Dell Precision M4700 (Mid 2012) - Manual (Page 69)

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 15. System Information
Feature Specification
System Chipset Mobile Intel QM77 Express Chipset
DMA Channels two 82C37 DMA controllers with seven independently programmable
channels
Interrupt Levels Integrated I/O APIC capability with 24 interrupts
BIOS Chip (NVRAM) 96 Mb (12 MB)
Table 16. Processor
Feature Specification
Processor type
• Intel Core i5 and i7 Dual Core
• Intel Core i7 Quad Extreme
• Intel Core i7 Quad Core
L1 cache Up to 32 KB cache depending on processor type
L2 cache Up to 256 KB cache depending on processor type
L3 cache Up to 8 MB cache depending on processor type
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