Hardware Documentation - Machines DEC - VAX hardware reference

This is an (incomplete) list of Digital Equipment Corporation VAX computers and specifications. Compiled by abs@NetBSD.org with much help from port-vax@NetBSD.org users.

This is very much still a work in progress - many sections are little more than placeholders. Having said that, there should be enough here to prove useful.

Index

VAX 8000 series

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VAX 8200 (VAX 8000 series index)

Cpu:	KA820, V-11 (200ns), 8KB on chip cache	Vup:	0.9
Tps:	(?)	Busses:	1 VAXBI, optional UNIBUS
Interfaces:	Ethernet	Memory:	max 128MB ECC
Introduced:	January 1986	NetBSD:	Can run NetBSD
Last updated:	2003-07-17

VAX 8250 (VAX 8000 series index)

Cpu:	KA825, V-11 (160ns), 8KB on chip cache	Vup:	1.2
Tps:	10	Busses:	1 VAXBI, optional UNIBUS; max throughput 13.3MB/s
Interfaces:	Ethernet	Memory:	max 128MB ECC
NetBSD:	Can run NetBSD	Last updated:	2003-07-17
Notes:	KA820 processor in a BA32 case. BI (either 12 or 24 slot). Optional Unibus with DWBUA adapter. Same as VAX 8200 with additional CPU

VAX 8300 (VAX 8000 series index)

Cpu:	Dual KA820, V-11 (200ns), 8KB on chip cache	Vup:	1.7
Tps:	(?)	Busses:	1 VAXBI, optional UNIBUS
Interfaces:	Ethernet	Memory:	max 128MB ECC
Introduced:	January 1986	NetBSD:	Can run NetBSD
Last updated:	2003-07-17	Notes:	Dual processor version of VAX 8200

VAX 8350 (VAX 8000 series index)

Cpu:	KA825, V-11 (160ns), 8KB on chip cache	Vup:	2.3
Tps:	18	Busses:	1 VAXBI, optional UNIBUS
Interfaces:	Ethernet	Memory:	max 128MB ECC
Last updated:	2003-07-17	Notes:	Same as VAX 8300 with additional CPU

VAX 8500 (VAX 8000 series index)

Cpu:	KA85, <8800> (45ns), 64KB on chip cache	Vup:	3
Bus:	NMI processor/memory backplane with VAXBI I/O	Last updated:	2003-07-17
Notes:	VAX 8550 with microcode adjusted to slow it down. Later microcode update removed NOPs and upgraded to VAX 8530.

VAX 8530 (VAX 8000 series index)

Cpu:	KA85, <8800> (45ns), 64KB on chip cache	Vup:	4
Bus:	NMI processor/memory backplane with VAXBI I/O	Last updated:	2003-07-17
Notes:	VAX 8500 with updated microcode

VAX 8550 (VAX 8000 series index)

Cpu:	KA85, <8800> (45ns), 64KB on chip cache	Vup:	6
Tps:	47	Bus:	NMI processor/memory backplane with VAXBI I/O
Memory:	Maximum 320MB	Last updated:	2003-07-17
Notes:	Similar to VAX 8700, but in larger box and not upgradable to VAX 8800

VAX 8600 (VAX 8000 series index)

Alias:	VAX 11/790	Nickname:	Venus
Cpu:	KA86, <8600> (80ns), 16KB on chip cache	Vup:	4.2
Tps:	33
Bus:	2 SBIs with 15 nexus slots each. Each slot can take a UBA (UNIBUS adapter), MBA (MASSBUS Adapter), or CI.
Memory:	Maximum 256M (ECC)	Introduced:	1984
NetBSD:	Can run NetBSD	Last updated:	2003-07-17
Notes:	Slower version of the VAX 8650 (11/795). Developed in Marlboro, in the building identified as LCG Was originally intended to be an 11/790 but renamed before launch.

VAX 8650 (VAX 8000 series index)

Alias:	VAX 11/795	Nickname:	Morningstar
Cpu:	KA865, <8650> (55ns), 16KB on chip cache	Vup:	6.0
Tps:	47
Bus:	2 SBIs with 15 nexus slots each. Each slot can take a UBA (UNIBUS adapter), MBA (MASSBUS Adapter), or CI.
Memory:	Maximum 256MB (ECC)	NetBSD:	Can run NetBSD
Last updated:	2003-07-17
Notes:	Faster version of the VAX 8600 (11/790). The last VAX to be made bug-for-bug compatible with the VAX 11/780 /785. Was originally intended to be an 11/795 but renamed before launch.

VAX 8700 (VAX 8000 series index)

Nickname:	Nautilus	Cpu:	KA88, <8800> (45ns), 64KB on chip cache
Vup:	6	Tps:	47
Bus:	NMI processor/memory backplane with VAXBI I/O	Last updated:	2003-07-17
Notes:	PRO console. Single processor VAX 8800, can be upgraded to 8800 Replaced with redesigned VAX 8810.

VAX 8800 (VAX 8000 series index)

Nickname:	Nautilus	Cpu:	Dual KA88, <8800> (45ns), 64KB on chip cache
Vup:	12	Bus:	NMI processor/memory backplane with VAXBI I/O
Introduced:	January 1986	Last updated:	2003-07-17
Notes:	PRO console. Dual processor VAX 8700. Replaced with redesigned 8820.

VAX 8810 (VAX 8000 series index)

Cpu:	(?), <8800> (45ns), 64KB on chip cache	Vup:	6.0
Tps:	47	Bus:	PMI (updated NMI) processor/memory backplane with VAXBI I/O
Last updated:	2003-07-17
Notes:	MicroVAX II console. Basically an 8550 processor in a bigger box with space for additional processors to make it into an 8820 or 8840

VAX 8820 (VAX 8000 series index)

Cpu:	Dual (?), <8800> (45ns), 64KB on chip cache	Vup:	11.0
Bus:	PMI (updated NMI) processor/memory backplane with VAXBI I/O	Last updated:	2003-07-17
Notes:	Dual processor version of VAX 8810

VAX 8830 (VAX 8000 series index)

Cpu:	Triple (?), <8800> (45ns), 64KB on chip cache	Vup:	17.0
Bus:	PMI (updated NMI) processor/memory backplane with VAXBI I/O	Last updated:	2003-07-18
Notes:	Triple processor version of VAX 8810

VAX 8840 (VAX 8000 series index)

Cpu:	Quad (?), <8800> (45ns), 64KB on chip cache	Vup:	22.0
Bus:	PMI (updated NMI) processor/memory backplane with VAXBI I/O	Last updated:	2003-07-17
Notes:	Quad processor version of VAX 8810

VAX 8842 (VAX 8000 series index)

Cpu:	Four (?), <8800> (45ns), 64KB on chip cache	Vup:	22.0
Last updated:	2003-07-18	Notes:	System is two VAX 8820s connected together

VAX 8974 (VAX 8000 series index)

Cpu:	Four (?), <8800> (45ns), 64KB on chip cache	Vup:	24
Introduced:	January 1987	Last updated:	2003-07-18
Notes:	System is four VAX 8700s connected together

VAX 8978 (VAX 8000 series index)

Cpu:	Eight (?), <8800> (45ns), 64KB on chip cache	Vup:	48
Memory:	Maximum 4GB ECC	Introduced:	January 1987
Last updated:	2003-07-18	Notes:	System is eight VAX 8700s connected together

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