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- From: Treble@asc.slb.com (John Treble)
- Newsgroups: comp.sys.mac.system
- Subject: Sad Mac Error codes
- Followup-To: comp.sys.mac.system
- Date: 22 Jan 1993 14:48:29 GMT
- Organization: ASC-Austin
- Lines: 58
- Distribution: world
- Message-ID: <Treble-220193083411@asc438.asc.slb.com>
- NNTP-Posting-Host: asc438.asc.slb.com
-
- PLEASE SAVE THIS FILE FOR FUTURE REFERENCE -- I'LL NOT POST IT AGAIN!
-
- When you turn on the Macintosh or press the reset button on the programmers
- switch, several memory and system diagnostics take place. If any test
- fails, the Sad Mac appears. The code number below it indicates the nature
- of the malfunction.
-
- The first two digits indicate the type of error. If it is a RAM test
- failure, (first two digits - 02, 03, 04 or 05) the last four digits
- identify the suspect chips. The last four digits must be converted from
- hexadecimal numbers to a 16 digit number to learn which chips are bad.
-
- If the Sad Mac appears after the disk starts spinning, the first two digits
- of the code number under the icon are 0F, and the next four digits indicate
- the type of error. If you get a Sad Mac with an 0F code, try restarting the
- Mac while holding down the Option and Command keys (rebuild the desktop
- file.) You may also be able to fix a faulty startup disk by replacing its
- System File.
-
- The error 0F000D most likely means that you have something pressed against
- the interrupt button on the programmer switch! (Move those books anyway,
- you're blocking precious air flow into your Mac) The error 0F0064 means
- that the startup disk you have inserted (mounted) into the disk drive is
- missing the system file.
-
- Code Meaning
- 01XXXX ROM test
- 02XXXX RAM test-bus subtest
- 03XXXX RAM test-byte write
- 04XXXX RAM test-mod3 test
- 05XXXX RAM test-address uniqueness
- 0F0001 Bus error
- 0F0002 Address error
- 0F0003 Illegal instruction (may be a damaged system file)
- 0F0004 Zero divide error
- 0F0005 Check trap-CHK instruction
- 0F0006 Overflow trap
- 0F0007 Privilege violation
- 0F0008 Trace trap
- 0F0009 Trap dispatch error
- 0F000A Line 1111 trap
- 0F000B Other trap
- 0F000C Unimplemented trap executed
- 0F000D Interrupt button on programmers switch pressed in
- 0F0064 Bad System File
- 0F0065 Bad Finder
-
- I'm no Mac super-guru. The above information was provided to me via Apple
- Technical notes and various books and manuals I've read over the years. I
- hope this helps someone.
-
- John Treble
- Schlumberger Well Services - Austin Systems Center
- Austin Texas
-
- treble@asc.slb.com "My humble, but accurate, opinion does not necessarily
- reflect that of my employer. I get full credit for my insightful and witty
- comments!"
-