Converting the Quanta R13 Motherboard to UMA

[Salimeh Bolboli]

This article explains how to convert the Quanta R13 motherboard (used in HP G6-1000 series laptops) to UMA mode.
In this mode, the system uses only the integrated graphics within the CPU, and the dedicated graphics card is hardware-disabled.

Many laptops in the HP G6-1000 series feature the Quanta R13 motherboard (DA0R13MB6) and a dedicated AMD GPU with chip number 216-0809024.
Over time, these chips often fail due to heat or aging, and nowadays they are difficult and expensive to replace.

Since these laptops belong to the budget and mid-range category, replacing the GPU chip is not cost-effective. Therefore, a more logical and economical solution is to disable the faulty discrete GPU and run the system in UMA mode (using only the integrated graphics).

The goals of this hardware modification are:​

• To operate the system only with the processor’s integrated GPU.
• To completely cut off power and functionality of the discrete graphics card.

Only two resistor changes are required to perform this modification:​

1. Change the board configuration setting (Configuration Strap):
   Set BOARD_ID0 to 0.
   To do this, move resistor R466 to position R451.
   This modification forces the motherboard to boot in UMA mode.
2. Disable the dedicated GPU power supply:
   Remove resistor PR97 to disconnect the PU8 (RT8208A) power controller from the circuit.
   This completely cuts off power to the discrete GPU.

After completing these two steps, the laptop will operate solely with integrated graphics, and no BIOS or software modification is required.

Photos and schematic files are attached.