feipoa wrote:Anyone have a working system based on the IDT Orion MIPS CPU, e.g. R4600, R4700, or R5000, designed by Quantum Effect Design?
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Anyone have a working system based on the IDT Orion MIPS CPU, e.g. R4600, R4700, or R5000, designed by Quantum Effect Design?
https://en.wikipedia.org/wiki/R4600
http://chipdb.org/img-idt-79rv4700-133g-785.htm
Wiki mentions it was for low-end workstations and ran on NT. It also has an FPU, which supposedly isn't that great. I was thinking it would be neat to benchmark these chips, even if it can only use operating systems like NT.
Does anyone know what motherboard models this might run off of so I can hunt them down on eBay?
some sgi indy's ran 4600's you can find 100mhz + 133mhz with no cache (4600PC) and 133mhz with 512kb cache (4600sc). Some old cisco routers also ran 4600+4700 cpu.
you can look for IP20, IP22 and IP24 boards. Indy, Indigo and Indigo 2, Challenge M, Challenge S. These will all be a mix of r4200/4400/4600/4700/5000. Some IP32 O2' had r5000 but most were r10k, r12k.
thing to note, the r4600 stuff running NT4, your not gonna find clone mobo, from memory its basically just the SGI stuff, and as for running benchmarks, there was little to no apps available for NT4 MIPS. Youd have to compile your own benchmark code. All these ip20/22/24 architecture is pure custom sgi chips, etc. best to get entire SGI Indy. MIPS NT4 is not fun 🤣!
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