IBM 360X (2620) Laptop User Manual


 
Memory errors might stop system operations, show error
messages on the screen, or hang the system. The
computer detects memory parity errors but does not
correct them.
Use the following procedure to isolate memory problems.
1. Check whether or not the memory card use parity or
non-parity.
Note: Installing a non-parity memory card causes
parity errors when parity checking is enabled.
If the non-parity memory card is installed,
disable the parity check through the
Easy-Setup configuration screen.
2. Make sure that the memory card is fully seated in the
connector. A loose connection can cause an error.
3. Power-off the computer and remove the IC DRAM
card, or DIMM card from its slot (if installed).
4. Press and hold the F1 key; then power-on the
computer. Hold the F1 key down until the
Easy-Setup screen appears.
5. Select Test and press enter.
6. Select Memory and press enter to run the memory
test on base memory. If an error appears, replace
the memory card.
7. Power-off the computer and reinstall the IC DRAM
card or DIMM card; then power-on the computer.
Verify the memory size; then test the memory. If an
error appears, replace the IC DRAM card or the
DIMM card.
If memory problems occur intermittently, use the loop
option to repeat the test. When the test detects an error,
IC DRAM Displayed Value
0MB 7808KB
2MB 9856KB
4MB 11904KB
8MB 16000KB
16MB 24192KB
DIMM Displayed Value
0MB 7808KB
4MB 11904KB
8MB 16000KB
12MB 20096KB
16MB 24192KB
20MB 28288KB
24MB 32384KB
32MB 40576KB
318 IBM Mobile Systems HMM