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Memory Troubleshooting Facts Memory Troubleshooting Facts

1. Memory Troubleshooting Facts Memory Troubleshooting Facts Memory problems usually are found in one of the following categories e Either more memory is installed than the system supports or the CMOS settings are wrong e Incompatible or broken modules e Improperly installed modules or dirty or defective sockets You should be able to identify the memory problems and meanings of the following errors roblem The PC boot fails and sounds a beep code Either the memory may be installed or BIOS configured improperly The PC boots but the Either a card or memory module is not seated or the system includes unsupported memory Non parity RAM is incompatible with ECC memory and SDRAM is depar emane Dank incompatible with EDO memory The POST failed to recognize all of the memory This can happen with incompatible memory installation Remember to avoid combining dual bank with single bank The PC boots but the memory If any problem is detected during system boot up check the BIOS settings memory count is incorrect Note The system will only check for memory installed in memory slots on the motherboard Memory that is on expansion cards or installed on other devices will not be counted and tested Error Messages Memory mismatch error Memory parity interrupt at x Memory address error at x Memory failure at x read y expecting Z Memory verify error at x These messages usually indicate a failing module or discrepan
2. cies between new and old memory Avoid the latter problem by not mixing new and old memory Ensure that the memory is functioning properly and is compatible with the system If the memory is good and fully compatible these error messages could mean that the motherboard has a problem Software errors include Registry error Parts of the registry are written to faulty sections of RAM Exception error A software bug can cause this type of error Software generated General protection fault A software bug can cause this type of error memory problems Page fault A software bug can cause this type of error For software errors check to see if the memory address indicated in the error is consistently the same If so check the memory Otherwise reboot the system or update the software One of the tougher detection challenges is the intermittent occurrence of error messages crashes or sudden reboots The trouble in diagnosing this situation is the number of potential problems including timing heat corrosion fluctuating power loose connections EMI or a combination of these problems Intermittent problems You should be familiar with this list of critical times when memory problems manifest themselves Memory Troubleshooting Facts e First boot up of a new computer Memory is not properly seated missing or the motherboard is defective e After a memory upgrade Ensure that the memory is compatible and was installed and configured p
3. roperly For example if system includes DIP or SIMM ensure that banks are full before placing memory in a new bank e After software installation New software requires more memory and can cause problems e After hardware installation or removal Incompletely or improperly installed hardware can cause errors that appear to be memory related

Memory Troubleshooting Facts Memory Troubleshooting Facts

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