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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures
MCH1R2-P1V output
Error code Meaning
C0h MCH1R2-P1V voltage is over 1.44V when the computer is powered
on/off.
C1h MCH1R2-P1V voltage is 1.02V or less when the computer is powered
on.
C2h MCH1R2-P1V voltage is 1.02V or less when the computer is booting
up.
C3h MCH1R2-P1V voltage is 1.02V or more when the computer is
powered off.
C4h MCH1R2-P1V voltage is 1.02V or less when the computer is
suspended.
1R25-P1V output
Error code Meaning
D0h 1R25-P1V voltage is over 1.50V when the computer is powered on/off.
D1h 1R25-P1V voltage is 1.063V or less when the computer is powered
on.
D2h 1R25-P1V voltage is 1.063V or less when the computer is booting up.
D3h 1R25-P1V voltage is 1.063V or more when the computer is powered
off.
D4h 1R25-P1V voltage is 1.063V or less when the computer is suspended.
2R5-B2V output
Error code Meaning
E0h 2R5-B2V voltage is over 3.00V when the computer is powered on/off.
E1h 2R5-B2V voltage is 2.125V or less when the computer is powered on.
E2h 2R5-B2V voltage is 2.125V or less when the computer is booting up.
E3h 2R5-B2V voltage is 2.125V or more when the computer is powered off.
E4h 2R5-B2V voltage is 2.125V or less when the computer is suspended.
TECRA M2 Maintenance Manual (960-468) 2-11