PowerEdge T40 PCI Serial Port Installation Problem

Hello, you can check your drivers and firmware here https://dell.to/3ssu9ga When you choose an operating system from category you can find suitable firmware and drivers list. I can recommend Intel chipset and Intel management drivers.

Hope that helps!

I know this is an old thread but I had the same problem today, installed the T30 chipset drivers for the T40

https://www.dell.com/support/home/en-uk/drivers/driversdetails?driverid=phmn0&oscode=w12r2&productcode=poweredge-t30