HP 620 (GM45/GM47 chipset) CPU upgrade?

[sidboy55555]

Hi, the other day I was searching for a new cpu, because I already upgraded to 8GB ram. But the FSB is 800MHz and I want to upgrade it to 1066MHz, I already googled and found this:

http://www.cpu-upgrade.com/mb-Intel_%28chipsets%29/GM45_Express.html

But I´m not sure the HP 620 is gonna support them all, after all some are quad core...

So can maybe someone make a list wich of those are supported for the HP 620 (from up to down the best cpus).

- Sidney Teelen

[Huffer]

These are the best CPUs for the series:

P7570, 2.26-GHz, 1066-MHz FSB, 3-MB cache

P7370, 2.00-GHz, 1066-MHz FSB, 3-MB cache

T6670, 2.20-GHz, 800-MHz FSB, 2-MB cache

T6570, 2.10-GHz, 800-MHz FSB, 2-MB cache

These are Core 2 Duos. If you have a Celeron or Pentium dual processor you may have the GL40 chipset which does not work right with Core 2 Duos. 

Here is the Service Manual:

Manual

p. 28-29. Different motherboard for GL40 chipset. 

So post back if any more questions.

If this is "the Answer" please click "Accept as Solution" to help others find it. 

[sidboy55555]

The original CPU was the celeron 900, but I upgraded it to the core duo T6670.

and speccy is saying it has te gm45 (even minecraft is saying it xD (in the log files of the game etc.)).

EDIT: it would be nice if there is a CPU with 2.8GHz or higher.

[Dr-Sitz]

http://www.kephost.com/image/cNSr

[mrjohn1]

hey my name is john and i have hp 620 laptop..i have a problem that my processor is  intel pentium t4500 and the cpu only gives me 2.30 GHZ and it give me maximum SPD ferquancy 666MHZ so i want to upgrade the cpu to 2.50 GHZ minimum but i don't know what should i get and what is complitable to the device that won't harm my laptop and don't harm the motherboard.

I am gonna give you some infromation and i hope to reply me soon

my socket is :  P (478)

motherboard model:   1526

motherboard chipest:  Intel GL40

GPU Name:  45 express chipset family

-------------------------------------------------------------------------------------------------------------------------

Can i run core i3 or dual core 2duo?

i hope you answer soon

[Niki97]

Ok i have a solution of cpu supports list,i have try my self to upgrade quad core processor and it works i upgrade intel core 2 quad q9000 and i works perfect,but still the graphics card is low and bad its not for gameing.. here is a list of cpu supports http://www.cpu-upgrade.com/CPUs/Intel/Core_2_Duo_Mobile/T9900_(Socket_P).html

[elManu47]

Greetings from Spain. Lately I've been trying to make my HP 620 useful again. I installed a 240gb ssd and upgraded to 8gb ram. When I read that the quad q9000 worked, I found and offer and bought it. I tried it today but the labtob didn't boot, the fan started moving but after a few seconds, it turned off again. I don't know if I did something wrong...

It has the gl40 and I haven't upgraded the bios, do I have to? Do I have any other options? It know has the pentium t4500, working at 2,3 Ghz... can it be overclocked or something??

[Huffer]

The GL40 chipset will definitely not support a Quad Core processor. It supports some but not all Core 2 Duos as you can see above. 

[elManu47]

Yeah, I know it doesn't work, I tried it (and I did because someone said it worked for him). Now I'm asking if I have any compatible processor better than the T4500, or if I have any other way to make my actual cpu work faster.

I appreciate every answer..

[ateterca]

Hi there! I have the
HP 620
with Hewlett-Packard 1526  motherboard
it has Intel GL40  + ICH9M (Base). So only cpu's with 800MHZ FSB will work i supose. I have tried with 1066FSB and did not boot.
At this moment i have installed CPU Intel T9500 and it works great, i think it's your faster option, and mine off course.  Or the Intel X9000 have not ried that one. The T9500 works fine at 2,66Ghz.  I am running Windows 10 64 bits with ssd it runs smooth it's my computer. I do not play games. But i use it alot for other stuff, video work is slow, but image stuff is fine. I use as well for djing music.