• d4k_a

DEC 4000 AXP

Minicomputer

Manufacturer:DEC
CPU Architecture:Alpha
Available OS:DEC VMS
Available OS:DEC Digital UNIX/Tru64 UNIX
Introduction:1992
Dimensions (WxHxD):50 x 88 x 77cm
Weight:124kg
Price:US$77000
Bus:IEEE FutureBus+ Profile B
Number in collection:3
  • 2016-11-27-15.00.21
  • d4k_b
  • d4k_c
  • d4k_d
  • d4k_e
  • d4k_f
  • d4k_g
  • d4k_h
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The DEC 4000 AXP was part of the first generation of Alpha CPU based systems. Positioned as a departmental server, it was larger than the DEC 3000 AXP workgroup server, but smaller than the DEC 7000 AXP enterprise server. Originally, there were two models, 610 and 620, with 1 or 2 160MHz CPUs. Later, models 710 and 720 were added, with 190 MHz CPUs. All three of my DEC 4000s seem to have started life as a model 610 (according to the stickers on the back), but a second CPU was added to each of them later, turning them into model 620s. I changed one of them back to a model 610, by removing a (broken) CPU module.

CPU, memory, I/O and power supplies are all situated at the back of the machine, leaving room in front of the machine for storage. There are 4 disk drawers, each of which can hold up to 4 disks. The disk controllers these connect to can be set to either SCSI or DSSI mode.

DEC 4000 AXP Model 620

Specimen 1

Serial number:AY33640913
CPU's:2 x 160MHz DEC 21064 (EV4) (max. 2)
Memory:384MB (max. 512MB)
Condition:Fully operational
Acquired:2012
Acquired from:Fred van Kempen

DEC 4000 AXP Model 610

Specimen 2

Serial number:AY34663400
CPU's:1 x 160MHz DEC 21064 (EV4) (max. 2)
Memory:128MB (max. 512MB)
Condition:Fully operational (but missing a CPU and 128MB of memory)
Acquired:2016
Donated by:Pontus Pihlgren

DEC 4000 AXP Model 620

Specimen 3

Serial number:AY34663381
CPU's:2 x 160MHz DEC 21064 (EV4) (max. 2)
Memory:128MB (max. 512MB)
Condition:Fully operational (but missing 128MB of memory)
Acquired:2016
Donated by:Pontus Pihlgren

Internal links

July 4th Megahaul
Yggdrasils final journey
Swedish Alpha's Arrived