Upgrade probook 640 g1

[Victor897]

Eu tenho um probook HP 640 G1 antigo e gostaria de saber os melhores upgrades para poder usar ele hoje em dia (RAM CPU e Memória interna)

[Raj_05]

Hey

Hope you are doing fine!

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[TzortzisG]

Hello Victor897.

This is HP's manual for the 6xx G1 line. On page 3 you can see both the RAM options and the storage configurations. When it comes to RAM, two 8GB DDR3L modules will give you the maximum possible capacity of 16GBs. Although 16GB DDR3 modules exist, these Haswell systems won't work with them. This is explained here. For storage you have the main 2.5" HDD compartment where you can install a modern SSD (if you haven't already) with any capacity you wish. There is also the option of installing a small m.2 2242 SSD in the WWAN slot. This must be a SATA ssd, not a PCIe one, and the best choices right now are the Transcend 430s (up to 1TB with DRAM cache) and the 425s (up to 2TB no DRAM).

This more than 10 years old review of the 640 G1 by the Austrians at Notebookcheck has photos of the opened up laptop and the location of the WWAN/m.2 slot:

There is a specific option in the BIOS setup menu to enable the m.2 SSD.

The CPU upgrades are a more complicated story. Page 1 of the manual shows the supported Intel processors. The most powerful one is the i7-4802MQ. However, users discovered that the quad core CPUs came with a motherboard that had a QM87 chipset while the dual cores usually had the HM87 (manual page 2). These users reported that upgrading a dual core with the HM87 chipset to a quad core was -in almost all cases- unsuccessful (unbootable machine). The reason for this has been explained here: https://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/HM87-and-QM87/td-p/9258753. What this means is that if your old 640 came with a dual core Haswell, the i7-4610M is the safest option for the CPU upgrade. If you have the QM87 (with a dual or quad core) you can risk going to a more powerful CPU.

Post back if you have more questions.