Difference between revisions of "Extended Memory Interconnect"

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The Extended Memory Interconnect (acronym: XMI) was a bus introduced with the VAX 6000 series of DEC computers to cope with increased requirements, e.g bandwidth.
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The Extended Memory Interconnect (acronym: XMI) was a bus introduced with the [[VAX 6000 series]] of [[Digital Equipment Corporation|DEC]] computers to cope with increased requirements, e.g bandwidth.
  
The XMI bus started with the "+5V '''XMI-1'''" version which was developed to the "+3.3V '''XMI-2'''" version lateron.
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The XMI bus started with the "+5V '''XMI-1'''" version which was developed to the "+3.3V '''XMI-2'''" version later on.
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There was an upgrade kit option H9657-CU that takes a VAX 6000 Model 200, 300, or 400 system with an XMI-1 power system and upgrades it to a VAX 6000 Model 500 with an XMI-2 power system.
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The upgrade adds +3.3 volt power, an XMI-2 [[backplane]] preassembled with bus bars and cables, and an H7206-B power and logic unit.
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[http://www.vaxhaven.com/images/f/fc/EK-650EB-UP-002.pdf EK-650EB-UP-002 VAX 6000 XMI Conversion Manual] describes the upgrade procedure.  
  
 
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Revision as of 13:10, 17 July 2022

The Extended Memory Interconnect (acronym: XMI) was a bus introduced with the VAX 6000 series of DEC computers to cope with increased requirements, e.g bandwidth.

The XMI bus started with the "+5V XMI-1" version which was developed to the "+3.3V XMI-2" version later on.

There was an upgrade kit option H9657-CU that takes a VAX 6000 Model 200, 300, or 400 system with an XMI-1 power system and upgrades it to a VAX 6000 Model 500 with an XMI-2 power system.

The upgrade adds +3.3 volt power, an XMI-2 backplane preassembled with bus bars and cables, and an H7206-B power and logic unit.

EK-650EB-UP-002 VAX 6000 XMI Conversion Manual describes the upgrade procedure.