My system: HP EliteBook 8440P 2.8 GHz Intel Core i7 M640 Win7 Professional 64bit Bus clock 133 M

[Actbro]

My system:

HP EliteBook 8440P

2.8 GHz Intel Core i7 M640

Win7 Professional 64bit

Bus clock 133 MHz

Bios: HP 68ccu, ver. F.11 (2010) 

Dual core, hyper threaded (4)

(?) Mobile Intel QM57 chipset

According to Belarc Advisor I currently have one 4MB module of Samsung RAM under the keyboard. The second slot is empty. First off, isn't most RAM memory sold in GB? I know the computer is capable of 8GB, and the Kingston modules I just tried to install were 4GB each. The Kingston sticks are 8GB (2x4), PC3-10600, CL9, 204 Pin SODIMM, 1.5V modules, and they do NOT work on this laptop even though they should.

Has anyone found the secret to exactly which memory modules will work with this specific laptop model? Is it density issues? Voltage issues? Am I missing a driver. Do I need to sing to the thing while I install the memory?

Seriously, any help at all will be appreciated.

Please 🙏🙏 🥺 provide me sution I know this out dated but I want to upgrade it.

[Paul_Tikkanen]

Can you post the link to the Kingston memory you bought?

On the surface, the specs seem correct.

This 4 GB memory chip would meet all of the characteristics of memory that works in that model, and it should work with the 4 GB chip that HP installed.

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