This is Moff, a Origin 350. I finally sold the entire 16 CPU configuration as on the picture below.
Here is the hinv:
# hinv -mv
Location: /hw/module/001c01/node
IP53_4CPU Board: barcode MXL801 part 030-1868-001 rev -C
Location: /hw/module/001c01/IXbrick/xtalk/15
2U_INT_53 Board: barcode MTC645 part 030-1809-003 rev -A
Location: /hw/module/001c01/IXbrick/xtalk/15/pci-x/0/1/ioc4
IO9 Board: barcode MTS394 part 030-1771-005 rev -A
Location: /hw/module/001c02/node
IP53_4CPU Board: barcode MXM753 part 030-1868-001 rev -C
Location: /hw/module/001c02/IXbrick/xtalk/15
2U_INT_53 Board: barcode MTC260 part 030-1809-003 rev -A
Location: /hw/module/001c02/IXbrick/xtalk/15/pci-x/0/1/ioc4
IO9 Board: barcode MTS540 part 030-1771-005 rev -A
Location: /hw/module/001c03/node
IP53_4CPU Board: barcode MTA286 part 030-1868-001 rev -C
Location: /hw/module/001c03/IXbrick/xtalk/15
2U_INT_53 Board: barcode MTC266 part 030-1809-003 rev -A
Location: /hw/module/001c04/node
IP53_4CPU Board: barcode MTA290 part 030-1868-001 rev -C
Location: /hw/module/001c04/IXbrick/xtalk/15
2U_INT_53 Board: barcode MTC253 part 030-1809-003 rev -A
Location: /hw/module/001r05/router
ROUTER Board: barcode MVA352 part 030-1634-003 rev -A
16 700 MHZ IP35 Processors
CPU: MIPS R16000 Processor Chip Revision: 2.1
FPU: MIPS R16010 Floating Point Chip Revision: 2.1
CPU 0 at Module 001c01/Slot 0/Slice A: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 1 at Module 001c01/Slot 0/Slice B: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 2 at Module 001c01/Slot 0/Slice C: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 3 at Module 001c01/Slot 0/Slice D: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 4 at Module 001c02/Slot 0/Slice A: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 5 at Module 001c02/Slot 0/Slice B: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 6 at Module 001c02/Slot 0/Slice C: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 7 at Module 001c02/Slot 0/Slice D: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 8 at Module 001c03/Slot 0/Slice A: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 9 at Module 001c03/Slot 0/Slice B: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 10 at Module 001c03/Slot 0/Slice C: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 11 at Module 001c03/Slot 0/Slice D: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 12 at Module 001c04/Slot 0/Slice A: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 13 at Module 001c04/Slot 0/Slice B: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 14 at Module 001c04/Slot 0/Slice C: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
CPU 15 at Module 001c04/Slot 0/Slice D: 700 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.1. Scache: Size 4 MB Speed 350 Mhz Tap 0xc
Main memory size: 16384 Mbytes
Instruction cache size: 32 Kbytes
Data cache size: 32 Kbytes
Secondary unified instruction/data cache size: 4 Mbytes
Memory at Module 001c01/Slot 0: 4096 MB (enabled)
Bank 0 contains 512 MB (Premium) DIMMS (enabled)
Bank 1 contains 512 MB (Premium) DIMMS (enabled)
Bank 2 contains 512 MB (Premium) DIMMS (enabled)
Bank 3 contains 512 MB (Premium) DIMMS (enabled)
Bank 4 contains 512 MB (Premium) DIMMS (enabled)
Bank 5 contains 512 MB (Premium) DIMMS (enabled)
Bank 6 contains 512 MB (Premium) DIMMS (enabled)
Bank 7 contains 512 MB (Premium) DIMMS (enabled)
Memory at Module 001c02/Slot 0: 4096 MB (enabled)
Bank 0 contains 512 MB (Premium) DIMMS (enabled)
