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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting
2-12 [CONFIDENTIAL] PORTÉGÉ M500 Maintenance Manual (960-559)
S3V output
Error code Meaning
40h S3V voltage is 3.47V or less when the computer is powered on/off.
45h S3V voltage is under 3.14V in normal conditions.
46h S3V voltage is under 3.14V when the computer is booting up.
E5V output
Error code Meaning
50h E5V voltage is over 6.00V when the computer is powered on/off.
51h E5V voltage is under 4.50V when the computer is powered on.
52h E5V voltage is under 4.50V when the computer is booting up.
54h E5V voltage is under 4.50V when EV power is maintained.
E3V output
Error code Meaning
60h E3V voltage is over 3.96V when the computer is powered on/off.
61h E3V voltage is under 2.81V when the computer is powered on.
62h E3V voltage is under 2.81V when the computer is booting up.
64h E3V voltage is under 2.81 V when EV power is maintained.
1R5-E1V output
Error code Meaning
70h 1R5-E1V voltage is over 1.80V when the computer is powered on/off.
71h 1R5-E1V voltage is under 1.275V when the computer is powered on.
72h 1R5-E1V voltage is under 1.275V when the computer is booting up.
74h 1R5-E1V voltage is under 1.275V when EV power is maintained.