I request you to provide the complete system model. I can check the enhancements available for the latest BIOS in this system and let you know.
Thanks for getting in touch my system model is Alienware Aurora R4
Processor: Intel Core i7-3820 (3.60GHz, Four Core, 10MB Cache)
Genuine Windows 7 Home Premium
8 GB Memory (4x2GB) 1600MHz DDR3 Quad Channel
Graphics : Dual 1.5 GB GDDR5 NVIDIA GeForce GTX 660
Optical Drive : 8X Blu-Ray RW (Blu-Ray, DVD, CD read & write)
English Genuine Windows 7 SP1 Home Premium (64Bit OS)
ALX Matte Black 875W Chassis
Software : Datasafe Local 2.3 Basic
Wireless: 802.11n WiFi and Bluetooth 2.1 EDR USB Combo Adapter
Thermal Heat sink
AlienFX Colour : Terra Green
2 TB SATA III Hard Drive (7200RPM)
I checked with the Alienware Aurora R4 system, A07 BIOS is latest version available on Dell support site which enhances PCIe margins which may improve the performance and stability of certain third-party graphics cards.
You may want to use the below link for A07 BIOS: