Small summary how I got my Dell e6440 working with a GTX660 via ExpressCard EXP Beast V8.4d.
My setup:
- Dell e6440 igpu only
- ExpressCard slot (EC)
- 16GB RAM
- i7-4710
- Win 10 Pro 64 Bit
- UEFI installation
- Bitlocker enabled on system disk
- EXP Beast V8.4d
- GTX 660
- Dell power supply
On the A16 bios the ExpressCard slot is connected to Port 7.
Use UEFI settings to change to GEN1 mode and TOLUD to 3GB.
- Create a FAT32 UEFI boot stick with Grub Bootloader.
- Get bootx64.efi here and copy to \EFI\BOOT\ on the stick
- Disable "UEFI secure boot" in the bios, with secure boot it will not boot into the stick!
After booting into Grub type:
- 'setup_var 0xF5 0x2' for setting Gen1 mode
- 'setup_var 0x275 0xB' to set TOLUD to 3GB
- this will be useful if an upgrade to a GTX9x or newer or an AMD card is required.
Enjoy your upgraded GPU power!
Gen2 mode is very unstable, therfore I switched back to Gen1.
Issues observed with Gen2:
- GPU not fully detected after boot (not usable)
- PCI 16x 3.0 shown in GPU-Z
- PCI 16x 3.0 shown in GPU-Z
- Bluescreens
-
Gen1 VS Gen2:
The higer bandwith gives a better score in 3dMark11
Gen 1: 4641
Gen2: ~4800
Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts
i want to get e6540 which is basically same model but 15 inch, is there a way to make it stable with gen2? can you try wraping hdmi cable with aluminium foil and test it that way?
Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts