Can M7-K111DX use a M7-K211DX mother board

[Manuel_Matus]

I have an HP M7-K111DX and my motherboard got fried, for some reason. I am buying the motherboard but I can't find it anywhere. However, I saw the motherboard but it said for an M7-K211DX. Are these compatible? They have same model number printed on motherboard (DAY11AMB6E0 and next to the RAM slots both say MODEL:Y11A). I need confirmation of this so that I can go ahead and purchase my part!!! Thank you very much!!!!

[Huffer]

The motherboards are different. On these models the processor is soldered to the board. The heatsinks are the same however. 

Also the base enclosures are the same. This tells me the mounting holes for the motherboards are in the same place. If you get the -k211dx motherboard you will upgrade from a 4th to slightly faster 5th gen CPU but it looks like everything else is the same: video chip, video cable, etc. This is never an exact science: HP has no cross-compatibility chart, but I have done this a few times and I would buy that -211dx motherboard in this case for replacement. 

Post back with any other questions and please accept as solution if this is the info you needed.  

[Manuel_Matus]

Hi, I have gotten the M7-211-DX motherboard and it is exactly the same as the M7-111-DX. When comparing the two motherboards, the only difference is in the generation of the processor. (https://support.hp.com/us-en/document/c04441999 VS https://support.hp.com/us-en/document/c04556394). So I installed the motherboard, using thermal paste and keeping everything as it is supposed to be. I purchased the original charger, I changed the DC connector that connects the charger to the motherboard and I also changed the small little board that has one USB and headphones jack to the right of the computer. Now, when I turn the computer on, it comes on and it works perfectly! However, when the computer restarts, the screen is black, and I mean black like it does not power on at all. The computer is on, the fan is running and the power light is on. It is the screen that just does not show anything at all. When you turn on a computer, you can tell when the screen changes from black to like a blueish black. This one no, it is just black like if the screen was not getting power. It does that randomly. When it comes on, I upgraded all drivers, did a reset of windows 10 but it still does that weird thing. I did not upgrade the BIOS, though, and I think that is my next try. Also, there is this new update of Windows 10, and when it tries to upgrade, the computer freezes and I get a blue screen every time. Now, I contacted the guy who sold me the motherboard and he said he can send me a replacement. However, would it be the motherboard with the issue? I connect a secondary screen to the laptop when it is on, and it works. But when this black screen issue happens, neither of the screens gets any sign of a signal. What should I test or what should I check?

Thank you very much!!

[Huffer]

So you are using the same hard drive as you used with the original board? You did not reinstall Windows you just updated?

Yes I would update the BIOS if you can. The replacement board might have a very old BIOS on it. If you have a spare hard drive I would try a new clean installation of Windows 10 as there might be some subtle compatibility issue. I will tell you that techs are taught to do a clean new install of Windows for a motherboard or even a CPU replacement and you replaced both. If after a clean install you still get the same issue then its the motherboard.