Lenovo ThinkPad 390X Hardware Maintenance Manual (March 1999): ThinkPad 390E o - Page 41

Memory Checkout, System Programs in Flash Memory, Flash Memory Update

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Memory Checkout DIMM are available for increasing memory capacity. Slot 1 (MB) 32 0 32 64 0 64 32 64 128 0 128 32 128 64 128 Slot 2 (MB) 0 32 32 0 64 32 64 64 0 128 32 128 64 128 128 Total Memory (MB) 32 32 64 64 64 96 96 128 128 128 160 160 192 192 256 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 ThinkPad 390E 31

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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