052 (continued)
DOES THE SYSTEM BOARD HAVE EIGHT 30-PIN MEMORY SIMMS
INSTALLED?
Yes No
053
Go to Step 056.
054
– Power off the system unit.
– Remove one bank of four SIMM cards.
– Power on the system unit.
IS THE SCREEN DARK?
Yes No
055
Swap SIMM cards one at a time with a known good SIMM card until
the symptom goes away. Replace the failing SIMM card.
Note: You could have an unsupported SIMM card installed.
056
(From step 053)
IS YOUR SYSTEM BOARD A 486SX WITH 30-PIN MEMORY SIMMS, AND
DOES IT HAVE VIDEO RAM INSTALLED IN SOCKET LOCATIONS U31,
U36, AND U37 (FOR LEVEL 1) OR U29, U30, U31, AND U32 (FOR LEVEL
2)?
See the “System Board Layouts” on pages 5-2 through 5-13.
Yes No
057
(Step 057 continues)
Diagnostic Information 2-107
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