Bank 1 contains 512 MB (Premium) DIMMS (enabled)
Bank 2 contains 512 MB (Premium) DIMMS (enabled)
Bank 3 contains 512 MB (Premium) DIMMS (enabled)
Bank 4 contains 512 MB (Premium) DIMMS (enabled)
Bank 5 contains 512 MB (Premium) DIMMS (enabled)
Bank 6 contains 512 MB (Premium) DIMMS (enabled)
Bank 7 contains 512 MB (Premium) DIMMS (enabled)
Memory at Module 001c03/Slot 0: 4096 MB (enabled)
Bank 0 contains 512 MB (Standard) DIMMS (enabled)
Bank 1 contains 512 MB (Standard) DIMMS (enabled)
Bank 2 contains 512 MB (Standard) DIMMS (enabled)
Bank 3 contains 512 MB (Standard) DIMMS (enabled)
Bank 4 contains 512 MB (Standard) DIMMS (enabled)
Bank 5 contains 512 MB (Standard) DIMMS (enabled)
Bank 6 contains 512 MB (Standard) DIMMS (enabled)
Bank 7 contains 512 MB (Standard) DIMMS (enabled)
Memory at Module 001c04/Slot 0: 4096 MB (enabled)
Bank 0 contains 512 MB (Standard) DIMMS (enabled)
Bank 1 contains 512 MB (Standard) DIMMS (enabled)
Bank 2 contains 512 MB (Standard) DIMMS (enabled)
Bank 3 contains 512 MB (Standard) DIMMS (enabled)
Bank 4 contains 512 MB (Standard) DIMMS (enabled)
Bank 5 contains 512 MB (Standard) DIMMS (enabled)
Bank 6 contains 512 MB (Standard) DIMMS (enabled)
Bank 7 contains 512 MB (Standard) DIMMS (enabled)
ROUTER in Module 001c01/Slot 0: Revision 1: Active Ports [2,3,4,5,] (enabled)
Integral SCSI controller 3: Version IDE (ATA/ATAPI) IOC4
Integral SCSI controller 2: Version IDE (ATA/ATAPI) IOC4
CDROM: unit 0 on SCSI controller 2
Integral SCSI controller 4: Version QL12160, low voltage differential
Integral SCSI controller 5: Version QL12160, low voltage differential
Integral SCSI controller 0: Version QL12160, low voltage differential
Disk drive: unit 1 on SCSI controller 0 (unit 1)
Integral SCSI controller 1: Version QL12160, low voltage differential
IOC3/IOC4 serial port: tty7
IOC3/IOC4 serial port: tty8
IOC3/IOC4 serial port: tty9
IOC3/IOC4 serial port: tty10
IOC3/IOC4 serial port: tty3
IOC3/IOC4 serial port: tty4
IOC3/IOC4 serial port: tty5
IOC3/IOC4 serial port: tty6
Gigabit Ethernet: tg1, module 001c02, PCI bus 1 slot 4
Integral Gigabit Ethernet: tg0, module 001c01, PCI bus 1 slot 4
PCI Adapter ID (vendor 0x10a9, device 0x100a) PCI slot 1
PCI Adapter ID (vendor 0x1077, device 0x1216) PCI slot 3
PCI Adapter ID (vendor 0x14e4, device 0x1645) PCI slot 4
PCI Adapter ID (vendor 0x10a9, device 0x100a) PCI slot 1
PCI Adapter ID (vendor 0x1077, device 0x1216) PCI slot 3
PCI Adapter ID (vendor 0x14e4, device 0x1645) PCI slot 4
IOC4 firmware revision 79
IOC4 firmware revision 79
IOC3/IOC4 external interrupts: 2
IOC3/IOC4 external interrupts: 1
HUB in Module 001c01/Slot 0: Revision 2 Speed 200.00 Mhz (enabled)
HUB in Module 001c02/Slot 0: Revision 2 Speed 200.00 Mhz (enabled)
HUB in Module 001c03/Slot 0: Revision 2 Speed 200.00 Mhz (enabled)
HUB in Module 001c04/Slot 0: Revision 2 Speed 200.00 Mhz (enabled)
IP35prom in Module 001c01/Slot n0: Revision 6.210
IP35prom in Module 001c02/Slot n0: Revision 6.210
IP35prom in Module 001c03/Slot n0: Revision 6.210
IP35prom in Module 001c04/Slot n0: Revision 6.210
# uname -aR
IRIX64 moff 6.5 6.5.30f 07202013 IP35
# scsicontrol -i /dev/scsi/sc0d1l0
/dev/scsi/sc0d1l0: Disk IBM-ESXSST373307LC F B258
ANSI vers 3, ISO ver: 0, ECMA ver: 0; supports: 16bit synch linkedcmds cmdqueing
Device is ready
# scsicontrol -i /dev/scsi/sc2d0l0
/dev/scsi/sc2d0l0: CD-ROM MATSHITADVD-ROM SR-8178 PZ16
ANSI vers 0, ISO ver: 0, ECMA ver: 0; supports:
Device is ready
# /sbin/diskpatch -v
sc0d1l0: Disk IBM-ESXSST373307LC F B258 Serial: 3HZ0H6X7