diff --git a/Controllers/PNYGPUController/PNYGPUControllerDetect.cpp b/Controllers/PNYGPUController/PNYGPUControllerDetect.cpp
index 5e390b06..b2990c8b 100644
--- a/Controllers/PNYGPUController/PNYGPUControllerDetect.cpp
+++ b/Controllers/PNYGPUController/PNYGPUControllerDetect.cpp
@@ -59,5 +59,6 @@ REGISTER_I2C_PCI_DETECTOR("Palit 3080Ti Gamerock",              DetectPNYGPUCont
 REGISTER_I2C_PCI_DETECTOR("Palit 3090",                         DetectPNYGPUControllers,    NVIDIA_VEN, NVIDIA_RTX3090_DEV,         PALIT_SUB_VEN,  PALIT_RTX3090_SUB_DEV,                      0x49);
 REGISTER_I2C_PCI_DETECTOR("Palit 3090 Gamerock",                DetectPNYGPUControllers,    NVIDIA_VEN, NVIDIA_RTX3090_DEV,         PALIT_SUB_VEN,  PALIT_RTX3090_GAMEROCK_SUB_DEV,             0x49);
 REGISTER_I2C_PCI_DETECTOR("Palit GeForce RTX 3060 Ti Dual",     DetectPNYGPUControllers,    NVIDIA_VEN, NVIDIA_RTX3060TI_DEV,       NVIDIA_SUB_VEN, PALIT_RTX3060TI_SUB_DEV,                    0x49);
+REGISTER_I2C_PCI_DETECTOR("Palit 4090 Gamerock",                DetectPNYGPUControllers,    NVIDIA_VEN, NVIDIA_RTX4090_DEV,         PALIT_SUB_VEN,  PALIT_RTX4090_GAMEROCK_SUB_DEV,             0x49);
 REGISTER_I2C_PCI_DETECTOR("NVIDIA RTX2080S",                    DetectPNYGPUControllers,    NVIDIA_VEN, NVIDIA_RTX2080S_DEV,        NVIDIA_SUB_VEN, NVIDIA_RTX2080S_DEV,                        0x49);
 REGISTER_I2C_PCI_DETECTOR("NVIDIA RTX2060S",                    DetectPNYGPUControllers,    NVIDIA_VEN, NVIDIA_RTX2060_TU106_DEV,   NVIDIA_SUB_VEN, NVIDIA_RTX2060_TU106_DEV,                   0x49);
diff --git a/pci_ids/pci_ids.h b/pci_ids/pci_ids.h
index db94be66..3d8a8f91 100644
--- a/pci_ids/pci_ids.h
+++ b/pci_ids/pci_ids.h
@@ -580,6 +580,8 @@
 #define PALIT_RTX3090_SUB_DEV                           0x2204
 #define PALIT_RTX3090_GAMEROCK_SUB_DEV                  0xF278
 
+#define PALIT_RTX4090_GAMEROCK_SUB_DEV                  0xF296
+
 /*-----------------------------------------------------*\
 | Sapphire Sub-Device IDs                               |
 \*-----------------------------------------------------*/