Lenovo ThinkCentre A50 Hardware Maintenance Manual - Page 68
Diagnostic
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Diagnostic Error Code 001-199-XXX System test failed, cause unknown 001-250-XXX System ECC error 001-254-XXX 001-255-XXX 001-256-XXX 001-257-XXX System DMA error 001-260-XXX 001-264-XXX System IRQ error 001-268-XXX System IRQ1 failure 001-269-XXX System IRQ2 failure 001-270-XXX System IRQ3 failure 001-271-XXX System IRQ4 failure 001-272-XXX System IRQ5 failure 001-273-XXX System IRQ6 (diskette drive) failure 001-274-XXX System IRQ7 failure 001-275-XXX System IRQ8 failure 001-276-XXX System IRQ9 failure 001-277-XXX System IRQ10 failure 001-278-XXX System IRQ11 failure 001-279-XXX System IRQ12 failure 001-280-XXX System IRQ13 failure 62 Hardware Maintenance Manual FRU/Action 1. Go to "Undetermined problems" on page 88 2. Flash the system and re-test 3. Replace component under function test System board System board System board 1. Device on IRQ1 2. System board 1. Device on IRQ2 2. System board 1. Device on IRQ3 2. System board 1. Device on IRQ4 2. System board 1. Device on IRQ5 2. System board 1. Diskette Cable 2. Diskette drive 3. System board 1. Device on IRQ7 2. System board 1. Device on IRQ8 2. System board 1. Device on IRQ9 2. System board 1. Device on IRQ10 2. System board 1. Device on IRQ11 2. System board 1. Device on IRQ12 2. System board 1. Device on IRQ13 2. System board