Apologies if there is a more appropriate location for this post, but I have done hours of searching for this particular problem and cannot find it anywhere. There was one post with the same problem from several years ago, but it was never resolved.
My setup: latitude xt2, windows 7 professional x64, 5GB ram, Samsung SSD 128 GB
Problem: during boot, just after POST isystem hangs for about 50 seconds before the Windows 7 splash screen. No other performance issues identified.
Attempted solutions: (1) updating device drivers = no change, however some intel XT2 drivers fail to install (specifically, Intel AMT SOL/LMS & Intel AMT HECI -- it says my computer does not meet the minimum requirements despite having .NET framework latest version installed; more on this later) (2) defaulting BIOS = no change (3) changing SATA operation mode; IRRT (default), AHCI, and ATA all result in no change to reported problem. (4) using another XT2's backup file from drivermax, I tried a recovery = no change and several drivers unable to install (unknown which ones) (5) and some other more obvious solutions like changing the boot order. I did find something interesting regarding boot order though; I changed the ONLY boot device to the CD/DVD drive and it still did the 50 second hang before it even attempted to power up the CD drive
Additional notes: when I flashed the latest bios (version 15), before flashing it, it said IM HARDWARE NOT WORKING, IM WILL BE IGNORED (or something to that effect). I believe this was refering to Intel Management Engine BIOS extension. When I hit F12 before POST, I have the option to enter BIOS, boot normal, or enter Intel Management Engine BIOS Extension. I tried the latter option a couple times and in all cases it attempts to load the interface for about 20 seconds then just boots into windows 7 as normal.
So it doesn't appear to be the BIOS or the OS, leaving only BIOS extensions as the likely culprit (as far as I know). Does this appear to be a hardware failure on the chipset? I read an article on Intel's site that outlined the procedure for doing BIOS recovery mode (removing a jumper on the MOBO). Obviously it would be nice to avoid this since it is a laptop, but if this would actually fix something then I will give it a shot. Anyone have any ideas?