IBM B50, Руководство по обслуживанию

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Step 1240-1
1. Ensure that the diagnostics and the operating system are shut down.
2. Power off the system.
3. Remove and reinstall any installed memory modules.
4. Power on the system.
Does the system stop with a memory checkpoint displayed on the operator
panel?
NO Reseating the memory modules has corrected the problem. Go to
"
MAP
0410: Repair Checkout
"
in Diagnostics Information for Multiple Bus
Systems.
YES If there is only one memory module installed, go to “Step 1240-3” on
page 2-11.
If there is more than one memory module installed, go to “Step 1240-2.”
Step 1240-2
1. Power off the system.
2. Remove all but one of the installed memory modules. Record the position of the
memory modules removed so that when instructed to reinstall them, they can be
installed in their original positions.
3. Power on the system.
Does the system stop with a memory checkpoint displayed on the operator
panel?
NO Repeat this step until all the memory modules are installed and tested.
If all the memory modules have been installed, reseating the memory
modules has corrected the problem.
Go to
"
MAP 0410: Repair Checkout
"
in Diagnostics Information for
Multiple Bus Systems.
YES Go to “Step 1240-3” on page 2-11.
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7046 Model B50 Service Guide