Windows 10: Dell Laptop motherboard identification

I need to replace my MB. WHen I do search for my model, It seem there is different CPU speed on MB. I can't figure wish one I have. Maybe the MB have a part number, but I can't find it.
Here is my Service Tag: 6DTGGS1
The model is:
XPS 14 L421X

:)

 

I want to disable touchpad on Dell laptop


These 7 steps allowed me to disable my touchpad (Dell laptop, Windows 10):

1. Win Start button
2. Type in "device manager"
3. Select Device Manager to open it
4. Click down arrow to left of "Mice and other..." to expand
5. Right click Dell Touchpad
6. Disable device
7. Yes

 

HELP! My Laptop has gone into SLOW MOTION!

Should be able to get a "step-by-step here;

http://support.dell.com/?~ck=mn

 

I want to disable touchpad on Dell laptop


Hello everyone,
My laptop's touchpad works and I don't want it to, because I prefer a mouse. It's a Dell Inspiron 11 3000 series on windows 10 OS.

What I have tried that hasn't worked:

• start<settings<devices<mouse & touchpad<additional mouse options. This opens a window called Mouse Options which has 5 tabs up top, none of which involve the touchpad. The Hardware tab shows 2 devices: the mouse itself, and the USB. No touchpad there.
• windows key+x<mobility center. No touchpad to be found.
• various function keys. No options for touchpad on/off.
• device manager<mice and other pointing devices. Again, only the mouse and usb show up. It appears the touchpad is working without a driver, which is a little spooky.

Any other suggestions? I could try downloading a third party driver, but that seems like a step in the wrong direction.
Thanks