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**Spelling errors/mistyped words
Yes, I  know there are  spelling errors,  and things are  mistyped. It
seems no matter  how hard I try  my fingers hit 't'  twice when typing
'compatible' rendering it 'compattible' numerous, (thousands actually)
times.  I  don't have the  time or the will  to check the  spelling of
everything. Basic spell checking has been peformed. Please let me know
if  there is  anything that  would lead  to incorrect  information, or
something  is so  mangled  that  it needs  revising.  But  if you  can
basically  understand  what was  intended,  just  cope with  it.  Just
cope:-)

BTW, "110" port is  an "I/O" port that has been OCRed  badly, as is an
"1/0" port.

**Info needed on:...
**A note on VESA support of 486 chipsets....
**Datasheets:...
*_IBM...
*ACC Micro...
*ALD...
*ALi...
**M1561/43/35D   Aladdin 7 ArtX    [no datasheet, some info]  11/08/99
***Notes:...
***Info & Features:
M1561 Overview

128-bit Super-Socket7  North Bridge for AMD-K6-III  with integrated 3D
and Video Highest-performance game playing in a single integrated chip

The M1561 integrates the following functionalities in a Unified Memory
Architecture PC:

o   3-D Graphics
o   2-D Windows Acceleration
o   VGA Display Controller
o   SDRAM Memory Controller
o   PCI Bus Interface

M1561  supports the  66/100/1XX MHz  Socket 7  Front Side  Bus.  It is
System Memory  Management (SMM)  and Advanced Configuration  and Power
Interface Specification (ACPI) compliant.

M1561 uses  66/100/1XX MHz SDRAM with LVTLL  input/output signals. The
chip supports up to four memory DIMMs.

Power supplies are 2.5V  for the core and 3.3V for most  of the I/O. A
5V  reference is  needed for  the  5V tolerant  PCI inputs.  Reference
voltages for ArtX and ArtX+ are  also needed.The part is packaged in a
35x35mm 492 ball Thermally Enhanced Ball Grid Array (T 2 BGA) package.

North Bridge Features
o   128-bit Data Streaming architecture for highest performance 
    SMA/UMA
o   PC99 compliant
o   100/66MHz CPU Front Side Bus, 1XXMHz ready
o   Standard PC-100/66 SDRAM (up to 1 GB) PC-1XX ready
o   33 MHz PCI 2.2 compliant I/O bus
o   ACPI power management
o   Compatible with single-chip ALi M1535D and M1543 South Bridges

Performance 3D Graphics by ArtX

o   First integrated North Bridge with hardware-accelerated geometry 
    transformation & lighting (T&L)
o   Setup engine
o   Delivers fastest real game performance
o   Revolutionary new parallel rendering architecture for state-of-
    the-art pixel fill rates
o   Industry-leading 8X Virtual AGPTM graphics performance and 
    functionality
o   Hardware features:
    - Accelerated floating point Geometry and texture coordinate
      transformation, clipping, perspective projection
    - Accelerated specular, diffuse, and ambient lighting
    - 3D points, lines, triangles, polygons
    - Perspective-correct trilinear-filtered MIP-mapped texture 
      mapping
    - Alpha blending
    - Exponential pixel fog
    - Depth, stencil buffering
    - Anti-aliasing
    - Framebuffer clear and copy

2D/Multimedia Features
o   30fps DVD playback with hardware acceleration (motion 
    compensation)
o   128-bit BitBLT engine, 256 raster operations
o   Full color RGBA, color expansion, color keying
o   YUV planar 4:2:0, 4:2:2 video overlay, video scaling and filtering

Display Controller
o   Up to 1600x1200 non-interlaced screen resolution
o   Hardware features:
    - Analog CRT monitor output
    - 32-bit full-color
    - Fully compliant VGA adapter
    - Downloadable RAMDAC, hardware cursor
o   VBE 3.0 support

Memory interface
o   128-bit PC100/PC66 SDRAM, PC-1XX Ready
o   Up to 2.1 Gbytes/second bandwidth

Drivers
o   Optimized driver for DirectX 7 with Direct3D, OpenGL ICD, HWMC 
o   and GDI acceleration on Windows 98 and Windows 2000
o   Dynamic memory allocation for texture
o   Drivers available for Windows 98, Windows 2000 and Windows NT 4.0

Packaging
o   492-BGA, 35x35mm

***Configurations:...
**M6117          386SX Single Chip PC                              <97...
**
**Support Chips:
**M1535/D        South Bridge                                        ?...
**
**May not exist:...
**Later Chipsets:...
**Other:...
*AMD . . . . . . . [no datasheets, some info]...
*Chips & Technologies...
*Contaq  . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82497/492   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94
***Notes:...
***Info:...
***Configurations:...
***Features:...
**82498/493   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**
**Later chipsets (basic spec):
**440 series:...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
**800 series...
*Headland/G2...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...