Hello,
ACA1233n-new 55mhz
Warranty code: GT4C/
I've had the card for two days, and have tested it carefully. Only one thing is not working: ACAMapROM (as well as MapROM function in ACATool) causes immediate and severe instability. Typically the machine will crash immediately, but sometimes it lives long enough to invalidate the HDD, scramble the screen graphics, or bring up a Guru trap in Workbench (perhaps several seconds.) A simple reboot does not cure this, a power cycle is needed (I assume MapROM is reset-persistent.)
I've tested in the following manner in an attempt to rule out any software interference:
ACA1233n card factory default options only
ACATool and ACA1233nLib from Wiki (latest, not beta or alpha versions)
Cold boot with no startup-sequence, then invoke "ACAMapROM i" or ACATool Maprom
Tested both before and after setpatch
Both with internal ROM and Kickstart images
MMUlibs are installed to the OS, but are not loaded in my testing (disabled startup-sequence, cold boot, no use of CPU FASTROM, MuFASTROM or any other MMU-activating commands.)
Have tested with two different PSU (see below)
Have tested by pulling card back on the connector slightly a few times
RAM tests so far in MBRTest-2 have passed every cycle (tested with MMU disabled, of course)
A1200 NTSC US
Motherboard rev. 1D.1
E123C and E125C were initially present, but have been removed with no change in behavior.
E121C and E122C were unpopulated from the factory.
Power Supply: Have tested with A500 4.5A brick, and with AmigaStore Spain brick.
HDD: 2.5" IDE CF card adapter on very short cable. Have also tested with an Elbox EIDE'99 buffered adapter which works excellent in conjunction with IDE Speeder.
Kickstart 3.1.4 EPROMs installed (internal MapROM tested, and also tested with 3.0 A1200 kickrom image file)
AmigaOS 3.1.4.1
Finally.. using CPU FASTROM or MuFASTROM works perfectly. No issues mapping internal kickstart ROM to 32-bit RAM when using the MMU to do so, and dramatic performance improvement in opening folders confirms this is working.
I'd like to add that aside from this, the card has been functioning without any other flaw. Not one single guru or any observed issue outside of testing with MapROM. Sysinfo reports more than 11000 stones, and data burst mode is confirmed to be stable. IDE speeder at maximum setting works excellent if used in conjunction with buffered interface. No anomalies noted with TGTest in AIBB. WHDLoad compatibility has been perfect, even where my previous M1230XA accelerator failed. I get nearly 5MB/sec IDE performance. It's a remarkable achievement. With such stable behavior, I would not suspect a hardware fault.