Memory Checkout
DIMM are available for increasing memory capacity.
Memory errors might stop system operation, show error
messages on the screen, or hang the system.
Use the following procedure to isolate memory problems:
1. Boot from and start PC Doctor. (See “PC Doctor
System Diagnostics” on page 51 for details.)
2. Select Memory Test - Full and/or Memory Test -
Quick.
3. Follow the instructions in the message window.
Note: Make sure that the DIMM is properly installed into
the connector. A loose connection can cause an
error.
System Programs in Flash Memory:
System
setup programs are stored in the flash memory.
Flash Memory Update:
The flash memory update
is required for the following conditions:
New versions of system programs
New features or options
Slot 1 (MB)
Slot 2 (MB)
Total Memory
(MB)
32
0
32
0
32
32
32
32
64
64
0
64
0
64
64
64
32
96
32
64
96
64
64
128
128
0
128
0
128
128
128
32
160
32
128
160
128
64
192
64
128
192
128
128
256
ThinkPad 390E
31
Summary of Contents for ThinkPad 2626
Page 1: ...S37L 5153 01 IBM Mobile Systems ThinkPad 390E 2626 Hardware Maintenance Manual March 1999 ...
Page 6: ...vi ThinkPad 390E ...
Page 9: ...Service Tools 118 Notices 119 Trademarks 119 Contents ix ...
Page 10: ...x ThinkPad 390E ...
Page 28: ...18 ThinkPad 390E ...
Page 116: ...Switch Location Keyboard Lan guage US European Japanese J2 ON OFF J3 ON ON 106 ThinkPad 390E ...
Page 130: ...IBM Part Number 00N5907 Printed in U S A S37L 5153 ð1 ...