Currently, MESS supports two different Indy models
* ip225015 [Indy (R5000, 150MHz)] - IP22 board with a MIPS R5000 at 150 MHz.
* ip224613 [Indy (R4600, 133MHz)] - IP22 board with a MIPS R4600 at 133 MHz.
The emulation of these systems is still Preliminary.
History and Trivia
The Indy was SGI's attempt to offer a low-cost machine with graphical capacities close to the ones offered by its workstations. It was also the first computer to include a digital video camera which, added to an on-board ISDN adapter, the inclusion of analog and digital I/O, SCSI, and standard composite and S-Video inputs, made the SGI Indy a real multimedia machine.
SGI also released a variant of the Indy for low-end server usage, called Challenge S. This system has an identical case as the Indy (except for the name badge), and featured a nearly identical motherboard as the Indy, but without any graphics or sound hardware.
The Indy was available with many different MIPS CPU:
| CPU | clock | L2 cache |
| R4000PC | 100 Mhz | - |
| R4000SC | 100 Mhz | 1 MB |
| R4400SC | 100 Mhz / 150 Mhz / 175 Mhz / 200 Mhz | 1 MB |
| R4600PC | 100 Mhz / 133 Mhz | - |
| R4600SC | 133 Mhz | 512 kB |
| R5000PC | 150 Mhz | - |
| R5000SC | 150 Mhz / 180 Mhz | 512 kB |
Every board used, as memory modules, PS/2 FPM memory with parity or, alternatively, PS/2 SIMMs (up to 32MB per module). As on Indigo boards, on the board are present 12 memory slots and they had to be filled in groups of 4.
The Indy was designed to run IRIX, the SGI's version of UNIX, which supported it until IRIX 6.5.22. Additionally, also NetBSD is available for the Indy, through its ''sgimips'' port.
* SGI's MIPS systems -- http://www.sgi.com/products/legacy/mips.html
* Indigo's page at Obsolete -- http://hardware.majix.org/computers/sgi.indy/
* Indy's port of NetBSD -- http://www.netbsd.org/ports/sgimips/
* Wikipedia page -- http://en.wikipedia.org/wiki/SGI_Indy