Lenovo Y530 Y530 User Guide V1.0 - Page 67

Lenovo IdeaPad Y530 UG V1.0_en.book Page 58 Tuesday, June 3, 2008 1:48 PM Chapter 4. Troubleshooting „ Sleep or Hibernation Problems The computer enters sleep mode unexpectedly. If the processor overheats, the computer automatically enters sleep mode to allow the computer to cool and to protect the processor and other internal components. Check the settings for sleep mode. The computer enters sleep mode (the sleep indicator turns on) immediately after Power-on self-test (POST). Make sure that: ƒ The battery is charged. ƒ The operating temperature is within the acceptable range. See "Specifications" on page 116. If the battery is charged and the temperature is within range, have the computer serviced. The critical low-battery error message appears, and the computer immediately turns off. The battery power is getting low. Connect the AC adapter to the computer, or replace the battery with a fully charged one. The computer does not return from sleep mode, or the sleep indicator stays on and the computer does not work. If the computer does not return from sleep mode, it may have entered hibernation mode automatically because the battery is depleted. Check the sleep indicator. 58