Below you can download pci serial port dell latitude e6400 driver for Windows.
I am pretty sure this is a standard Intel Q# chipset. Board index Drivers Database 2016 Driver Helps Pci Serial Port Dell Latitude E6400.
I have a dell optiplex 755 (tower), it was shipped originally with vista but was recently reinstalled using Windows 7, 64 bit.THe serial port driver, and something else called 'PCI Simple Communications Controller' (possibly a modem on the motherboard) are listed as 'other devices' in the device manager, with yellow exclamation marks in the icons meaning they have no drivers installed.Dell does not list any drivers on their usual website where you enter your service tag. To answer your question whether the warranty will be voided if you load Windows 7, I do not have the definitive answer but have worked with customers who have received support after downgrading to Windows 7.Let me check further into your inquiries which have already received very helpful responses from the other IT Pros. I will also check into this and report back. However, I noticed that the G4 series notebooks ship only with Windows 10.At this point, I know you are interested in obtaining certain Windows 7 drivers. There are other ProBooks that ship with Windows 7, such as ProBook 655 g2, ProBook 650 G3, etc.3. You will see drivers for the HP ProBook 470 G3 because is ships with Windows 7. Currently, HP is still selling business notebooks with Windows 7 which is available through downgrade rights from Windows 10. In the meantime, I quickly browsed the HP Store and saw:1.