Lenovo ThinkCentre M50 Hardware Maintenance Manual (HMM) - Page 101

diagnostics

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POST Error Code 201, 20X Memory data error 225 229 External cache test error 262 POST detected a base memory or extended memory type error 301 Keyboard Error 303 With an 8603 error 303 With no 8603 error 3XX Not listed above 5XX 601 602 604 And able to run diagnostics 605 POST cannot unlock the diskette drive FRU/Action 1. Run Enhanced Diagnostics Memory Test 2. Memory Module 3. System Board 1. Unsupported Memory 1. L2 Cache Memory 2. System Board 1. Run Setup. Check System Summary menu for memory. (See Chapter 5, "IBM Setup Utility program," on page 19.) 2. Run the Extended Memory Diagnostic tests. 1. Keyboard 2. Keyboard Cable 3. System Board 1. Mouse 2. Keyboard 3. Keyboard Cable 4. System Board 1. Keyboard 2. Keyboard Cable 3. System Board 1. Keyboard 2. Keyboard Cable 3. System Board 1. Video Adapter (if installed) 2. System Board 1. Diskette Drive A 2. Diskette Drive Cable 3. System Board 4. Riser card 1. Bad Diskette? 2. Verify Diskette and retry 1. Run Setup and verify diskette configuration settings 2. Diskette Drive A/B 3. Diskette Drive Cable 4. System Board 5. Riser card 1. Diskette Drive 2. Diskette Drive Cable 3. System Board 4. Riser card Chapter 7. Symptom-to-FRU Index 95

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POST
Error
Code
FRU/Action
201,
20X
Memory
data
error
1.
Run
Enhanced
Diagnostics
Memory
Test
2.
Memory
Module
3.
System
Board
225
1.
Unsupported
Memory
229
External
cache
test
error
1.
L2
Cache
Memory
2.
System
Board
262
POST
detected
a
base
memory
or
extended
memory
type
error
1.
Run
Setup.
Check
System
Summary
menu
for
memory.
(See
Chapter
5,
“IBM
Setup
Utility
program,”
on
page
19.)
2.
Run
the
Extended
Memory
Diagnostic
tests.
301
Keyboard
Error
1.
Keyboard
2.
Keyboard
Cable
3.
System
Board
303
With
an
8603
error
1.
Mouse
2.
Keyboard
3.
Keyboard
Cable
4.
System
Board
303
With
no
8603
error
1.
Keyboard
2.
Keyboard
Cable
3.
System
Board
3XX
Not
listed
above
1.
Keyboard
2.
Keyboard
Cable
3.
System
Board
5XX
1.
Video
Adapter
(if
installed)
2.
System
Board
601
1.
Diskette
Drive
A
2.
Diskette
Drive
Cable
3.
System
Board
4.
Riser
card
602
1.
Bad
Diskette?
2.
Verify
Diskette
and
retry
604
And
able
to
run
diagnostics
1.
Run
Setup
and
verify
diskette
configuration
settings
2.
Diskette
Drive
A/B
3.
Diskette
Drive
Cable
4.
System
Board
5.
Riser
card
605
POST
cannot
unlock
the
diskette
drive
1.
Diskette
Drive
2.
Diskette
Drive
Cable
3.
System
Board
4.
Riser
card
Chapter
7.
Symptom-to-FRU
Index
95