Dell Inspiron 3452 (Iris BSW MB 14279-1) Schematics, Boardview & BIOS
Motherboard Specifications
The Iris BSW MB 14279-1 (REV: A00) is the main logic board found in the Dell Inspiron 3452 (and often the 15-inch 3552 variant). This board is based on the highly integrated Intel Braswell (BSW) SoC architecture, meaning the CPU, GPU, and chipset are combined into a single BGA chip (typically a Celeron or Pentium processor).
- Brand / Model: Dell Inspiron 3452
- Board Number: Iris BSW MB 14279-1
- Revision: REV: A00
- Architecture: Intel Braswell (SoC)
Common Chip-Level Faults & Repair Notes
Because the Braswell architecture is a highly integrated SoC design, troubleshooting the Dell Inspiron 3452 requires specific attention:
- Dead SoC (System-on-Chip): The CPU/Chipset combo is prone to failure from thermal stress or power surges on the USB ports (since the USB controller is integrated into the SoC). If the main 3.3V/5V rails are present but there is a dead short on the CPU VCORE, the SoC must be replaced.
- BIOS Corruption (No Display / 7 Beeps): Very common on Dell laptops. A corrupt BIOS or failing CMOS battery will prevent POST. Reprogramming the BIOS chip with a clean bin file is the first diagnostic step.
- Power Sequence Issues: Use the provided boardview to trace the embedded controller (EC) signals (like ACIN, RSMRST#, and PWRBTN#) to verify power logic.
Free Download Section
1. Dell Inspiron 3452 (Iris BSW MB 14279-1) Schematic Diagram (.PDF)
Trace the Intel Braswell SoC power sequence and diagnose charging circuits.
2. Dell Inspiron 3452 (Iris BSW MB 14279-1) Boardview File
Quickly locate test points, resistors, and capacitors on the 14279-1 motherboard.
Need BoardView Software? Download it Free Here.
3. Dell Inspiron 3452 (Iris BSW MB 14279-1) Clean BIOS Bin
Resolve POST failures and beep code errors by flashing a clean BIOS file directly to the EEPROM.
⚠️ Always remember: Create a backup of your original BIOS chip before programming the new bin file so you can safely revert if necessary.
