Samsung NP-R40 plus (Firenze2-R)

Samsung NP-R40 Plus Motherboard (Firenze2-R) Schematics & BIOS

Motherboard Specifications

The Firenze2-R is the internal motherboard designation for the classic Samsung NP-R40 Plus laptop series. This board represents an earlier era of laptop architecture, often utilizing Intel Core 2 Duo processors paired with an ATI Radeon chipset (such as the Radeon Xpress 200M/1250). It remains a popular board for technicians learning trace repairing and vintage laptop restoration.

• Brand / Model: Samsung NP-R40 Plus
• Motherboard Part Number: Firenze2-R (Rev 1.0)
• Processor Support: Intel Core 2 Duo / Pentium Dual-Core
• Memory Support: DDR2 RAM

Common Chip-Level Faults & Repair Notes

When working on the Samsung NP-R40 Plus (Firenze2-R), be aware of these common failure points due to its age:

• Graphics/Chipset Failure: The ATI chipset on this board is prone to failure due to long-term heat exposure. Reballing or replacing the BGA chip is often necessary if you get no display but the fan spins.
• Degraded Capacitors: Due to the age of the board, electrolytic capacitors may have dried out, causing random freezing or sudden power loss.
• No Power: Always check the primary 19V rail near the DC jack. The protection MOSFETs on older Samsung boards often fail.

Free Download Section

1. Samsung NP-R40 Plus (Firenze2-R) Schematic Diagram (.PDF)

Trace power rails, component pins, and IC communication lines with the full schematic.

Download Schematics Free

2. Samsung NP-R40 Plus (Firenze2-R) Boardview File

A boardview file is extremely helpful for locating test points on older boards where silk screening might be sparse.

Board View Download Free (Coming soon)

If anyone has this board view file, please drop the link in the comments below!

Need BoardView Software? Download it Free Here.

3. Samsung NP-R40 Plus Clean BIOS + EC Bin File

Essential for fixing corrupted firmware resulting in no display or looping restarts.

⚠️ Always remember: Create a backup of your original BIOS chip before programming the new bin file so you can safely revert if necessary.

BIOS + EC Bin Download Free (Coming soon)

lenovo_g500_compal_la-9632p_r1.0

Lenovo G500 Motherboard (Compal LA-9632P Rev 1.0) Schematics & BIOS Bin

Motherboard Specifications

The Compal LA-9632P (Rev 1.0) is the primary motherboard used in the Lenovo G500 laptop series. This board is built around the Intel HM76 Express Chipset and typically supports Intel 3rd Generation Core i3, i5, and i7 processors (Ivy Bridge). Some variations include discrete AMD Radeon graphics (like the HD 8570M or 8750M).

• Brand / Model: Lenovo G500
• Motherboard Part Number: Compal LA-9632P
• PCB Revision: Rev 1.0
• Chipset: Intel HM76

Common Chip-Level Faults & Repair Notes

If you have a dead or malfunctioning Lenovo G500 (LA-9632P), here are key areas to inspect:

• No Power (Dead): Check the DC-IN MOSFETs and the main 19V rail (B+). Short circuits in ceramic capacitors on the 19V line are common.
• 3.3V / 5V Standby: Ensure the SY8208B/SY8208C standby ICs are outputting correct voltages. A hot standby IC usually points to a shorted KBC/EC (KB9012QF).
• No Display: Very often linked to corrupted main BIOS or EC firmware. Programming the KB9012 EC and main BIOS is a standard fix.

Free Download Section

1. Lenovo G500 (LA-9632P) Schematic Diagram (.PDF)

Track component pins, power sequences, and trace layouts with this complete schematic PDF.

Download Schematics Free

2. Lenovo G500 (LA-9632P) Boardview File

Find the exact physical location of any capacitor, resistor, or IC on the motherboard.

Board View Download Free (Coming soon)

If anyone has this board view file, please drop the link in the comments below!

Need BoardView Software? Download it Free Here.

3. Lenovo G500 Clean BIOS + EC Bin File

Dump files for the main BIOS and the KB9012 EC. Essential for fixing no-power, no-display, or corrupted firmware issues.

⚠️ Always remember: Create a backup of your original BIOS chip before programming the new bin file so you can safely revert if necessary.

Download BIOS + EC Bin Free

Toshiba Satellite C850 C855 - INVENTEC DAKAR10F DAKAR10FG - 6050A2491301-MB-A02 MP - 20110905

Toshiba Satellite C850 / C855 (Inventec Dakar10F) Schematics & BIOS Bin

Motherboard Specifications

The Inventec DAKAR10F / DAKAR10FG is a very common motherboard found inside the Toshiba Satellite C850 and C855 models. This board typically features Intel's HM70 or HM76 chipset, supporting Intel 2nd and 3rd Generation processors (Sandy Bridge / Ivy Bridge), and uses standard DDR3 memory.

• Brand / Model: Toshiba Satellite C850 / C855
• Manufacturer / Code: Inventec DAKAR10F / DAKAR10FG
• Part Number: 6050A2491301-MB-A02 MP
• Chipset: Intel HM70 / HM76

Common Chip-Level Faults & Repair Notes

Before replacing the entire motherboard on a Toshiba C850 / C855, check these frequent failure points:

• Corrupted BIOS: Extremely common on this series. The laptop may power on with a blank screen, or the fan will spin at 100% with no POST. A BIOS reflash (file provided below) often brings it back to life.
• HM70/HM76 Chipset Failure: If the laptop powers on for exactly 30 minutes and then shuts off, you might have an HM70 chipset paired with an unsupported Core i3/i5/i7 (Intel anti-theft restriction) or a failing PCH.
• No Power (19V Short): Inspect the ceramic capacitors around the CPU VRM and main power rail. A shorted capacitor will trigger the charger's protection circuit.

Free Download Section

1. Toshiba Satellite C850 / C855 (Inventec Dakar10F) Schematic Diagram (.PDF)

Analyze the power sequence and track down board components with the complete schematic.

Download Schematics Free

2. Toshiba Satellite C850 / C855 (Inventec Dakar10F) Boardview File

Quickly locate any resistor, capacitor, or test point on both sides of the motherboard.

Download Boardview Free

Need BoardView Software? Download it Free Here.

3. Toshiba Satellite C850 / C855 Clean BIOS + EC Bin File

A corrupt BIOS can cause a "no display" issue even if the hardware is fine. Programming a clean BIOS is a crucial troubleshooting step.

⚠️ Always remember: Create a backup of your original BIOS chip before programming the new bin file so you can safely revert if necessary.

Download BIOS Bin Free