IBM THINKPAD 365C/CD (2625), Hardware Maintenance Manual

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Symptoms (Verified) Go to
Other symptoms (such
as LCD display
problems). “Symptom-to-FRU
Index” on page 279,
and then use the Other
Symptoms table.
Symptoms cannot be
recreated. (Intermittent
problems.) Use the customer
reported symptoms and
go to “Symptom-to-FRU
Index” on page 279.
Memory Checkout
DIMM cards are available for increasing memory capacity.
Memory errors might stop system operations, show error
messages on the screen, or hang the system.
Use the following procedure to isolate memory problems.
Note
Make sure that the DIMM card is fully installed into the
connector. A loose connection can cause an error.
1. Power off the computer and remove the DIMM card
from its slot (if installed).
2. Press and hold the F1 key; then power on the
computer. Hold the F1 key down until the
Easy-Setup screen appears.
3. Select Test and press Enter.
4. Select Memory and press Enter to run the memory
test on base memory. If an error appears, replace
the system board.
5. Power off the computer and reinstall the DIMM card;
then power on the computer. Verify the memory size;
then test the memory. If an error appears, replace
the DIMM card.
If memory problems occur intermittently, use the loop
option to repeat the test. When the test detects an error,
an error log is printed on the printer connected to the
parallel port. See “Error Log” on page 293 for more
information.
System Programs in Flash Memory:
System setup
programs and diagnostic tests are stored in flash memory.
DIMM Displayed Value
No DIMM installed 7808KB
8MB 16000KB
16MB 24192KB
32MB 40576KB
ThinkPad 560 (2640)
269