Lenovo NetVista Hardware Maintenence Manual for Netvista 6838 and 6848 systems - Page 78

LCCM Hybrid RPL, check startup, External Device Self-Test OK?

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Message/Symptom FRU/Action Flashing cursor with an otherwise blank display. 1. System Board 2. Primary Hard Disk Drive 3. Hard Disk Drive Cable 4. Riser card Incorrect memory size during POST 1. Run the Memory tests 2. Memory Module 3. System Board ″Insert a Diskette″ icon appears with a known-good diagnostics diskette in the first 3.5-inch diskette drive. 1. System Board 2. Diskette Drive Cable 3. Riser card 4. Network Adapter Intensity or color varies from left to right of 1. Display characters and color bars 2. System Board No power or fan not running 1. See "Power supply" on page 44. Non-system disk or disk error-type message with a known-good diagnostic diskette. 1. Diskette Drive 2. System Board 3. Diskette Drive Cable 4. Riser card Other display symptoms not listed above (including blank or illegible display) 1. Display 2. System Board Power-on indicator or hard disk drive in-use 1. Power Supply light not on, but computer works correctly 2. System Board 3. LED Cables Printer problems 1. Printer Program loads from the hard disk with a known-good diagnostics diskette in the first 3.5-inch diskette drive 1. Run Setup 2. Diskette Drive 3. Diskette Drive Cable 4. System Board 5. Riser card 6. Power Supply RPL computer cannot access programs from its own hard disk. 1. If network administrator is using LCCM Hybrid RPL, check startup sequence: a. First device - network b. Second device - hard disk 2. Hard disk drive RPL computer does not RPL from server 1. Check startup sequence 2. Check the network adapter LED status Serial or parallel port device failure (system board port) 1. External Device Self-Test OK? 2. External Device 3. Cable 4. System Board 70 IBM NetVista Type 6838, 6848: Hardware Maintenance Manual

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Message/Symptom
FRU/Action
Flashing cursor with an otherwise blank
display.
1.
System Board
2.
Primary Hard Disk Drive
3.
Hard Disk Drive Cable
4.
Riser card
Incorrect memory size during POST
1.
Run the Memory tests
2.
Memory Module
3.
System Board
″
Insert a Diskette
″
icon appears with a
known-good diagnostics diskette in the first
3.5-inch diskette drive.
1.
System Board
2.
Diskette Drive Cable
3.
Riser card
4.
Network Adapter
Intensity or color varies from left to right of
characters and color bars
1.
Display
2.
System Board
No power or fan not running
1.
See “Power supply” on page 44.
Non-system disk or disk error-type message
with a known-good diagnostic diskette.
1.
Diskette Drive
2.
System Board
3.
Diskette Drive Cable
4.
Riser card
Other display symptoms not listed above
(including blank or illegible display)
1.
Display
2.
System Board
Power-on indicator or hard disk drive in-use
light not on, but computer works correctly
1.
Power Supply
2.
System Board
3.
LED Cables
Printer problems
1.
Printer
Program loads from the hard disk with a
known-good diagnostics diskette in the first
3.5-inch diskette drive
1.
Run Setup
2.
Diskette Drive
3.
Diskette Drive Cable
4.
System Board
5.
Riser card
6.
Power Supply
RPL computer cannot access programs from
its own hard disk.
1.
If network administrator is using
LCCM Hybrid RPL, check startup
sequence:
a.
First device - network
b.
Second device - hard disk
2.
Hard disk drive
RPL computer does not RPL from server
1.
Check startup sequence
2.
Check the network adapter LED status
Serial or parallel port device failure (system
board port)
1.
External Device Self-Test OK?
2.
External Device
3.
Cable
4.
System Board
70
IBM NetVista Type 6838, 6848: Hardware Maintenance Manual