Question 32gb 2×16gb ddr4 ram - 2 count (pack of 1) vs 2×16gb kit ?

[SkyNetRising]

You have to check available options in your motherboard BIOS.
It may allow manual DRAM configuration.
Still won't go higher than 2933mhz.

 

[maxim45001]

My mobo doesn't support xmp ...and yet my current ram runs at 2666mhZ

You have to check available options in your motherboard BIOS.
It may allow manual DRAM configuration.
Still won't go higher than 2933mhz.

So..without xmp I could still achieve 2933mhz ? I just don't want to waste money that's all

 

[SkyNetRising]

So..without xmp I could still achieve 2933mhz ? I just don't want to waste money that's all

Can you check available dram configuration options in BIOS?
If possible, make screenshots and show here.
(upload to imgur.com and post here)

 

[maxim45001]

Can you check available dram configuration options in BIOS?
If possible, make screenshots and show here.
(upload to imgur.com and post here)

That's bizzare - there's literally not even one setting dedicated to ram/memory in the bios

 

[SkyNetRising]

Dell/HP prebuilts usually have very limited bios configuration options.

This means only modes listed in SPD table (written in dram) will be available.
Can you show cpu-z - memory and spd sections with your current ram?

 

[maxim45001]

Dell/HP prebuilts usually have very limited bios configuration options.

This means only modes listed in SPD table (written in dram) will be available.
Can you show cpu-z - memory and spd sections with your current ram?

https://imgur.com/a/0Pbkak1

View: https://imgur.com/a/0Pbkak1

 

[maxim45001]

Dell/HP prebuilts usually have very limited bios configuration options.

This means only modes listed in SPD table (written in dram) will be available.
Can you show cpu-z - memory and spd sections with your current ram?

https://imgur.com/a/v9cWH7B

View: https://imgur.com/a/v9cWH7B

 

[SkyNetRising]

Your DRAM modules have JEDEC and XMP entries for 2666mhz mode.
That's why it's able to run at 2666mhz.
Can't tell, if it's using JEDEC entry or XMP.
Values are the same.

 

[thestryker]

When talking prebuilts from large OEMs I tend to check Crucial to see if they have compatibility. While you won't necessarily end up with something as fast as an off the shelf it will usually work correctly. If your system doesn't support XMP (which I'm pretty sure yours does not) then buying DRAM gets really tricky due to needing JEDEC SPD timings which XMP kits rarely have over 2133.

You should be able to get these modules elsewhere, but can use this so you can match model numbers:
https://www.crucial.com/compatible-upgrade-for/dell/xps-8940

 

[maxim45001]

When talking prebuilts from large OEMs I tend to check Crucial to see if they have compatibility. While you won't necessarily end up with something as fast as an off the shelf it will usually work correctly. If your system doesn't support XMP (which I'm pretty sure yours does not) then buying DRAM gets really tricky due to needing JEDEC SPD timings which XMP kits rarely have over 2133.

You should be able to get these modules elsewhere, but can use this so you can match model numbers:
https://www.crucial.com/compatible-upgrade-for/dell/xps-8940

Basically - if I buy any other ram that's not on the list I would automatically only get 2133mhz ? Like this : https://www.amazon.com/Corsair-VENG...n&qid=1726172314&sprefix=,aps,188&sr=8-3&th=1

 

[thestryker]

Basically - if I buy any other ram that's not on the list I would automatically only get 2133mhz ?

In my experience with XMP kits that's likely to be the case. The only modules I would bet on having multiple higher JEDEC SPD timings coded would be 3200 JEDEC kits.

Something like this would probably work as well since it's not an XMP/EXPO kit: https://www.amazon.com/dp/B08HLZ2P7M

 

[maxim45001]

In my experience with XMP kits that's likely to be the case. The only modules I would bet on having multiple higher JEDEC SPD timings coded would be 3200 JEDEC kits.

Something like this would probably work as well since it's not an XMP/EXPO kit: https://www.amazon.com/dp/B08HLZ2P7M

cl22 though ... Isnt 16 and less , recommended ? All of this headache because of the motherboard smh

 

[thestryker]

cl22 though ... Isnt 16 and less , recommended ? All of this headache because of the motherboard smh

If you can't run XMP and cannot change your memory settings that means you're stuck with JEDEC timings. These are JEDEC timings so while yes lower is better you do not have a choice in the matter.

 

[maxim45001]

Ok I want to close this thread as this goes no where . Last question - which speed should I buy If I'm very restricted ? 2666mhz ? 2933mhz ? 3200mhz or 2133nhz , cl16 or cl22?

