IBM 8669 Hardware Maintenance Manual - Page 113
Memory-Modules Minimum requirement = 256 MB 2 banks of 128 MB, Microprocessor and VRM
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3. Remove or disconnect the following (one at a time) until you find the failure (power-on the computer and reconfigure each time). Any external devices Surge suppressor device (on the computer) Modem, printer, mouse, or non-IBM devices Each adapter Drives Memory-Modules (Minimum requirement = 256 MB (2 banks of 128 MB DIMMs)) Note: Minimum operating requirements are: a. 1 Power Supply b. Power Backplane c. System Board d. 1 Microprocessor and VRM e. 1 Terminator Card f. Memory Module (with a minimum of two 128 MB DIMMs) 4. Power-on the computer. If the problem remains, suspect the following FRUs in the order listed: Power Supply Power Backplane System Board Notes: 1. If the problem goes away when you remove an adapter from the system, and replacing that adapter does not correct the problem, suspect the System Board. 2. If you suspect a networking problem and all the system tests pass, suspect a network cabling problem external to the system. Symptom-to-FRU index 103
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