Dell Precision M4800 (Late 2013) - Manual (Page 74)

Battery Status Lights
If the computer is connected to an electrical outlet, the battery light operates as follows:
Alternately
blinking amber
light and white
light An unauthenticated or unsupported non-Dell AC adapter is attached to your laptop.
Alternately
blinking amber
light with steady
white light Temporary battery failure with AC adapter present.
Constantly
blinking amber
light Fatal battery failure with AC adapter present.
Light off Battery in full charge mode with AC adapter present.
White light on Battery in charge mode with AC adapter present.
Technical Specification
NOTE: Offerings may vary by region. For more information regarding the configuration of your computer, click Start
(Start icon) → Help and Support, and then select the option to view information about your computer.
Table 16. System Information
Feature Specification
System Chipset Mobile Intel 8 Series Chipset
DMA Channels Enhanced DMA Controller
• Two cascaded 8237 DMA controllers
• Supports LPC DMA
Interrupt Levels Interrupt Controller
• Supports up to eight legacy interrupt pins
• Supports PCI 2.3 Message Signaled
Interrupts
• Two cascaded 8259 with 15 interrupts
• Integrated IO APIC capability with 24 interrupts
• Supports Processor System Bus interrupt delivery
BIOS Chip (NVRAM) 96 Mb (12 MB)
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