RAM for my reports Desktop and laptop computers.

[vlwalk]

I'm a manager for my company and I want to increase the RAM for their Desktops and Laptops. I'm not very tech savy when it comes to ordering memory. I  need to order RAM to  add or replace what they have so they are up to the minimum of 32 Gb or 64 Gb for two of my heavy user. My reports have a few different computers and different levels of memory already in their computers. I was looking to comfirm new RAM part numbers or replacement RAM part numbers for the following.

Desktops

Z640: I need 32 Gb more RAM or (1) replacement 64 Gb RAM.   

Z620: I need 24 Gb more RAM or (1) replacement 32 Gb RAM.

Laptops

Elitebook 8570w: I need 12 Gb more RAM or (1) replacement 32 Gb RAM.   

zBook: I need (1) replacement 32 Gb RAM to replace (8 Gb, 12 Gb, 16 Gb, 20 Gb, and 24 Gb)  

[DGroves · Accepted solution]

the systems you listed are HP workstations or business class systems and as such might be better served by posting in that forum

https://h30434.www3.hp.com/t5/Business-PCs-Workstations-and-Point-of-Sale-Systems/bd-p/Business-PC-W...

buying compatable memory is not that hard, the only thing to watch out for is Registered or unregestered memory

if you look at a existing memory module you will see numbers letters printed on it that look like this:

PC3-12800R 8GB  <--note the "R"= registered ram

or

PC3-12800 8GB <-Note no "r"

HP info on z620 quickspecs and ram

https://s4u.com.ua/assets/files/hp-z620.pdf

http://h20331.www2.hp.com/hpsub/downloads/z620_memory_configurations.pdf

HP z640 quickspecs (look at memory section)

http://www8.hp.com/h20195/v2/GetPDF.aspx/c04400040.pdf

crucial memory finder click on "scan my system now" button to run a program to see what type of memory and how much is currently installed, (it will then show recomended memory kits) repeat on each computer

http://www.crucial.com/usa/en/compatible-upgrade-for/HP---Compaq/hp-z620-workstation

main crucial memory page:

http://www.crucial.com/usa/en/memory-info?cm_re=top-nav-_-flyout-memory-_-us-memory

[mdklassen]

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@vlwalk wrote:

I'm a manager for my company and I want to increase the RAM for their Desktops and Laptops.

I'm not very tech savy when it comes to ordering memory.

I  need to order RAM to  add or replace what they have so they are up to the minimum of 32 Gb or 64 Gb for two of my heavy user.

My reports have a few different computers and different levels of memory already in their computers.

I was looking to comfirm new RAM part numbers or replacement RAM part numbers for the following.

Desktops

Z640: I need 32 Gb more RAM or (1) replacement 64 Gb RAM.   

Z620: I need 24 Gb more RAM or (1) replacement 32 Gb RAM.

Laptops

Elitebook 8570w: I need 12 Gb more RAM or (1) replacement 32 Gb RAM.   

zBook: I need (1) replacement 32 Gb RAM to replace (8 Gb, 12 Gb, 16 Gb, 20 Gb, and 24 Gb)  

---

For the Z620, this page states:

Up to 12 DIMM slots with 2 CPUs, up to 192 GB, 8-channel ECC DDR3 1600 MHz; 4 channels per CPU

and:

Each processor supports up to 4 channels of DDR3 memory.

To realize full performance at least 1 DIMM must be inserted into each channel.

Note that this is "ECC" RAM, not the usual RAM that is used in desktop computers.  Be careful when you order.

So, it seems that you will not need to "replace" any RAM.

See: www.crucial.com for their "Memory Configurator", to help you select the part-numbers for compatible RAM

For the Z640,

• 256 GB DDR4-2133 ECC Registered RAM
• Actual memory speed dependent on processor. Only Registered and Load-reduced ECC DIMMs are supported.
• 4 DIMM (with 1 processor) and 8 DIMM (with 2 processors)

So, you may not need to add any RAM.

I see TEN models of the "Elitebook 8570w", via:

http://www8.hp.com/ca/en/search/search-results.html?ajaxpage=1#/page=1&/qt=Elitebook%208570w#

I see MORE THAN TEN models of the "ZBook", via:

http://www8.hp.com/ca/en/search/search-results.html?ajaxpage=1#/page=1&/qt=zbook

You will need to be more specific. But, that CRUCIAL web-site should be a useful resource.