| Symptom / Error | FRU / Action | 
| 0002 01XX / 0002 05XX Reseat System Board Memory
 | 1. System Board Memory 2. System Board
 | 
| 0002 0XXY / 0002 17XY Memory Failure
 If the 'Y' digits is in the range  'G' to 'V', suspect the model 90/95 processor board first.
 For a chart how to determine the failing module on Mod. 56/57, 76/77, 85 and 90/95 see Here ! | 1. System Board Memory,  Memory Riser Card (90), Processor Board (90/95) 2. System Board
 | 
| 0002 10XX / 0002 11XX Check Memory
 | 1. Processor Board (90/95) 2. System board Memory
 3. Memory Riser Card (90)
 4. System Board
 | 
| 0002 11CZ Missing / unsupported Memory Module.
 No module installed or one which does not supply the required Presence Detect coding
 | 1. Memory Module 2. System Board
 3. 486SLC Processor Upgrade
 See also here !
 | 
| 0002 14XX / 0002 15XX 0002 16XX / 0002 21XX
 0002 26XX / 0002 40XX
 0002 35XX / 0002 41XX
 Check memory.
 It might be the wrong type or wrong speed.
 | 1. System Board Memory, Memory Riser Card (90) 2. System Board, Processor Board (90/95)
 3. Bus Adapter
 | 
| 0002 21XX ROM to RAM parity error
 | 1. System Board | 
| 0002 31XX | 1. Expanded Memory Option | 
| 0002 35XX Single-Bit (correctable) ECC Memory error
 | 1. Processor / System Board 2. System Board Memory
 | 
| 0002 4300 / 0002 4400 | 1. Processor Board (90/95) | 
| 0002 4500 / 0002 4600 Check memory
 | 1. Processor Board 2. Memory Riser Card (90)
 3. System Board
 4. System Board Memory
 | 
| 0002 4700 | 1. Processor Board (90/95) | 
| 0002 51XX Memory location changed on the memory expansion option
 | Information only | 
| 0002 52XX | 1. Processor Board (90/95) 2. System Board
 | 
| 0002 5300 / 0002 5400 | 1. Processor Cache (90/95) 2. Processor Board
 | 
| 0002 55XX Check Memory
 | 1. System Board Memory 2. System Board
 | 
| 0002 9000 Unsupported memory combination detected
 | 1. Correct the unsupported combination of ECC and parity memory modules. Run Automatic Configuration, then rerun Advanced Diagnostics | 
| 0002 91XX / 0002 92XX 0002 93XX / 0002 94XX
 Checksum value mismatch
 | 1. Run Automatic Configuration then rerun Advanced Diagnostics | 
| 0002 95XX / 0002 96XX Check memory for an unsupported configuration or modules
 | 1. System Board Memory | 
| 0002 9800 Checksum value mismatch
 | 1. System Board Memory Run Automatic Configuration then rerun Advanced Diagnostics
 | 
| 0002 XX00 not listed above
 | 1. 486DX33 Upgrade (70/80) |