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The AlphaServer DS20 is the successor to the AlphaServer 1200 using the same pedestal enclosure.
It supports dual EV5 CPUs at either 500MHz, 667MHz or 833MHz.Disk storage is housed in StorageWorks shelves with one internal.
Prices started in 1999 at US$19,900 for a machine with 128MB RAM, one 500MHz CPU and one 4GB disk.
My machine is currently configured with two 500MHz EV6 CPUs and 2GB RAM making it my most powerful Alpha and only EV6 machine. I got it on the 13th of June 2015 with a Compaq-branded DEC Rack, two HSZ70 storage subsystems and a mountain of StorageWorks disk bricks. About a year later got a pair of AlphaServer 4100s from the same place. It can be a little temperamental at times, sometimes refusing to power on and other times seeming to work just fine.
>>>show config
AlphaServer DS20 500 MHz
SRM Console: V7.2-1
PALcode: OpenVMS PALcode V1.98-79, Tru64 UNIX PALcode V1.92-74
Processors
CPU 0 Alpha EV6 pass 2.3 500 MHz SROM Revision: V1.82
Bcache size: 4 MB
CPU 1 Alpha EV6 pass 2.3 500 MHz SROM Revision: V1.82
Bcache size: 4 MB
Core Logic
Cchip DECchip 21272-CA Rev 2.1
Dchip DECchip 21272-DA Rev 2.0
Pchip 0 DECchip 21272-EA Rev 2.2
Pchip 1 DECchip 21272-EA Rev 2.2
TIG Rev 4.14
Arbiter Rev 2.10 (0x1)
MEMORY
Array # Size Base Addr
------- ---------- ---------
0 512 MB 000000000
1 512 MB 020000000
2 512 MB 040000000
3 512 MB 060000000
Total Bad Pages = 0
Total Good Memory = 2048 MBytes
PCI Hose 00
Bus 00 Slot 05/0: Cypress 82C693
Bridge to Bus 1, ISA
Bus 00 Slot 05/1: Cypress 82C693 IDE
dqa.0.0.105.0
Bus 00 Slot 05/2: Cypress 82C693 IDE
dqb.0.1.205.0
Bus 00 Slot 05/3: Cypress 82C693 USB
usba0.0.0.305.0
Bus 00 Slot 08: QLogic ISP10x0
pkd0.7.0.8.0 SCSI Bus ID 7
Bus 00 Slot 09: DE500-BA Network Controller
ewb0.0.0.9.0 08-00-2B-C3-A6-92
PCI Hose 01
Bus 00 Slot 07: DECchip 21152-AA
Bridge to Bus 2, PCI
Bus 00 Slot 08: NCR 53C895A
pkc0.7.0.8.1 SCSI Bus ID 7
Bus 02 Slot 00: NCR 53C875
pka0.7.0.2000.1 SCSI Bus ID 7
dka100.1.0.2000.1 RRD46
Bus 02 Slot 01: NCR 53C875
pkb0.7.0.2001.1 SCSI Bus ID 7
Bus 02 Slot 02: DE500-AA Network Controller
ewa0.0.0.2002.1 00-06-2B-00-AD-DB
ISA
Slot Device Name Type Enabled BaseAddr IRQ DMA
0
0 MOUSE Embedded Yes 60 12
1 KBD Embedded Yes 60 1
2 COM1 Embedded Yes 3f8 4
3 COM2 Embedded Yes 2f8 3
4 LPT1 Embedded Yes 3bc 7
5 FLOPPY Embedded Yes 3f0 6 2
The DS20 is equipped with a remote management console which can be accessed via either dial-up modem, terminal or terminal emulator on the first serial port (the same one you'd use for the SRM console).
By default to access it with a terminal or terminal emulator, send the RCM Escape sequence which is, by default, ^]^]rcm. If you're using C-Kermit for Windows as your terminal emulator with the default key bindings you would do this by hitting Ctrl+] four times then typing rcm (One Ctrl+] for the local escape, next Ctrl+] to send an escape, repeated twice).
RCM>status
Firmware Rev: V2.0
Escape Sequence: ^]^]RCM
Remote Access: DISABLE
Alerts: DISABLE
Alert Pending: NO
Temp (C): 21.0
RCM Power Control: OFF
RCM Halt:
External Power: ON
Server Power: OFF
RCM>