-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Desktops
- Desktop Hardware and Upgrade Questions
- Can't get Z420 to read compatible RAM

Create an account on the HP Community to personalize your profile and ask a question
11-24-2016 05:38 PM
Thanks for the info. The old ram has nine chips, and the new ram has eighteen.
When the old and new sticks are installed, the BIOS setup says the same: both UDIMM6 and UDIMM8 have 2.
Is there anything else you can recommend trying?
11-25-2016 08:59 AM
> The old ram has nine chips, and the new ram has eighteen.
OK. So, it's not a "low-density-versus-high-density" problem.
> When the old and new sticks are installed, the BIOS setup says the same: both UDIMM6 and UDIMM8 have 2.
Since you have EIGHT slots for RAM, can you exchange the two 4GB sticks for four 2GB sticks, and thus fill 6 out of the 8 slots?
- « Previous
-
- 1
- 2
- Next »