IBM 1400 (2611) manual System Board Check, Memory Check, Note Signal

Terminal		Signal / Voltage (V dc)
3		Reserved
4		Reserved
5		Thermal
6		Sense
7		Ground
Note: Signal	lines, not used in these steps, are
for	communication between the system and
the	battery.

3.If the voltage is less than +8 V dc, recha battery pack.

If the voltage is still less than +8 V dc af recharging, replace the battery.

System Board Check

The system board performs processing functions. Thu the system board can cause processor problems. To the problem, do the following:

1.Boot from the diagnostics diskette and start Doctor program (please refer to “Running the PC Doctor Diagnostics Program” on page 135).

2.Run theSystem Board test to verify the symptom. This test verifies both the system board.

If	the	tests detect a system board problem, re
system board.
Note:	Don't	touch the keyboard and pointing device
	the	system board	(system board) test is ru
	This	may cause an	unexpected error.

Memory Check

DIMM are	available for		increasing		memory capacity.
DIMM		DIMM		Total	Memory
32MB		0MB		32MB
0MB		32MB		32MB
32MB		32MB		64MB
64MB		0MB		64MB
0MB		64MB		64MB
64MB		32MB		96MB
32MB		64MB		96MB
64MB		64MB		128MB
128MB		0MB		128MB
0MB		128MB		128MB
128MB		32MB		160MB
32MB		128MB		160MB
		ThinkPad	i Series		1400 (Part113 II)