VAX 4000 series

VAX 4000

The VAX 4000 series was a series of VAX minicomputer systems. They were introduced in 1990 as replacements/upgrades for the MicroVAX 3100 series. They were built around the KA650 CPU, and later the KA655 CPU and the KA660 CPU, which all used the KA650 Main Memory System; and the KA670 CPU, which used the KA670 Main Memory System. Disk mass storage was supported using the DSSI bus, and general I/O used the QBUS.

The models in the series were:

• VAX 4000 Model 300 (1990)
• VAX 4000 Model 200 (1991)
• VAX 4000 Model 500 (1991)
• VAX 4000 Model 100 (1992)
• VAX 4000 Model 400 (1992)
• VAX 4000 Model 600 (1992)
• VAX 4000 Model 100A (1993)
• VAX 4000 Model 500A (1993)
• VAX 4000 Model 600A (1993)
• VAX 4000 Model 700A (1993)
• VAX 4000 Model 105A (1994)
• VAX 4000 Model 505A (1994)
• VAX 4000 Model 705A (1994)
• VAX 4000 Model 106A (1995)
• VAX 4000 Model 108 (1996)

The VAXserver 4000 series is a related category using the same hardware base; the VAXstation 4000 series apparently shares only the name.

External links

• VAX 4000 - documentation at Bitsavers
  • VAX 4000 Site Preparation (EK-387 AB-SP-002)
  • VAX 4000 Dual-Host Systems (EK-390AB-DH-002)
  • VAX 4000 Troubleshooting and Diagnostics (EK-386AA-TS-001)