[jan-jaap]

Dual 300Mhz CPUs was the highest possible configuration for the original octane.

If we define "original Octane" as system with a 030-0887-00x mainboard and 2GB RAM limit, then dual 400MHz R12000 is the max. Apparently there's a revision of the single 600MHz R14K CPU that works too.

Code:

Location: /hw/node
      PM20400MHZ Board: barcode KXN674    part 030-1476-001 rev  D
        Group ff Capability ffffffff Variety ff Laser 0000004d748b
Location: /hw/node/xtalk/15
            IP30 Board: barcode HMT046    part 030-0887-005 rev  A
        Group ff Capability ffffffff Variety ff Laser 00000029d4f2
Location: /hw/node/xtalk/15/pci/2
    PWR.SPPLY.ER Board: barcode AAE9050433 part 060-0035-001 rev  C
        Group ff Capability ffffffff Variety ff Laser 00000031379a
            FP1 Board: barcode JBZ155    part 030-0891-003 rev  E
        Group ff Capability ffffffff Variety ff Laser 0000002fb85f
Location: /hw/node/xtalk/12
          MOT20 Board: barcode HKG598    part 030-1240-003 rev  H
        Group ff Capability ffffffff Variety ff Laser 00000037497d
Location: /hw/node/xtalk/11
          MOT10 Board: barcode HMG917    part 030-1241-002 rev  H
        Group ff Capability ffffffff Variety ff Laser 000000374645
2 400 MHZ IP30 Processors
Heart ASIC: Revision E
CPU: MIPS R12000 Processor Chip Revision: 3.5
FPU: MIPS R12010 Floating Point Chip Revision: 0.0
Main memory size: 2048 Mbytes
Xbow ASIC: Revision 1.3
Instruction cache size: 32 Kbytes
Data cache size: 32 Kbytes
Secondary unified instruction/data cache size: 2 Mbytes
Integral SCSI controller 0: Version QL1040B (rev. 2), single ended
  Disk drive: unit 1 on SCSI controller 0 (unit 1)
Integral SCSI controller 1: Version QL1040B (rev. 2), single ended
IOC3/IOC4 serial port: tty1
IOC3/IOC4 serial port: tty2
IOC3 parallel port: plp1
Graphics board: EMXI
Graphics board: ESI
Integral Fast Ethernet: ef0, version 1, pci 2
Iris Audio Processor: version RAD revision 12.0, number 1
  PCI Adapter ID (vendor 0x10a9, device 0x0003) PCI slot 2
  PCI Adapter ID (vendor 0x1077, device 0x1020) PCI slot 0
  PCI Adapter ID (vendor 0x1077, device 0x1020) PCI slot 1
  PCI Adapter ID (vendor 0x10a9, device 0x0005) PCI slot 3