What is the best cpu for Intel celeron 900 upgrade ?

[Babyfacemrah]

Hello guys! 
i m using compaq presario cq61 

intel celeron 900 

p socket478

i WANT TO UPGRADE MY PROCESSOR 

CAN YOU SUGGEST ME THE BEST SUITABLE INTEL CORE DUO ??? Processor , please . 
thanks in advance 

bye

[Paul_Tikkanen]

Hi:

Before I can do that, I need to know what chipset your notebook has.

Run the free utility that I zipped up and attached below and in the summary window, it should show you the chipset version.

It is going to be either a GM45 or GL40.

Here is what my report looks like.

You  can see on the left side of the summary report underneath the motherboard description is the Chipset.

Mine is the Intel Q67

[Babyfacemrah]

 thank you I downloaded it and took its photo here it is cpu is gl40 chipset so waiting for your suggestion . Thank you 

[Paul_Tikkanen · Accepted solution]

You're very welcome.

Below is the link to the service manual for your notebook's model series.

Chapter 1 has the list of supported processors.

http://h10032.www1.hp.com/ctg/Manual/c01740724

This is why you need to know what chipset your notebook has before you buy a processor.

The best processor you can install that is listed in the service manual when your notebook has an Intel GL-40 chipset is the T6600.

That is because the GL-40 chipset can only run processors with a max FSB speed of 800 MHz, such as the T6600.

The P8700 and P7450 have 1066 MHz FSB's, so that is why they won't work with the GL-40 chipset.

Your notebook would have needed the GM-45 or PM-45 chipset in order to run one of those two processors.

[Babyfacemrah]

Thank you so much sir . T6600 is suitable ok . I hope it makes my lab top faster because I got rid of this celeron‘a slow motion working . 
by the way can I put drr 3 ram to this laptop is it supported or not ? 
thanks 

[Paul_Tikkanen]

Anytime.

Glad to have been of assistance.

You cannot install DDR3 memory in your model for two reasons.

1. It runs at a different voltage that DDR2 memory.

2. It has a different number of contact pins and the notch is cut in a different place than it is on the DDR2 memory sticks, so the DDR3 memory will not fit in the memory slots.

That is done to prevent a person from installing the wrong voltage memory and thereby wrecking the memory and possibly the notebook's motherboard as well.

[Babyfacemrah]

Thank you so Much sir 🤗

[Paul_Tikkanen]

You're very welcome.

Please post back and let us know how your processor upgrade project went.

[Babyfacemrah]

Hi again, 

ı bought intel Core duo t6600 as ypu recommended and ı watched a video on youtube. And ı changed myself , now its Working very fast opening and closing so fast , too. Thank you so much .

But t 8300 , t9300 and t9500 are these suitable, and faster or not ? İs it important stepping and 35-45 Voltage??? 
thanks in advance 

[Paul_Tikkanen]

You're very welcome.

Glad you were able to upgrade the processor to the T6600.

Funny you should ask...

Someone else on this forum asked about upgrading the processor for a different Intel CQ61 and I gave him the same recommendation I gave you.

He experimented with some processors and yes, the T9300 works which is what he installed, so I would assume the T9500 would work as well.

See the discussion below...

https://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/CQ61-210ei-Processor-Upgrade/m...

Here is a comparison between the T6600 and the T9500.

https://ark.intel.com/content/www/us/en/ark/compare.html?productIds=37255,33918

The T9500 is faster, but it will run hotter.