Difference between revisions of "MIPS Magnum"
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| − | The '''MIPS | + | The '''MIPS Magnum''' is a [[workstation]] that was largely based on the inhouse Microsoft JAZZ boards that [[Microsoft]] used to develop [[Windows NT]]. |
== Hardware == | == Hardware == | ||
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=== Processor === | === Processor === | ||
| − | The Magnum used a [[MIPS R4000]] CPU, with 16KB of primary cache, and a clock speed of 50MHz, which the CPU internally doubled to 100MHz. | + | The Magnum used a [[MIPS R4000]] CPU, with 16KB of primary [[cache]], and a clock speed of 50MHz, which the CPU internally doubled to 100MHz. |
The Maximum amount of memory was 256MB. | The Maximum amount of memory was 256MB. | ||
| − | The Magnum also had an EISA bus for expansion. | + | The Magnum also had an [[Extended Industry Standard Architecture|EISA]] bus for expansion. |
=== SCSI === | === SCSI === | ||
| − | They were equipped with a NCR 53C94 fast/narrow | + | They were equipped with a NCR 53C94 fast/narrow [[Small Computer System Interface|SCSI]] [[chipset]]. |
=== Ethernet === | === Ethernet === | ||
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=== Video === | === Video === | ||
| − | The Magnum had a simple [[frame buffer]] called the G364. It was a fixed resolution display that was configured thru the ARC. All | + | The Magnum had a simple [[frame buffer]] called the G364. It was a fixed [[resolution]] [[display]] that was configured thru the ARC. All bit depths were 256 colours, in the following resolutions. |
*640x480 | *640x480 | ||
*800x600 | *800x600 | ||
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=== Serial / Parallel === | === Serial / Parallel === | ||
| − | The Magnum had 2 RS-232 serial ports, along with an IBM compatible parallel port. | + | The Magnum had 2 RS-232 [[asynchronous serial line|serial]] ports, along with an IBM compatible [[parallel interface|parallel port]]. |
=== ARC === | === ARC === | ||
| − | The MIPS CPU boots up in little endian mode, and then depending on the firmware will either continue booting (ARC), or would reset into big endian mode. Most of the UNIX ports used the big endian mode. The Magnum, and all RISC workstations that were supported by Windows NT all needed a FAT system partition, in which the | + | The MIPS CPU [[bootstrap|boots]] up in [[little-endian]] mode, and then depending on the [[firmware]] will either continue booting (ARC), or would reset into [[big-endian]] mode. Most of the UNIX ports used the big endian mode. The Magnum, and all RISC workstations that were supported by Windows NT all needed a [[FAT file system]] [[partition]], in which the bootstrap loader was stored. |
== Operating Systems == | == Operating Systems == | ||
| − | The Magnum could run these operating | + | The Magnum could run these [[operating system]]s out of the factory: |
| − | * | + | |
| + | *Windows NT | ||
*[[RiscOS]] | *[[RiscOS]] | ||
| − | Additionally there have been ports of NetBSD, OpenBSD & Linux to the Magnum. | + | Additionally there have been ports of [[NetBSD]], [[OpenBSD]] & [[Linux]] to the Magnum. |
== Emulation == | == Emulation == | ||
Latest revision as of 13:16, 27 February 2024
The MIPS Magnum is a workstation that was largely based on the inhouse Microsoft JAZZ boards that Microsoft used to develop Windows NT.
Contents
Hardware
This is a quick rundown of what I've been able to pull together of what went into a Jazz/Magnum.
Processor
The Magnum used a MIPS R4000 CPU, with 16KB of primary cache, and a clock speed of 50MHz, which the CPU internally doubled to 100MHz. The Maximum amount of memory was 256MB. The Magnum also had an EISA bus for expansion.
SCSI
They were equipped with a NCR 53C94 fast/narrow SCSI chipset.
Ethernet
A SONIC chipset was used, along with an AUI connector on the back of the chassis.
Video
The Magnum had a simple frame buffer called the G364. It was a fixed resolution display that was configured thru the ARC. All bit depths were 256 colours, in the following resolutions.
- 640x480
- 800x600
- 1024x768
- 1280x1024
Serial / Parallel
The Magnum had 2 RS-232 serial ports, along with an IBM compatible parallel port.
ARC
The MIPS CPU boots up in little-endian mode, and then depending on the firmware will either continue booting (ARC), or would reset into big-endian mode. Most of the UNIX ports used the big endian mode. The Magnum, and all RISC workstations that were supported by Windows NT all needed a FAT file system partition, in which the bootstrap loader was stored.
Operating Systems
The Magnum could run these operating systems out of the factory:
- Windows NT
- RiscOS
Additionally there have been ports of NetBSD, OpenBSD & Linux to the Magnum.
Emulation
Qemu can emulate a Magnum, it can even run the ARC firmware. There is a custom build out there that can even run Windows NT. See Installing Windows NT 4.0 on Qemu(MIPS) for more details.
