Onyx R4400/150 RE2 (4RM version shown here; also tested with other RM configs).

4 150 MHZ IP19 Processors
CPU: MIPS R4400 Processor Chip Revision: 5.0
FPU: MIPS R4000 Floating Point Coprocessor Revision: 0.0
Main memory size: 256 Mbytes, 2-way interleaved
Instruction cache size: 16 Kbytes
Data cache size: 16 Kbytes
Secondary unified instruction/data cache size: 1 Mbyte
Integral SCSI controller 0:  Version WD33C95A, single ended, revision 1
    Disk drive: unit 1 on SCSI controller 0
Integral SCSI controller 1:  Version WD33C95A, differential, revision 1
    Disk drive: unit 1 on SCSI controller 1
    Disk drive: unit 2 on SCSI controller 1   
Integral EPC serial ports: 4
Integral EPC parallel ports: Ebus slot 3
RealityEngineII Graphics Pipe 0 at IO Slot 3 Physical Adapter 2 (Fchip rev2)
Integral Ethernet controller: et0, Ebus slot 3
I/O board, Ebus slot 3: IO4 revision 1
VME bus: adapter 13
VME bus: adapter mapped to adapter 13
EPC external interrupts

Graphics board 0 is ?REV? graphics.
    Managed (?:0.0?) 1280x1024
    Display 1280x1024 @ 72 Hz
    12 GE (GE10 rev. 0x7)
    4 RM4 boards
    Large pixel depth
    Not using Multi-Channel Option