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Greetings everybody, I have an MSI Whitebook (MS-1763) that was purchased barebone- no CPU/RAM/HDD, just Mobo and GTX 780M. As many MSI users know, the optimus driver support can be strange- it required a specific install order: intel VGA first, then MSI-flavor Nvidia drivers only (although when I first went through this I was not modding INF files). It also seems like the Whitebook BIOS cannot be upgraded- under "Advanced" the EFI Update option is absent. My BIOS version is E1763IG6.70C Anyway I recently saw a chance on ebay to cheaply upgrade my 4700MQ to a 4800MQ and 780M to 880M. I bought both and swapped them in. The 4800MQ had no problem. At first I didn't update the Intel VGA driver but after problems (see next) I reinstalled them (via MSI site). The 880M wouldn't install. At first I tried the official driver from Nvidia, next I tried the official MSI driver for the GT70 Dominator Pro (appeared to be the same 1763 haswell platform but with an 880M). Both installers would fail to find compatible hardware, so I disabled automatic Windows drivers, disabled Driver Signature checking, and started modding INF files. The card appears in Device Manager as the generic Microsoft Display device (or whatever). The hardware ID for the card is PCI\VEN_10DE&DEV_1198&SUBSYS_05AA1462&REV_A1 Once I got the hang of modding INF files, both installlers would pass the compatibility check and proceed to the installation. However after selecting Custom/Express the installer would fail. It would pass the "Preparing" stage and get about 30 seconds into the installation before notifying me that it had failed. After the failure, in the device manager the generic Microsoft Display device disappeared and "Unknown Device" appeared under Other Devices. It still has the correct hardware ID. I tried modding nv_dispi.INF after that, but no change. I tried modding the 780M driver for the 2od, same result. Can anyone shed some light on this? Experience with updating or upgrading a Whitebook? Successfully installed an 880M with the 05AA subsystem? Think the BIOS is somehow the problem? I'm very close to selling off the card- but I've already sold my 780M. If I did buy another 880M or 980M, I'm concerned the same problem will occur. Don't make me buy back my old card!