Can I upgrade processor and ram?

[_nowii01]

Hi,

Can I upgrade my processor Duo Core T6600 in Compaq CQ56? Before, the original processor of this unit was Intel Pentium T4500, and I have DDR2 4Gb of Ram 800MHz. As my experienced using Pentium T4500 Processor, when I install Windows 10 Home & PRO and WINDOWS 11 Home (Year 2025) it runs well at first, but when I update the system in "WINDOWS UPDATE", the loading screen during restarting is always freeze. And when I try to restart it using pressing a button (Force Shutdown) it always freezes in Windows LOGO that is why I always try and try to install those Operating system, I also use modded OS but i am not sure if it is safe there so I came back to windows edition that is Genuine. 

So going back, I learned that I could upgrade my processor since I already have SSD and 4Gb of Ram

 800 MHz. Upon reviewing, I discovered that I could upgrade my processor. From Intel Pentium T4500 I upgraded it to Intel Core Duo T6600. And yep, this is what I am using right now while I am typing all of this story of mine. As my experience, there is no lag occurs and I can use my laptop smoothly using Windows 11 Home 22H2 only.

Right now, I am curious if I can upgrade my processor from Intel Core Duo T6600 with 800 MHz to Intel Core Duo T9300 with 800MHz. Upon reviewing, I actually have 3 Options. T9300 (800MHz, budget meal), T9500 (800MHz, very expensive for me), and lastly T9300 (1K+MHz, not recommended i think). I will choose T9300 and I want to clear it here if it can read it by my unit? Can I also upgrade my ram from 4GB dual channel ram t 8Gb? 

Device Specification: 
Computer Brand Name: Hewlett-Packard Presario CQ56 Notebook PC
Motherboard Chipset: Intel GL40 (Cantiga-GL) + ICH9M (Base)
CPU Brand Name: Intel(R) Core(TM)2 Duo CPU T6600 @ 2.20GHz
CPU Platform: Socket P (mPGA478/mBGA479)
Microcode Update Revision: A0C
L1 Cache: Instruction: 2 x 32 KBytes, Data: 2 x 32 KBytes
L2 Cache: Integrated: 2 MBytes
Total Memory Size: 4 GBytes
Current Memory Clock: 399.0 MHz (2 : 1 Ratio)

[Paul_Tikkanen · Accepted solution]

Hi:

The best processor you can install in your notebook would be the Pentium T9500.

The T9300 would also work fine.

The Intel GL40 chipset will only support a maximum of 2 x 2 GB of memory.

You can also upgrade to W11 23H2 but that would be the max because none of the processors support SSE 4.2 which is a new processor requirement Microsoft added for W11 24H2 and newer.

[_nowii01]

Thank you sir! for clarifying things. I am now confident to buy T9300 since it is a processor i can only afford

[Paul_Tikkanen]

You're very welcome.

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

[_nowii01]

Sure! Mr. Paul
i am currently gaining some money to buy this in online shopping