VAX 8250
From Computer History Wiki
VAX 8250 systems
| VAX 8250 | |
| Summary | |
|---|---|
| Announcement date: | 2 March 1987 |
| Codename: | Sargas |
| OS support (VMS): | VMS V4.5 |
| OS support (ULTRIX): | ULTRIX V2.0 [1] |
| CPU Details | |
| CPU name (VMS): | KA825 |
| CPU name (console): | None |
| CPU module: | KA825 |
| Module: | T1001-YA |
| Number of processors: | 1 |
| VMS DCL CPU: | 5 |
| VMS DCL XCPU: | 0 |
| SID: | 05903914 |
| XSID: | 00000000 |
| CPU chip: | V11 [1] |
| CPU technology: | ZMOS |
| CPU cycle time: | 160ns |
| CPU clock: | 50MHz [1] |
| Instruction-buffer: | 8 bytes [2] |
| Translation-buffer: | 512 entries |
| Control store: | 15K 40-bit words [2] |
| Writable Control Store: | 1K 40-bit words [2] |
| Cache: | 8KB (160ns) [2] |
| Compatibility mode: | No |
| Console processor: | CPU |
| Console device: | None |
| Memory | |
| Minimum memory: | 4MB |
| Maximum memory: | 128MB [2] |
| Memory checking: | 7-bit ECC/longword [2] |
| I/O | |
| Max I/O throughput: | 13.3MB/s [2] |
| UNIBUS: | 1 @ 1.5MB/s |
| VAXBI: | 1 @ 13.3MB/s |
| LAN support: | optional |
| Performance | |
| VUPs: | 1.2 [2] |
The VAX 8250 is an improved version of the VAX 8200 mid-range VAX uni-processor system built around the VAXBI bus; it has the improved KA825 CPU in place of the KA820 CPU of the VAX 8200.
References
[1] KA825 Maintenance Advisory. EK-KA825-MA-001
[2] VAX Systems Hardware Handbook -- VAXBI Systems. EB-31692-46
External links
- KA825 Maintenance Advisory (EK-KA825-MA-001)
- VAX 8200 to VAX 8350 and VAX 8250 to VAX 8350 Upgrade Procedures (EK-83XUP-IN-001)
