I tried an AUA-3020 (
Blue PCB, all full-sized ports, looks just like the above) in my
Fuel, without much success

Trying to boot the system, I repeatedly get the following, even after re-seating the card:
Code:
IP35 PROM SGI Version 6.211 built 04:16:18 PM Jan 25, 2008
Running in DDR mode
Testing/Initializing memory ............... DONE
Copying PROM code to memory ............... DONE
Discovering local IO ...................... DONE
Discovering NUMAlink connectivity .........
Local hub NUMAlink is down.
*** Local network link down
DONE
Found 1 objects (1 hubs, 0 routers) in 30359 usec
Waiting for peers to complete discovery.... DONE
No other nodes present; becoming global master
Global master is /hw/rack/001/bay/01
Intializing any CPUless nodes.............. DONE
Checking partitioning information ......... DONE
No other nodes present; becoming partition master
Loading BASEIO prom ....................... DONE
BASEIO PROM Monitor SGI Version 6.211 built 04:15:20 PM Jan 25, 2008 (BE64)
1 CPUs on 1 nodes found.
Automatic update of PROM environment disabled
PS/2 Keyboard & Mouse diagnostics
Found mouse on port 0
Found keyboard on port 1
PS/2 Keyboard & Mouse diagnostics passed
Graphics diagnostics
Odyssey board #0 found on nasid 0
Running Odyssey xtalk sanity diag...
Board version 1 - Buzz revision 3B
On board sdram size: 128 Mb
Cas latency: CAS 3
4 banks by sdram module
Running Odyssey Buzz registers diag...
Device passed diagnostics
Installing PROM Device drivers ............
Base I/O Ethernet set to /dev/ethernet/ef0
Walking SCSI Adapter 0, (pci id 1)
1+ Device Vendor Product: SGI IC35L073UWDY10-0
2- 3- 4- 5- 6- 7- 8- 9- 10- 11- 12- 13- 14- 15- = 1 device(s)
Walking SCSI Adapter 1, (pci id 1)
1- 2- 3- 4- 5- 6+ Device Vendor Product: TOSHIBA DVD-ROM SD-M1401
7- 8- 9- 10- 11- 12- 13- 14- 15- = 1 device(s)
Initializing PROM Device drivers .......... DONE
Checking hardware inventory ............... Found new or re-enabled component PCI DEV 1
Found new or re-enabled component PCI DEV 1
DONE
**** System Configuration and Diagnostics Summary ****
CONFIG:
No. of NODEs enabled = 1
No. of NODEs disabled = 0
No. of CPUs enabled = 1
No. of CPUs disabled = 0
Mem enabled = 4096 MB
Mem disabled = 0 MB
No. of RTRs enabled = 0
No. of RTRs disabled = 0
DIAG RESULTS:
ALL DIAGS PASSED.
**** End System Configuration and Diagnostics Summary ****
Starting up the system...
To perform system maintenance instead, press <Esc>
IRIX Release 6.5 IP35 Version 07202013 System V - 64 Bit
Copyright 1987-2006 Silicon Graphics, Inc.
All Rights Reserved.
WARNING: pciio_ppb: Host PCI slot /hw/module/001c01/Ibrick/xtalk/15/pci/2
does not support having multiple dma masters downstream.
No devices behind that slot are being initialized. This behavior
can be overridden by setting the kernel mtune pciio_multimaster_override.
WARNING: Read Response Data Error, physaddr 0xf700000
ALERT: PIO Error on PCI Bus /hw/module/001c01/Ibrick/xtalk/15/pci
PCI Slot 4 Func 0 Window 0 Offset 0x2017d
kl_ioerror_handler Failed handling PIO Read error in kernel mode
widgetnum: 0xf
widgetdev: 0x20
srccpu: 0x0
srcnode: 0x0
errnode: 0x0
sysioaddr: 0xf82017d
xtalkaddr: 0x82017d
busspace: 0x8
busaddr: 0x2017d
vaddr: 0x920000000f82017d
epc: 0xc00000000024273c
ef: 0xc000000001614118
(NOTE: CPU 0=/hw/module/001c01/node/cpubus/0/a)
WARNING: UCE interrupt on PIO access
HARDWARE ERROR STATE:
+ Errors on node Nasid 0x0 (0)
+ IP35 in /hw/module/001c01/node [serial number NCJ502]
+ BEDROCK signalled following errors.
+ BEDROCK PI 0 Error Status 0 A Register: 0xc003dc0001600006
+ 02<->00: rrb error type 6 Response Data Error
+ 24<->17: message command 0xb0 Reply(PRPLY)
+ 61<->25: error address 0x1ee0000 << 3 = (0xf700000)
+ 63<->62: error status valid (over_run)
+ BEDROCK PI 0 Error Status 1 A Register: 0x10080000000000
+ 52<->43: crb status 0x201
+ IO Board in /hw/module/001c01/io widget: 0xf serial:
+ Bridge ASIC errors:
+ Bridge interrupt status register: 0x800
+ INT_N status: 0x0
+ 11: PCI bus device select timeout
+ PCI Error Upper Address Register: 0x0
+ PCI Error Lower Address Register: 0x300004
End Hardware Error State
++FRU ANALYSIS BEGIN
No rules triggered: Insufficient data
Timeout Histogram is empty.
++FRU ANALYSIS END
PANIC: Kernel Data Bus error in IO space at physical address 0xf82017d (EPC 0xc00000000024273c)
Restarting the machine...
The slot appears to be fine, as an older 3-port Firewire card work in the same position.
(I do already have 'pciio_multimaster_override' set, for the existing Firewire card which I tried replacing with the AUA-3020... this couldn't trigger this problem could it?)