ASUS ROG G73SW - MXM GPU Upgrade Mod Request (Quadro M2000M)

[KIRA777-TECH]

Target Laptop: ASUS ROG G73SW (Intel HM65 Chipset / Sandy Bridge)

Target GPU: NVIDIA Quadro M2000M (Maxwell Architecture - MXM 3.0a)

Current File Provided: bios.bin (2.5 MB - Region-only dump extracted via Intel FPT v7 under WinPE)

Required Modifications / Required Patches:

1. MXM Whitelist Removal & Subsystem ID Bypass

Issue: The stock ASUS BIOS has a strict hardware whitelist that rejects unauthorized MXM cards during POST, causing a black screen or boot loops.

Modification: Completely remove or bypass the MXM GPU Whitelist check within the AMI Aptio modules. Ensure the motherboard accepts the Quadro M2000M (Device ID: 13B0) natively without system-side handshaking rejections.

2. Fix ACPI Power Throttling / P-States Lock (Fix P-State 10 Error)

Issue: Legacy ASUS ROG motherboards (G73/G74 series) trip a safety thermal/power throttling mechanism when a newer generation Maxwell/Pascal card is installed. The Embedded Controller (EC) cannot read the temperature or power sensors properly, forcing the system into a permanent low-power state (P-State 10 / lowest CPU multiplier, e.g., 800MHz).

Modification: Patch the ACPI tables (DSDT / SSDT) to bypass or decouple the GPU thermal/power alert pin from the EC throttling loop. Disable the enforced BD PROCHOT or power-limit flags triggered by an unrecognized MXM sensor to allow both the CPU and GPU to boost to their full stock frequencies.

3. VGA Option ROM / GOP Driver Integration

Issue: The original BIOS modules only support old Fermi architecture legacy Option ROMs.

Modification: Update or insert the appropriate legacy VGA Option ROM modules (and UEFI GOP drivers if applicable) to ensure full native display initialization during boot. Note: The GPU currently has a modified HP vBIOS that outputs basic video, but system BIOS integration is required for stability.

4. Unlock Hidden Advanced Menus (Optional but Recommended)

Modification: Unlock the hidden "Advanced" and "Chipset" menus in the AMI Aptio firmware setup layout. This will allow manual overriding of thermal parameters, PCIe Link Speeds, and Intel SpeedStep/Throttling settings in case further troubleshooting is required.

Flash Instructions for Developer Context:

Due to the Flash Descriptor Lock (Error 26) on the full 4MB chip, this dump was taken using the -bios command. The modification must keep the structure intact so it can be flashed back strictly to the BIOS region using:

fptw64.exe -bios -f bios_patched.bin

 

MY GITHUB : https://github.com/KIRA777-TECH/-Project-Log-Attempting-Maxwell-Quadro-M2000M-on-ASUS-G73SW-Breaking-the-Legacy-BIOS-LVDS-Barrier/issues/1

 

MY BIOS : https://mega.nz/file/f7gjQBSL#JPTPzsUIz1L38f-N7DAUd4l3ZCzoBIeWILIdDVO5tnc
https://mega.nz/file/f7gjQBSL#JPTPzsUIz1L38f-N7DAUd4l3ZCzoBIeWILIdDVO5tnc