IBM NetVista Hardware Maintenance Manual

Also see for NetVista: Hardware Maintenance Manual Hardware Maintenance Manual Hardware maintenance guide Hardware Maintenance Manual Hardware maintenance guide

Contents

RIMM sizes of 64 MB, 128 MB, 256 MB, and 512 MB are acceptable. RIMM sockets,within each memory channel, can be filled in any order. However, both memorychannels must be populated the same. ECC or non-ECC, RAMBUS dynamicrandom access memory (RDRAM) are supported. If ECC and non-ECC areinstalled together, all memory will function as non-ECC.Note: Mixed RIMM speeds will run at the lower speed.RIMM diagnostic approachIdentify any Beep or POST codes. See Chapter 7, “Symptom-to-FRU index”, onpage 47.Use the IBM PC Enhanced Diagnostics program to run memory tests. See “IBMEnhanced Diagnostics” on page 8.Procedures to determine memory errors1. If a memory error occurs, and the system is operational, run memorydiagnostics.2. If a memory error occurs, and the system is not operational:a. Replace one RIMM module at a time until the system comes up.Note: All unused RIMM sockets must have a C-RIMM installed. Both memory channelsmust be populated the same.b. Run memory diagnostics.c. Replace the other RIMMs and run diagnostics again to identify the failingRIMM.Procedures to determine memory errors:1. If a memory error occurs, and the system is operational, run memorydiagnostics.2. If a memory error occurs, and the system is not operational:a. Replace one RIMM module at a time until the system comes up.Note: All unused RIMM sockets must have a C-RIMM installed.b. Run memory diagnostics.c. Install the other RIMM and run diagnostics again to identify the failingRIMM.Recovering your operating system and preinstalled softwareThis section contains instructions for recovering BIOS, device drivers, operatingsystem, and other support software.Notes:1. The Product Recovery program is provided on your computer to assist youwith recovery operations.Important: The Product Recovery program is preinstalled on the hard diskdrive that comes with your IBM computer and is designed to be hidden fromview to protect the program from accidental damage.Chapter 3. Diagnostics 13