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Laptop processor upgrade, no boot

Last response: in CPUs
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February 5, 2012 11:59:15 AM

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?

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a c 203 à CPUs
a c 572 D Laptop
February 5, 2012 12:09:25 PM

Hello milmil;

Did you do a BIOS update before you changed CPUs?
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a c 203 à CPUs
a c 572 D Laptop
February 5, 2012 12:10:01 PM

And you did check to see that the dual core T2450 CPU was supported by your motherboard?
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February 5, 2012 9:24:54 PM

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.
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a c 203 à CPUs
a c 572 D Laptop
February 5, 2012 9:45:36 PM

A resource is the HP forums to check and see what other HP 520 owners have done for CPU upgrades.
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May 31, 2012 5:22:23 PM

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.
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