Lenovo ThinkStation C20 Hardware Maintenance Manual - ThinkStation C20/C20x - Page 55
System RTC Century byte error, System RTC Alarm failure - ram
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Diagnostic Error Code 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 001-281-XXX System IRQ14 (hard disk drive) failure 001-282-XXX System IRQ15 failure 001-286-XXX 001-287-XXX 001-288-XXX System Timer failure 001-292-XXX System CMOS RAM error 001-293-XXX System CMOS Battery 001-298-XXX System RTC date/time update failure 001-299-XXX System RTC periodic interrupt failure 001-300-XXX System RTC Alarm failure 001-301-XXX System RTC Century byte error 005-000-XXX Video Test Passed 005-00X-XXX Video error 005-010-XXX 005-011-XXX 005-012-XXX 005-013-XXX Video Signal failure FRU/Action 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 1. Hard disk drive cable 2. Hard disk drive 3. System board 1. Device on IRQ15 2. System board System board 1. Run the Setup Utility program and re-test. 2. System board 1. CMOS Battery 2. System board 1. Flash the system. See "Updating (flashing) the BIOS" on page 229. 2. System board System board System board 1. Flash the system. See "Updating (flashing) the BIOS" on page 229. 2. System board No action 1. Video card, if installed 2. System board 1. Video card, if installed 2. System board Chapter 8. Symptom-to-FRU Index 49