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**450NX  (?)            06/29/98:
Chips:
[82454NX] (PXB) [82453NX] (MUX) 
[82452NX] (RCG) [82451NX] (MIOC) 
[82371EB] (PIIX4E),                            
CPUs:          Single/Dual/Quad P-II Xeon/P-III Xeon
DRAM Types:    FPM EDO 2-way Interleave 4-way Interleave
Mem Rows:      8
DRAM Density:  16Mbit 64Mbit
Max Mem:       8GB
ECC/Parity:    Both
AGP speed:     N/A
Bus Speed:     100
PCI Clock/Bus: 1/3


**?????  (Profusion)    c:99...
**800 series...
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*Unresearched:...
*VIA...
**SL9151   80286 Page Interleave Memory Controller (16-25MHz)        ?
***Info:...
***Versions:...
***Features:...
**SL9250   80386SX Page Mode Memory Controller (16/20MHz 8MB)        ?...
**SL9251   80386SX Page Interleave Memory Controller         <04/13/90...
**SL9252   80386SX System and Memory Controller              <06/12/90...
**SL9350   80386DX Page Mode Memory Controller (16-25MHz 16MB)       ?...
**SL9351   80386DX Page Interleave Memory Controller (33MHz)         ?...
**SL9352   80386DX System and Memory Controller              <06/12/90...
**SLXXXX   Other chips...
**
**VT82C470     "Jupiter", Chip Set (w/o cache) 386 [no datasheet]    ?
**VT82C475     "Jupiter", Chip Set (w/cache) 386   [no datasheet]    ?
**VT82C486/2/3 "GMC chipset"            [no datasheet, some info]    ?...
**VT82C495/480 "Venus" Chip Set                    [no datasheet]    ?
**VT82C495/491 ? EISA Chip Set          [no datasheet, some info]  <93...
**VT82C496G    Pluto, Green PC 80486 PCI/VL/ISA System       <05/30/94
***Info:
The   VT82C496G  is   a  cost-effective   implementation  of   a  high
integration, high performance and  high energy efficient VL/ISA system
based  on the  80486SX/DX/DX2/DX4  or compatible  processor.  With  an
optional VT82C505  VL-PCI bridge,  the system can  be extended  to the
PCI/VL/ISA platform  that offers top rated PCI  performance and proven
PCI-2.0 compliance. In either  case, the VT82C496G interfaces directly
with the  VT82C406MV IXP (Integrated X-bus  Peripherals) that replaces
the  multiclock  generator, the  keyboard  controller  with PS2  mouse
support, the DS-1285  style real time clock with 128  byte of CMOS RAM
and certain amount of glue logic.  Less than ten TTLs are required for
a  complete  main  board  implementation  in  addition  to  the  chips
mentioned above.

In addition  to the VL bus  controller, cache and  DRAM controller and
ISA  bus  controller  with  the  82C206  peripherals  (DMA,  interrupt
controller  and timer),  the VT82C496G  also includes  a  flexible CPU
interface, a notebook class power  management unit and a local bus IDE
controller  to   meet  the   demand  of  the   state-of-art  computing
requirement. The function block  diagram of the VT82C496G is indicated
in Figure 1. The system block  diagram of a PCI/VL/ISA system based on
the VT82C496G is indicated in Figure 2. [see datasheet]

***Configurations:...
***Features...
**VT82C530MV   3.3V Pentium chipset [no datasheet, some info]<05/30/94...
**VT82C570M    Apollo Master, Green Pentium/P54C             <06/22/95...
**VT82C580VP   Apollo VP,  Pentium/M1/K5 PCI/ISA System      <02/15/96...
**VT82C580VPX  Apollo VPX, VPX/97, Pentium with 66/75MHz Bus <01/09/97...
**VT82C590     Apollo VP2, VP2/97, Single-Chip Pentium 66MHz <01/10/97...
**VT82C597/AT  Apollo VP3, Single-Chip for Pentium with AGP  <10/03/97...
**VT82C598MVP  Apollo MVP3,Single-Chip 66/75/83/100MHz & AGP <09/22/97...
**VT8501       Apollo MVP4,Single-Chip 66-100MHz & AGP       <11/04/98...
**VT82C680     Apollo P6, Pentium-Pro Chip Set               <08/30/96...
**Support chips:
**VT82C505     Pentium/486 VL to PCI Bridge                  <05/30/94...
**VT82C586/A/B PCI Integrated Peripheral Controller          <10/13/96...
**VT82C596/A   Mobile PCI Integrated Peripheral Controller   <11/05/97...
**VT82C686A/B  PCI Super-I/O Integrated Peripheral Ctrl.     <02/10/98...
**Later P-Pro/II/III/Celeron...
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