Problems related to the system board can be difficult to solve because of the system boards relative complexity. So many system functions rely at least partially on the system board that certain symptoms can be masked by other symptoms.
Begin by observing the symptoms produced by boot up and operation. Observe the steps that lead to the failure and determine under what conditions the system failed. Were anay unusual operations in progress? Note any error messages or beep codes. Retry the system several times to observe the symptoms clearly. Take time to document the problem write it down.
Refer to the user manuals for the system board and peripheral units to check for configuration problems. Examine the CMOS setup entries for configuration problems. In pentium system, also check the advanced CMOS setup parameters to make certain that all the appropriate system board enabliling settings have been made.
If possible, run a software diagnostics package to narrow the possible causes. There are many free diagnostic packages, PC Check is on such utility. Remember that the microprocessor, RAM modules, ROM BIOS, CMOS battery, and possibly cache ICs are replaceable units on the system board. If enough of the system is running to perform tests on these units, you can replace them. If sysmptoms suggest that one or more of these devices may be defective, you can exchange them with a known good unit of the same type.
If teh diagnostics program indicates a number of possible bad components, replace them one at a time until you isolate the bad unit. Then insert any possible good units back into the system and check them. You also should consider the possibility of bad software when multiple filed replaceable unit(FRU) problems are indicated
SYSTEM BOARD SYMPTOMS
CONFIGURATION CHECKS
SOFTWARE CHECKS
HARDWARE CHECKS
EXCHANGING THE SYSTEM BOARD
Begin by observing the symptoms produced by boot up and operation. Observe the steps that lead to the failure and determine under what conditions the system failed. Were anay unusual operations in progress? Note any error messages or beep codes. Retry the system several times to observe the symptoms clearly. Take time to document the problem write it down.
Refer to the user manuals for the system board and peripheral units to check for configuration problems. Examine the CMOS setup entries for configuration problems. In pentium system, also check the advanced CMOS setup parameters to make certain that all the appropriate system board enabliling settings have been made.
If possible, run a software diagnostics package to narrow the possible causes. There are many free diagnostic packages, PC Check is on such utility. Remember that the microprocessor, RAM modules, ROM BIOS, CMOS battery, and possibly cache ICs are replaceable units on the system board. If enough of the system is running to perform tests on these units, you can replace them. If sysmptoms suggest that one or more of these devices may be defective, you can exchange them with a known good unit of the same type.
If teh diagnostics program indicates a number of possible bad components, replace them one at a time until you isolate the bad unit. Then insert any possible good units back into the system and check them. You also should consider the possibility of bad software when multiple filed replaceable unit(FRU) problems are indicated
SYSTEM BOARD SYMPTOMS
CONFIGURATION CHECKS
SOFTWARE CHECKS
HARDWARE CHECKS
EXCHANGING THE SYSTEM BOARD
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