Possible CPU Upgrade for Laptop?

Usually the cpu's that laptop BIOS's are set up for and will allow upgrades, it whatever was available at the time the laptop was for sale.

IE.

If Laptop ABCD came with 4 different options.

1. CPU A123
2. CPU A234
3. CPU A345
4. CPU A456


You bought it with option 1, CPU A123. You find option #4, CPU A456. Odd's are the current BIOS or the latest available from the Laptop maker. They won't make a different BIOS for each CPU type, but they won't make it to support processors that aren't out yet.

6 months down the road, there is a new CPU that is the same socket and power, but maybe faster with a higher clock rate or multiplier, CPU A678 and CPU A789


Odd's are those probably won't work. The BIOS has no way to read the micocode properly to know how to clock the CPU, or might not even support a multiplier that high, maybe the new CPU requests a different voltage, etc.


Even though it's the same socket and thermal footprint, IMO experience in my business and playing around, if it wasn't offered during the life of the laptop, odd's are something is different enough to make it not work, or not work properly.