Dell Precision 5510 Owner's Lounge

Has anyone had any luck in enabling AHCI?

I change value of HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci to "0"
Reboot into Bios and change RAID to AHCI
BSOD

 

You need Windows 8.1 or later to set different scaling levels on different monitors.

 

I've had a heck of a time with the scaling and I'm using Win10. I always connect an external 1080P monitor and at first everything worked well, but after a couple weeks "something" changed. Previously, I always closed the laptop lid for space and efficiency purposes and just worked on the external monitor. The scaling was as it should be to the external. After it changed though whenever I closed the laptop lid the external display got wonky in a lot of my programs blowing up icons and toolbars to silly large proportions. The second I opened the laptop it reverted to a proper scaling.

I have tried going in and adjusting separate monitor display scaling but to no avail. The options seem very limiting in "duplicate display", "extend display", "display on 1", or "display on 2". I just want to duplicate but have separate screen scaling. It won't let me do that though and locks the 1/2 as one screen that I can't differentiate. I found that I could go into the custom resolution scaling and lock it into 100% which kept my external monitor properly scaled whether the laptop lid was opened or closed, but the problem was the laptop screen itself used the 4k resolution with no scaling making it virtually unusable. I don't want to sign in/out everytime and manually change that setting which is what I'd have to do to go between using just the laptop or just the external. Very annoying.

Anyways, just some thoughts......

 

Bottom line on this still is: Windows doesn't work well in high-DPI in many scenarios.

 

Before switching from RAID to AHCI, try this:

1. In Windows 10, go to Settings > Update > Recovery > Advanced Startup
2. Tell Windows to reboot the machine with advanced startup options, in SAFE MODE.
3. When the computer reboots, immediately go into the BIOS config and change from RAID to AHCI.
4. Exit the BIOS config, saving changes.
5. Windows should boot fine, in safe mode, and load the necessary drivers.
6. Shut down Windows and start back up normally.

 

Thanks I'll try and reproduce in Windows 7 somehow. I tried earlier to boot in safe mode but still BSOD, also updated the drivers and tries to update to AHCI but it kept the RAID driver.

 

The above method only works with Windows 8 and up. For Windows 7 you will get BSOD if you try to boot safe mode with the disk controller mode changed. You have to make a registry change for it to work. This looks like what you're trying to do, but I've only ever done this on Win8+ so I don't have any experience with the procedure for Windows 7.

 

Also tried to rename and copy the inf-file from the chipset package into /Windows/inf/ (renaming the iaAHCIC.inf to msahci.inf) as the inf was missing from the Windows folder. No luck either.

https://downloadcenter.intel.com/download/25165/Intel-Rapid-Storage-Technology-Intel-RST-RAID-Driver

 

I just received my i7 / 16G / 1TB m2 / 4k precision 5510, and noted that the Delete button is "half immersed" into the keyboard and has no/little travel compared to the other keys. Is it supposed to be like this? Has anyone else noted something similar?

 

Not supposed to be that way! All keys should behave the same.


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