 

[SkyNetRising]

which speed should I buy If I'm very restricted ? 2666mhz ? 2933mhz ? 3200mhz or 2133nhz , cl16 or cl22?

Get 3000mhz or 3200mhz CL16.
Should cost about the same.

 

[--SID--]

My mobo doesn't support xmp ...and yet my current ram runs at 2666mhZ. So ....if I buy the new ram my speed will be even lower ? It all seems very complicated

You need to buy RAM with JEDEC profiles. Any 3200C22 JEDEC RAM has a 2933 profile.

 

[maxim45001]

You need to buy RAM with JEDEC profiles. Any 3200C22 JEDEC RAM has a 2933 profile.

So this doesn't apply ? https://target.georiot.com/Proxy.as...ubtag=tomshardware-row-1085551834307924643-20

 

[thestryker]

So this doesn't apply ?

The spec sheet shows 2133 which means that's what you'd get if you bought it.

https://www.corsair.com/us/en/p/mem...ry-kit-black-cmk32gx4m2e3200c16#tab-techspecs

As I explained before you have to make sure there are proper JEDEC profiles on the memory you buy otherwise you're not guaranteed to be able to utilize it properly in your system.

 

[maxim45001]

The spec sheet shows 2133 which means that's what you'd get if you bought it.

https://www.corsair.com/us/en/p/mem...ry-kit-black-cmk32gx4m2e3200c16#tab-techspecs

As I explained before you have to make sure there are proper JEDEC profiles on the memory you buy otherwise you're not guaranteed to be able to utilize it properly in your system.

I don't really know what JEDEC is ...look for the spd speed of 2933mhz ?

 

[thestryker]

I don't really know what JEDEC is ...look for the spd speed of 2933mhz ?

Look for kits that don't advertise, but really as has already been said multiple times 3200 CL22 as that's JEDEC timing for 3200.

 

[SkyNetRising]

I don't really know what JEDEC is ...

Look in your screenshot - post #32.
There is SPD table with JEDEC and XMP profile values.
Those are settings, that can be used without manual configuration.
If XMP or manual configuration is not available, then only JEDEC settings can be used.

Example.
Here with XMP enabled - ram will operate at 3000mhz, but without XMP or manual configuration it will work only at 2133mhz.

Spoiler

 

[maxim45001]

Look for kits that don't advertise, but really as has already been said multiple times 3200 CL22 as that's JEDEC timing for 3200.

Loke this one ?3200mhz cl22 https://www.amazon.com/Crucial-2x16...efix=2x16gb+ddr4+3200mhz+,aps,208&sr=8-5&th=1

 

[thestryker]

Loke this one ?3200mhz cl22

Maybe, but it's an XMP kit so maybe not (it should, but them not specifying doesn't make me want to say yes). A lot of memory manufacturers simply don't say which JEDEC timings are available and I know Corsair and G.Skill use 2133 on all of their XMP/EXPO DDR4 kits while Kingston uses 2400.

These both are JEDEC rated kits (teamgroup only specifically mentions 2400/2666/3200 but I believe that's the separate kits they sell as opposed to the timings available):
https://www.amazon.com/Crucial-2x16GB-Desktop-Memory-CT2K16G4DFRA32A/dp/B08C4LXXCJ/
https://www.amazon.com/TEAMGROUP-3200MHz-PC4-25600-Unbuffered-Computer/dp/B086X2KM1V/

 

[maxim45001]

Maybe, but it's an XMP kit so maybe not (it should, but them not specifying doesn't make me want to say yes). A lot of memory manufacturers simply don't say which JEDEC timings are available and I know Corsair and G.Skill use 2133 on all of their XMP/EXPO DDR4 kits while Kingston uses 2400.

These both are JEDEC rated kits (teamgroup only specifically mentions 2400/2666/3200):
https://www.amazon.com/Crucial-2x16GB-Desktop-Memory-CT2K16G4DFRA32A/dp/B08C4LXXCJ/
https://www.amazon.com/TEAMGROUP-3200MHz-PC4-25600-Unbuffered-Computer/dp/B086X2KM1V/

Thank you ..will buy the first one

 

[maxim45001]

Look for kits that don't advertise, but really as has already been said multiple times 3200 CL22 as that's JEDEC timing for 3200.

Wouldn't cl22 cause me problems / lowered performance ? Everyone on the internet is against 22 and recommends 16 . I need to choose between cl16 2133mhz and 2933mhz cl22 ?