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Installation of New Ram

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HI I have a Z440 workstation with CPU E5-1607 v4 @ 3.10GHz and two  4 GB RAM .  I have bought one one Zion 8GB RAM with matching frequency and try to install it. But it is not working? Now what to do?

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Just to be sure, double check the specs for memory


Have you tried inserting the dimm in a different slot?  I'm assuming the slots that held the original 4GB DIMMs are working, does the new DIMM work in either of those?  When you go into the bios does the  8 GB DIMM show up?  Sometimes you have to really push down hard to get the dimm to seat properly; you may also want to make sure the copper contacts on the dimm are clean, they should be shiny.  Be careful handling the DIMM, they are sensitive to static discharge. Follow precautions against static discharge.  And lastly see if the dimm works in another computer.  I think it's unlikely the motherboard has a bad dimm slot but you never know.  Hope this helps

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IF YOU READ THE hp QUICKSPECS, OR SERVICE MANUAL, or read the side door information, all of the them will tell you that ECC registered memory is required for more than 32gig, and ECC ram unregistered ram for under 32gig furthermore the ecc registered module "Rank" must match  the current memory you have.


you can not mix registered/unregistered ram


ram must be installed in pairs 2/4/6/8 you can not run just 3 modules either add one or remove one


check the label on the ram you have and you will see a line like this  rank 2x8 or 4x8 ECC Registered

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