Extra memory installed not detected in BIOS or Windows

[D!ABOL!C]

Hello friends,

 

I have an HP desktop from work that I wanted to install some extra memory in and it is not detected. I have attached a picture from the BIOS. The PC originally had 2 DIMMS of 4GB totaling 8GB. I added 2 additional DIMMS of 4GB to bump the total to 16GB. After adding the additional memory, the BIOS doesn't see it as illustrated below and of course Windows does not either. There was a newer BIOS update, so I did that update with no luck. I did some googling and there were a few things to check within Windows, but I gather since it isn't detected by the BIOS, those won't matter.

 

The only other thing I can think of is trying the additional sticks one at a time to verify they are good, but beyond that can't think of what else to try. Any thoughts? Thank you!

 

-D

[jnelsoninjax]

I assume you have checked that the dimms are compatible and properly seated? Otherwise I can not think of any good reason for them not to be detected.

[D!ABOL!C]

Forgot to mention about seating them. Yep, I made sure they snapped in to the slot. As far as compatibility, I'd assume so. I'm going to mess with it tomorrow and try the additional sticks I got individually. It's so weird to add the sticks and not be detected, unless they are bad. I'll try running mem test as well

[jnelsoninjax]

  On 13/05/2021 at 02:34, D!ABOL!C said:

Forgot to mention about seating them. Yep, I made sure they snapped in to the slot. As far as compatibility, I'd assume so. I'm going to mess with it tomorrow and try the additional sticks I got individually. It's so weird to add the sticks and not be detected, unless they are bad. I'll try running mem test as well

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Yup, that's the best thing to do right now!

[Mindovermaster Global Moderator]

Yeah, memory stick could be bad. Reason why it's not picking it up. MemTest it up.

 

Might want to try ONLY that default stick alone, see what you get.

[D!ABOL!C]

I removed the original pair and tossed in 2 pairs of 4GB. Of those 2 pairs, only one worked. When I put in the original pair with one of the new pair, only 8GB was detected. I suppose worst case is the DIMM slots themselves are bad, but I think you both are right with Memtest, I should get a straight answer, I hope.

[Jim K Global Moderator]

The new memory is compatible right?  For example, you didn't purchase DDR3L modules?

[TheReaperMan]

HP are a pain for ram you have to get the right modules or they just do not work, you aresure that machine can use more ram than was installed and the modules are compatable?.

 

 

[Mindovermaster Global Moderator]

  On 13/05/2021 at 05:06, TheReaperMan said:

HP are a pain for ram you have to get the right modules or they just do not work, you aresure that machine can use more ram than was installed and the modules are compatable?.

 

 

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His computer says 32Gb is the max. So is well in that range.

 

edit: https://support.hp.com/us-en/document/c03382665

[D!ABOL!C]

Just wanted to give you all an update. Out of the 3 pairs of RAM I was given, 2 of the pairs were bad. I plugged them all individually and the computer started beeping at me with a red light on the front with those 4 sticks. I put the original pair of memory and the one good pair together and I was able to get 16GB. Thanks for all your input!