2 Posts
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24537
Latitude 7390 max memory
Hello.
I have a latitude 7390 and I would like to upgrade the installed memory. The pc has only 1 slot available. The maximum amount of ram that Dell says it supports is 16gb. However the CPU i5 8250u supports up to 32gb max memory as intel says. The question is: if I use a 32gb dimm will it recognise it or not? The 32gb that intel says is because it takes into account 2x16gb dimms? Has anyone tried something similar before?
Thank you in advance.
U2CAMEB4ME
4 Operator
4 Operator
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6.2K Posts
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January 24th, 2020 04:00
Welcome to the Dell Community @Agapiospanos
Yes the CPU with DUAL channels will support 32GB 2x16GB.
But since there is only one slot it is single channel and is limited to 16GB max.
Best regards,
U2
NOTE:
If the CPU supported 64GB then 32GB per channel would be supported.
radno
2 Posts
5
June 24th, 2022 14:00
I've just registered an account here to let you all know that previous answers are wrong.
I've seen your post some time ago when I was doing some research trying to upgrade my i7-8650U 16GB Dell Latitude 7390 laptop with 32GB and gave up after seeing the replies.
The thing is that the answers here are wrong. I did a research again just before decision of selling my laptop due to not enough RAM and buying a new one and thankfully I discovered, 16 GB is not the limit anymore. There are now some used laptops on the market having 32 GB installed so I decided to take a risk and bought a new 1x32 GB unit which works like a charm.
Please note, that 7390 has only one memory slot, that's why I put 1x32GB. If I had 7490 with 2 memory slots, I would even try with 2x32GB.
The unit I put is 1x32 GB, SO-DIMM, DDR-4 2666MHz, 1.2V, but hope you guys won't have any issues with different freq like 3200MHz which will be downgraded on fly to the initial 2400MHz anyway (the same as my is reduced to 2400MHz automatically).
Please find the screenshot below. Hope my answer will help you guys.
Agapiospanos
2 Posts
0
January 29th, 2020 01:00
Great. Now I got the logic behind the limitation. Thank you for the complete explanation that you provided!
U2CAMEB4ME
4 Operator
4 Operator
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6.2K Posts
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January 29th, 2020 02:00
Your very welcome @Agapiospanos
Regards,
U2
sandrobernardinello
28 Posts
0
July 31st, 2023 08:00
Hi, I'm looking to buy a Latitude 7390 refurbished, it has the intel i5-8350U and I was thinking to upgrade to 32GB also. The processor is based on the same technology has yours so there shouldn't be any problem. I was just curious if you have found any issue at all in those years of using the laptop with 32GB ram module.
Thank you very much!!
burdavac
1 Message
0
August 22nd, 2023 06:37
@sandrobernardinello
Hi, I have also i5-8350U and was thinking about memory upgrade to 32GB, but was not sure if it will work. So I tried to order Kingston SO-DIMM 32GB DDR4 3200MHz CL22 Dual Rank x8 and it seems to work fine.
(edited)
m-d-g-m-c
1 Message
0
September 29th, 2023 15:01
@radno Hi Radno, many thanks for the post. Can I ask you what brand is the RAM you bought?
Dogrung
1 Message
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December 25th, 2023 13:26
@radno Hi bro! thanks for your information. Dear bro, can you share a video about how it smoothly working? i am trying to do same bro. please help.
sebastiandg
6 Posts
0
February 26th, 2024 17:13
I'd like to report that I installed a 32GB stick (Patriot PSD432G32002S) on my Dell Latitude 7390 13" (i5-8250U CPU) and it worked perfectly.
For 72€ (ram price) I gave a new life to the laptop which was hitting 8GB RAM limit and slowing down quite a lot.
(edited)
Dan0o0o
2 Intern
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8 Posts
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May 17th, 2024 14:26
I bought the 32 GB (Patriot PSD432G32002S) that @sebastiandg mentioned upthread. Got it from amazon: https://www.amazon.com/gp/product/B087WXRH88/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1
My question is for install (I've never done this before and am a rookie) if the new 32 GB ram takes properly where can I go to see if the PC recognizes it upon boot up? I am hoping it automatically recognizes it but want to verify. Are there any easy, how to tutorial videos you can share for how to do this 32 GB RAM upgrade and removing the current 16 GB stick? I'm a rookie and want to do this slowly and cautiously. I've done some work on this PC before like installing new PC speakers on it last year, for example.
These are my processor specs:
New/Reloaded OS: Win10 Pro 64bit
Processor Type: Intel Core i7-8650U Quad Core
Speed: 1.90 GHz
Is there any downside to getting the 3200 MHz 32 GB patriot RAM (I linked above) over the 2666 MHz version since (from reading here) the system will apparently only recognize and downgrade it to 2400 MHz on the fly? Wondering if I am further complicating/wasting money by buying 3200 MHz version over 2666 MHz version or if it won't hurt/doesn't really matter in the grand scheme of this situation?
Thanks for any help!
maskana
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3 Posts
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June 22nd, 2024 15:40
@Dan0o0o
Basically, there is no problem.
The reason for this is that most memory on the market today conforms to JEDEC standards and stores speed information in a memory area called SPD, which is installed in the memory module. For example, most DDR4-3200 memory has speed information for JEDEC standards such as 3200/2933/2400/2133. This is the reason why the reporter's DDR4-3200 memory worked with 2400.
As a precaution, do not purchase modules that are referred to as overclocked memory. Overclocking memory often requires additional BIOS/UEFI settings, but this PC's BIOS/UEFI does not allow user configuration of memory settings, so performance cannot be achieved.
*This text is a machine translation from Japanese to English, so I am very sorry if the text is strange.