| Multiple &nbsp; &nbsp; | 13.3&quot; | &nbsp;640x480 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 67 | 34.971 |<BR>
| &nbsp; Scan 15 &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp;832x624 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 75 | 49.670 |<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| Multiple &nbsp; &nbsp; | 16.1&quot; | &nbsp;640x480 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 67 | 34.971 |<BR>
| &nbsp; Scan 17 &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp;832x624 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 75 | 49.670 |<BR>
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | 1024x768 | &nbsp;256 &nbsp;| thous | &nbsp;mil &nbsp;| 75 | 60.060 |<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| Multiple &nbsp; &nbsp; | 19.1&quot; | &nbsp;640x480 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 67 | 34.971 |<BR>
| &nbsp; Scan 20 &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp;832x624 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 75 | 49.670 |<BR>
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | 1024x768 | &nbsp;256 &nbsp;| thous | &nbsp;mil &nbsp;| 75 | 60.060 |<BR>
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | 1152x870 | &nbsp;256 &nbsp;| thous | thous | 75 | 68.476 |<BR>
| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; |1280x1024 | &nbsp;N/A &nbsp;| &nbsp;256 &nbsp;| thous | 75 | 79.964 |</TT><BR>
<TT>|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| 21&quot; Color &nbsp; &nbsp;| &nbsp;*** &nbsp;| 1152x870 | &nbsp;256 &nbsp;| thous | thous | 75 | 68.7 &nbsp; |<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| NTSC &nbsp; &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp;512x384 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 60 | 15.7 &nbsp; |<BR>
| &nbsp;(underscan) | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp;|<BR>
| NTSC &nbsp; &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp;640x480 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 60 | 15.7 &nbsp; |<BR>
| &nbsp;(overscan) &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp;|<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
| PAL &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp;640x480 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 50 | 15.625 |<BR>
| &nbsp;(underscan) | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp;|<BR>
| NTSC &nbsp; &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp;768x576 | thous | &nbsp;mil &nbsp;| &nbsp;mil &nbsp;| 50 | 15.625 |<BR>
| &nbsp;(overscan) &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp;|<BR>
|--------------|-------|----------|-------|-------|-------|----|--------|<BR>
 <BR>
 &nbsp; &nbsp;* Viewable Image Size<BR>
 &nbsp; ** 256=image depth of 8 bits (bpp), thousands=image depth of 16 bits</TT><BR>
<TT> &nbsp; &nbsp; &nbsp;(bpp), millions=image depth of 32 bits (bpp).<BR>
 &nbsp;*** Refer to the manual that came with your monitor to determine VIS.<BR>
 &nbsp;N/A not available</TT></div>
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<div class="mod-date">Published Date: Feb 19, 2012</div>
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