Use this update to enable UEFI booting from the adapter. This must be done to use the PEXSAT34RH on 
UEFI only computers and must be applied before usign the hardware Raid tool. 

Note: Program tool have to run it on real DOS environment, not Windows DOS mode
Use a tool such as Rufus to create a DOS boot disk on a USB thumb drive

1. Unzip everything in this download and copy it into a folder named RE9230.A15 at the root of the USB drive
2. Boot into the DOS environment from the USB thumb drive
3. cd into C:\RE9230.A15
4. Type “ autoexec.bat ” to start update firmware