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SparkyTech934
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HP Z640 XMP support?

HP Recommended
HP Z640
Microsoft Windows 10 (64-bit)

Hello.  I just bought a used HP Z640 workstation and I wanted to upgrade the RAM in the machine.  Currently the machine has:

  • 2 sticks of Samsung M393A1K43BB1-CTD6Y
    • 8GB per DIMM for total of 16GB in the system
    • Registered ECC
    • Rated for 2666MHz

While looking for RAM options online, I started to wonder if the RAM currently installed in the system was even being used to its full potential.  I have the following questions:

  • What is the maximum supported frequency of RAM for my HP Z640?
  • Does the machine have XMP support?

For reference, the system currently has 2x Intel Xeon E5-2620v3 CPUs installed, and the BIOS is version 2.57 (May 2021).

 

Thanks in advance for your time!

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DGroves
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xmp is a non official method to overclock ram, as such it is not supported by HP on servers/workstations where stability is paramount

 

ram speed is set by the motherboards chipset and cpu installed,  lower end cpu's will have a slower ram speed limit compared to a highend cpu

 

check the HP z640 quickspecs for supported cpu's/ram module speeds

 

https://support.hp.com/us-en/product/hp-z640-workstation/6978835/document/c04496994

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DGroves
Level 11
4,769 4,048 449 925
Message 2 of 3
Flag Post
HP Recommended

xmp is a non official method to overclock ram, as such it is not supported by HP on servers/workstations where stability is paramount

 

ram speed is set by the motherboards chipset and cpu installed,  lower end cpu's will have a slower ram speed limit compared to a highend cpu

 

check the HP z640 quickspecs for supported cpu's/ram module speeds

 

https://support.hp.com/us-en/product/hp-z640-workstation/6978835/document/c04496994

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SparkyTech934
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Hello,

 

Thanks for the information, it pretty much confirms what I was thinking before I even posted, just thought I'd check around with others.  I actually found a great deal on Newegg on some Crucial RDIMMs, 8GB DDR4-2133.  They were $26.96, brand new.  Couldn't believe my luck!  It was outside my budget, but I spent the money on 8 sticks.  Worth taking advantage of.  Anyways, thanks again!

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