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Some security tools quarantine unrecognized .ic655 files. Check antivirus quarantine logs and restore if present.
If the file is a system-level component (less likely but possible):
The error “78081g503.ic655 not found” is a classic example of the friction between legacy hardware dependencies and modern operational demands. While intimidating, the error is solvable through systematic investigation—starting with file searches and hardware reseating, and progressing to advanced recovery methods like JTAG reprogramming or OEM restoration.
The key takeaway: never ignore a “not found” error. It is rarely a false positive. Whether it’s a missing configuration file or a dying integrated circuit, early diagnosis prevents catastrophic system failure. By following the steps outlined above, engineers and technicians can restore functionality and document preventive measures for long-term reliability. 78081g503.ic655 not found
If you have encountered this specific error with a particular machine model (e.g., a 1990s CNC lathe or a medical imaging PACS server), share your experience in the comments below—community knowledge is often the fastest path to a solution.
Need further assistance? Provide the make, model, and firmware version of your system for a tailored diagnostic flow.
The error "78081g503.ic655 NOT FOUND" indicates a missing BIOS or ROM file required by the MAME (Multiple Arcade Machine Emulator) to run specific arcade hardware, specifically the Sony ZN-2 motherboard. Some security tools quarantine unrecognized
This specific file, 78081g503.ic655, is a CPLD (Complex Programmable Logic Device) dump. According to technical documentation on GitHub and community discussions on Reddit, it is currently flagged as "NO GOOD DUMP KNOWN." Technical Incident Report Field Error Code 78081g503.ic655 NOT FOUND Emulator MAME (Multiple Arcade Machine Emulator) Hardware Platform Sony ZN-2 (Arcade Motherboard) Affected Titles Street Fighter EX2 Plus (Japan), Strider 2 , and other ZN-2 based games. Missing Component CPLD Logic Data (Location IC655) Status Critical / Missing Dump Root Cause Analysis
The file 78081g503.ic655 is a security or logic chip dump that is extremely difficult to extract from physical arcade boards. Because there is no "good dump" (a verified working digital copy) available in the public domain, MAME lists it as a required file but marks it as missing. Resolution & Workarounds
Ignore the Error: In most cases, MAME can still run the game using "placeholder" logic. If the emulator stops with a "Fatal Error," you are likely missing the main game ROMs or the parent BIOS set (coh3002c.zip or zn2.zip), not just this specific logic chip. Need further assistance
Update ROM Sets: Ensure your ROMs match your current MAME version. If you are using a newer version of MAME with older ROM sets, the emulator may look for new dumps (like this CPLD) that weren't required in older versions.
Check Parent ROMs: Many ZN-2 games require the Sony ZN-2 BIOS ROMs to be present in the same directory. Ensure you have the zn2.zip or the specific board BIOS (e.g., coh3002c.zip) in your ROMs folder.
Are you trying to run a specific game title when this error appears?
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