Laptop processor upgrade, no boot

[milmil]

Hello,

I tried upgrading my HP 520 laptop from Celeron M 440 to dual core T2450. The BIOS detects the new CPU but laptop won't boot and there's no display. Place the Celeron back and it boots fine. What's wrong?

 

[WR2]

Hello milmil;

Did you do a BIOS update before you changed CPUs?

 

[WR2]

And you did check to see that the dual core T2450 CPU was supported by your motherboard?

 

[milmil]

I did a bios update from F.04 to F.07. I had no resource to check whether the T2450 was supported by my motherboard. But it was detected by the BIOS though.

 

[WR2]

A resource is the HP forums to check and see what other HP 520 owners have done for CPU upgrades.

 

[ameenfarazsi]

hi
if bios is detecting the cpu its good. before up upgrading did u verified the tdp original processor and replaced processor is same or not.