Battery Status Lights; Specifications; Technical Specification - Dell Precision M4800 Owner's Manual

Battery Status Lights

If the computer is connected to an electrical outlet, the battery light operates as follows:
Alternately An unauthenticated or unsupported non-Dell AC adapter is attached to your laptop.
blinking amber
light and white
light
Alternately Temporary battery failure with AC adapter present.
blinking amber
light with steady
white light
Constantly Fatal battery failure with AC adapter present.
blinking amber
light
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
System Chipset
DMA Channels
Interrupt Levels
BIOS Chip (NVRAM)
74
Specification
Mobile Intel 8 Series Chipset
Enhanced DMA Controller
• Two cascaded 8237 DMA controllers
• Supports LPC DMA
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
96 Mb (12 MB)