TP 765D/L - Memory Checkout

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Service Hints & Tips

Document ID: GKEY-3JMKJD

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TP 765D/L - Memory Checkout

Applicable to: World-Wide

Memory Checkout

DIMMs are available for increasing memory capacity.
Note: The Models 765L and 765D have a dip switch on the DIMM adapter card.
If you are installing a 64-MB 2-bank DIMM, move the dip switch to the left.
The memory (8 MB) on the DIMM adapter card is disabled.
You can install a 64-MB 2-bank DIMM in slot 2.
If you try to install the it in slot 1, it will not be recognized as 64MB DIMM.

Dip Switch

Slot 1

Slot 2

Total Memory

Displayed Value

Right

16MB

0MB

32MB

32384KB

8MB

40MB

40576KB

16MB

48MB

48768KB

32MB

64MB

65152KB

32MB

32MB

80MB

81536KB

Left

16MB

64MB

88MB

89728KB

32MB

64MB

104MB

106112KB

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 adapter card is fully installed into the
connector. A loose connection can cause an error.

1.

Power off the computer and remove the DIMM adapter 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 adapter card; then power on the computer. Verify the memory size; then test the memory. If an error appears, replace the DIMM adapter 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 -- Related Service Information -- for more information.

System Programs in Flash Memory:
System setup programs and diagnostic tests are stored in flash memory.

Flash Memory Update: A flash memory update is required for the following conditions:
New versions of system programs
New features or options

To update the flash memory, do the following:

1.

Get the appropriate diskette containing the update.

2.

Insert the System Program Service diskette into drive A, and power on the computer with ac power and a fully charged battery.

3.

Select Update system programs from the menu.

Search Keywords

Hint Category

Hardware Maintenance Information, Memory

Date Created

03-07-97

Last Updated

07-04-98

Revision Date

12-03-99

Brand

IBM ThinkPad

Product Family

ThinkPad 765L, ThinkPad 765D

Machine Type

9546, 9547

Model

Various

TypeModel

Retain Tip (if applicable)

Reverse Doclinks
and Admin Purposes

Dip Switch	Slot 1	Slot 2	Total Memory	Displayed Value
Right	16MB	0MB	32MB	32384KB
		8MB	40MB	40576KB
		16MB	48MB	48768KB
		32MB	64MB	65152KB
	32MB	32MB	80MB	81536KB
Left	16MB	64MB	88MB	89728KB
	32MB	64MB	104MB	106112KB

1.	Power off the computer and remove the DIMM adapter 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 adapter card; then power on the computer. Verify the memory size; then test the memory. If an error appears, replace the DIMM adapter card.

1.	Get the appropriate diskette containing the update.
2.	Insert the System Program Service diskette into drive A, and power on the computer with ac power and a fully charged battery.
3.	Select Update system programs from the menu.

	Search Keywords
	Hint Category	Hardware Maintenance Information, Memory
	Date Created	03-07-97
	Last Updated	07-04-98
	Revision Date	12-03-99
	Brand	IBM ThinkPad
	Product Family	ThinkPad 765L, ThinkPad 765D
	Machine Type	9546, 9547
	Model	Various
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes