Fuel 800MHz machine turns out to be 600MHz

cz7asm

New member
Dec 9, 2020
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Hi,
I just got really confused by one of my Fuels that I believed was an 800 MHz machine. This was based on serial id's of its components, which are:

030-1932-001 PIMM
030-1707-003 Motherboard

So far every Fuel I worked with and had a PIMM serial number starting with 030-19xx-xxx was an 800 MHz CPU. However, the system reports 600MHz.

This is detailed hinv output:

IRIS 4# hinv -mv
Location: /hw/module/001c01/node
IP34 Board: barcode MMD891 part 030-1707-003 rev -H
Location: /hw/module/001c01/node/cpubus/0
IP34PIMM Board: barcode NNK325 part 030-1932-001 rev -B
Location: /hw/module/001c01/Ibrick/xtalk/13
ASTODYB Board: barcode MEM866 part 030-1725-001 rev -F
Location: /hw/module/001c01/Ibrick/xtalk/14
IP34 Board: barcode MMD891 part 030-1707-003 rev -H
Location: /hw/module/001c01/Ibrick/xtalk/15
IP34 Board: barcode MMD891 part 030-1707-003 rev -H

1 600 MHZ IP35 Processor
CPU: MIPS R16000 Processor Chip Revision: 2.2
FPU: MIPS R16010 Floating Point Chip Revision: 2.2
CPU 0 at Module 001c01/Slot 0/Slice A: 600 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.2. Scache: Size 4 MB Speed 300 Mhz Tap 0xa
Main memory size: 1024 Mbytes
Instruction cache size: 32 Kbytes
Data cache size: 32 Kbytes
Secondary unified instruction/data cache size: 4 Mbytes
....


I also found some old irixnet post where omeone posted his 800MHz machine hinv and the PIMM serial number is the same:

Location: /hw/module/001c01/node
IP34 Board: barcode NCJ712 part 030-1707-004 rev -C
Location: /hw/module/001c01/node/cpubus/0
IP34PIMM Board: barcode NNN514 part 030-1932-001 rev -B
Location: /hw/module/001c01/Ibrick/xtalk/13
ASTODY Board: barcode MLD922 part 030-1726-003 rev -E
Location: /hw/module/001c01/Ibrick/xtalk/14
IP34 Board: barcode NCJ712 part 030-1707-004 rev -C
Location: /hw/module/001c01/Ibrick/xtalk/15
IP34 Board: barcode NCJ712 part 030-1707-004 rev -C
1 800 MHZ IP35 Processor
CPU: MIPS R16000 Processor Chip Revision: 2.2
FPU: MIPS R16010 Floating Point Chip Revision: 2.2
CPU 0 at Module 001c01/Slot 0/Slice A: 800 Mhz MIPS R16000 Processor Chip (enabled)
Processor revision: 2.2. Scache: Size 4 MB Speed 400 Mhz Tap 0xa
Main memory size: 2048 Mbytes
Instruction cache size: 32 Kbytes
Data cache size: 32 Kbytes
Secondary unified instruction/data cache size: 4 Mbytes


Obviously my understanding of these machines isn't as good as I thought... I would appriciate any comments on this! Thanks.
 
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cz7asm

New member
Dec 9, 2020
19
15
3
Additional clues... During L2 boot this is reported in the console:

DIAG RESULTS:
ALL DIAGS PASSED.
**** End System Configuration and Diagnostics Summary ****

*** Module 001c01 CPU configuration values mismatch.

The CPU configuration values from board EEPROM/PSC did not match
on 1 module(s). Please reflash the PROM image on the above listed module(s).
 
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