I finally had a chance to try the Octane CPU mod I've been wanting to do for ages, after working out the correct resistor
swap (will put up a page about this at some point). The system is just an older unit I'm using for testing. Passed all tests so
far (C-Ray, Blender, RC5, Lynx, etc. - results added! Matches a Fuel/700 for C-Ray). Naturally, the PM string and
PN code in the first main line of the hinv are now incorrect.
My plan is to offer these modded CPUs on my site for a much lower price than an original dual-400, ie. almost the
same performance but a lot cheaper. I've built two modules so far.
Note that I also moved the old 250 cores into the former single-300 modules, changed the resistor and voila,
single-250 with 2MB L2 . Works fine! I'll stick these in the lesser spec Octanes I've been getting rid of recently.
And I've modded a couple of single-300s into 350s, offer a cheaper option than single-400s.
Ian.
swap (will put up a page about this at some point). The system is just an older unit I'm using for testing. Passed all tests so
far (C-Ray, Blender, RC5, Lynx, etc. - results added! Matches a Fuel/700 for C-Ray). Naturally, the PM string and
PN code in the first main line of the hinv are now incorrect.
Code:
Location: /hw/node
PM20250MHZ Board: barcode HKA813 part 030-1286-002 rev C
Location: /hw/node/xtalk/15
IP30 Board: barcode HMX995 part 030-0887-005 rev A
Location: /hw/node/xtalk/15/pci/2
PWR.SPPLY.SR Board: barcode AAB7210435 part 060-0028-003 rev A
FP1 Board: barcode 87892B part 030-0891-003 rev C
Location: /hw/node/xtalk/12
MOT20 Board: barcode HMG041 part 030-1240-003 rev F
2 350 MHZ IP30 Processors
Heart ASIC: Revision E
CPU: MIPS R12000 Processor Chip Revision: 2.3
FPU: MIPS R12010 Floating Point Chip Revision: 0.0
Main memory size: 1024 Mbytes
Xbow ASIC: Revision 1.3
Instruction cache size: 32 Kbytes
Data cache size: 32 Kbytes
Secondary unified instruction/data cache size: 1 Mbyte
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
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
Graphics board 0 is "IMPACTSR" graphics.
Managed (":0.0") 1280x1024
Product ID 0x3, 2 GEs, 2 REs, 4 TRAMs
MGRAS revision 4, RA revision 0
HQ rev B, GE12 rev A, RE4 rev C, PP1 rev H,
VC3 rev A, CMAP rev F, Heart rev E
20" monitor (id 0x3)
PM20250MHZ Board: barcode HKA813 part 030-1286-002 rev C
Location: /hw/node/xtalk/15
IP30 Board: barcode HMX995 part 030-0887-005 rev A
Location: /hw/node/xtalk/15/pci/2
PWR.SPPLY.SR Board: barcode AAB7210435 part 060-0028-003 rev A
FP1 Board: barcode 87892B part 030-0891-003 rev C
Location: /hw/node/xtalk/12
MOT20 Board: barcode HMG041 part 030-1240-003 rev F
2 350 MHZ IP30 Processors
Heart ASIC: Revision E
CPU: MIPS R12000 Processor Chip Revision: 2.3
FPU: MIPS R12010 Floating Point Chip Revision: 0.0
Main memory size: 1024 Mbytes
Xbow ASIC: Revision 1.3
Instruction cache size: 32 Kbytes
Data cache size: 32 Kbytes
Secondary unified instruction/data cache size: 1 Mbyte
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
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
Graphics board 0 is "IMPACTSR" graphics.
Managed (":0.0") 1280x1024
Product ID 0x3, 2 GEs, 2 REs, 4 TRAMs
MGRAS revision 4, RA revision 0
HQ rev B, GE12 rev A, RE4 rev C, PP1 rev H,
VC3 rev A, CMAP rev F, Heart rev E
20" monitor (id 0x3)
My plan is to offer these modded CPUs on my site for a much lower price than an original dual-400, ie. almost the
same performance but a lot cheaper. I've built two modules so far.
Note that I also moved the old 250 cores into the former single-300 modules, changed the resistor and voila,
single-250 with 2MB L2 . Works fine! I'll stick these in the lesser spec Octanes I've been getting rid of recently.
And I've modded a couple of single-300s into 350s, offer a cheaper option than single-400s.
Ian.