Difference between revisions of "MicroVAX 3500/3600"

From Computer History Wiki
Jump to: navigation, search
m (No MicroVAX III)
(DEC docs conflict on cabinet)
Line 35: Line 35:
 
[[Image:MicrVAX 3600.jpg|thumb|left|150px|A MicroVAX 3600]]
 
[[Image:MicrVAX 3600.jpg|thumb|left|150px|A MicroVAX 3600]]
  
The '''MicroVAX 3500''' and '''MicroVAX 3600''' are very similar; the only distinction appears to be the enclosure: the 3500 was available in the [[BA213]], and the 3600 in the [[H9644 cabinet]].
+
The '''MicroVAX 3500''' and '''MicroVAX 3600''' are very similar.The difference between the 3500 and 3600 is unclear: the [http://vtda.org/docs/computing/DEC/VMS/EK-O35AB-IS-002_MicroVAX_3600_VAXserver_3600_3602_Technical_Information_Jul1988.pdf MicroVAX 3600 VAXserver 3600/3602 Technical Information] manual says that both used the [[BA213]] enclosure; the [http://vtda.org/docs/computing/DEC/VMS/EK-O33AB-OM-002_MicroVAX_3600_VAXserver_3600_3602_Operation_Jul1988.pdf MicroVAX 3600 VAXserver 3600/3602 Operation] manual says that the 3600 is in the [[H9644 cabinet]]. Both agree that it had a 12-slot [[backplane]].
  
They used the [[KA650 CPU]]; [[main memory]] used the [[KA650 Main Memory System]], using a special bus carried on [[over the back]] connectors as well as the [[CD interconnect]] of the [[QBUS]] [[backplane]]. The QBUS was used for [[input/output|I/O]].  
+
They used the [[KA650 CPU]]; [[main memory]] used the [[KA650 Main Memory System]], using a special bus carried on [[over the back]] connectors as well as the [[CD interconnect]] of the [[QBUS]] [[backplane]]. The QBUS was used only for [[input/output|I/O]].  
  
 
{{semi-stub}}
 
{{semi-stub}}
Line 54: Line 54:
 
* [http://www.vaxhaven.com/images/1/1e/EK-O30AB-IS-002.pdf MicroVAX 3500 VAXserver 3500 Technical Information] (EK-O30AB-IS-002)
 
* [http://www.vaxhaven.com/images/1/1e/EK-O30AB-IS-002.pdf MicroVAX 3500 VAXserver 3500 Technical Information] (EK-O30AB-IS-002)
 
* [http://vtda.org/docs/computing/DEC/VMS/EK-O33AB-OM-002_MicroVAX_3600_VAXserver_3600_3602_Operation_Jul1988.pdf MicroVAX 3600 VAXserver 3600/3602 Operation] (EK-O33AB-OM-002)
 
* [http://vtda.org/docs/computing/DEC/VMS/EK-O33AB-OM-002_MicroVAX_3600_VAXserver_3600_3602_Operation_Jul1988.pdf MicroVAX 3600 VAXserver 3600/3602 Operation] (EK-O33AB-OM-002)
* [http://vtda.org/docs/computing/DEC/VMS/EK-O35AB-IS-002_MicroVAX_3600_VAXserver_3600_3602_Technical_Information_Jul1988.pdf MicroVAX 3600 VAXserver 3600/3602 Technical Information] (EK-O35AB-IS-002)
+
* [http://vtda.org/docs/computing/DEC/VMS/EK-O35AB-IS-002_MicroVAX_3600_VAXserver_3600_3602_Technical_Information_Jul1988.pdf MicroVAX 3600 VAXserver 3600/3602 Technical Information] (EK-O35AB-IS-002)
 
* [http://www.ext.zx.net.nz/computers/dec/microvax3500/ MicroVAX 3500]
 
* [http://www.ext.zx.net.nz/computers/dec/microvax3500/ MicroVAX 3500]
  
Line 60: Line 60:
  
 
[[Category: DEC VAX systems]]
 
[[Category: DEC VAX systems]]
 +
[[Category: DEC Documentation Errors]]

Revision as of 16:22, 2 April 2023


MicroVAX 3500/3600
Summary
Announcement date: 9 September 1987
Codename: Mayfair
OS support (VMS): V4.7A or later
OS support (ULTRIX): ULTRIX V2.2
CPU Details
CPU name (VMS): KA650
CPU name (console): KA650-A
CPU module: KA650
Module: M7620
Number of processors: 1
VMS DCL CPU: 10
VMS DCL XCPU: 1
SID: 0A000005
XSID: 01530101
CPU chip: 78034 (CVAX) [2]
FPU chip: 78132
CPU technology: CMOS
CPU cycle time: 90ns [2]
Instruction-buffer: 12 bytes [2]
Translation-buffer: 28 entries [2]
Cache: 1KB (90ns) [2]
Backup cache: 64KB (180ns) [2]
Compatibility mode: No
Console processor: CPU
Console device: None
Firmware version: V5.3
Memory
Minimum memory: 2MB
Maximum memory: 64MB
I/O
Q-bus: 1 @ 3.3MB/s
LAN support: optional
Performance
VUPs: 2.7 [4]


A MicroVAX 3600

The MicroVAX 3500 and MicroVAX 3600 are very similar.The difference between the 3500 and 3600 is unclear: the MicroVAX 3600 VAXserver 3600/3602 Technical Information manual says that both used the BA213 enclosure; the MicroVAX 3600 VAXserver 3600/3602 Operation manual says that the 3600 is in the H9644 cabinet. Both agree that it had a 12-slot backplane.

They used the KA650 CPU; main memory used the KA650 Main Memory System, using a special bus carried on over the back connectors as well as the CD interconnect of the QBUS backplane. The QBUS was used only for I/O.

References

[1] Special Sales Update. Sep 1987.
[2] "CVAX-based Systems", Digital Technical Journal, Vol 1 No 7, August 1988.
[3] VAX Systems Hardware Handbook -- VAXBI Systems. EB-31692-46
[4] VAXcluster Systems. Guidelines for VAXCluster System Configurations. EK-VAXCT-CG-006

External links