dell optiplex 7000MT DDR5 Ram campatibility

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the Crucial DDR5-4800 16GB is too fast for the Dell 7000.  

The following table lists the memory specifications of your OptiPlex 7000 Tower.

So will you mind help us to report to dell "bios team" have this issue and hope they can fix it at the future bios version ? 

I think is not the main problem that cause cannot power on the computer , I also test KLEVV DDR5 4800 for Optiplex 7000MT and It work fine on the computer , So is that any other solution I can fix it and use the ram??

Dell bios is picky about aftermarket ram not validated by Dell. it can work with some non-Dell ram but not others.  the only potential possible solution is when future bios version comes out, but no guarantee.

A Dell will typically clock down the RAM if it's faster than specs.

If RAM is being mixed - mfrs., speed, capacities, and especially volts, that can cause issue.  At least if speed is different, and the RAM works, a Dell run it at the slowest speed of the slowest chip.

In your case with the Crucial RAM not working, and since it isn't completely within specs anyway, best bet is to return it since it's guaranteed to work.  Find some RAM that is within specs.

I checked the Crucial site.  This isn't the first time the RAM they recommend isn't within exact specs.  A few years ago, when I emailed them about some wrong RAM on their website with proof from a Dell Tech Guide, they never changed it.

A safe bet?  4800MHz RAM as sold by Dell for 7000 MT:  https://www.dell.com/en-us/shop/pfydresults/274763?categoryId=2999&sid=51 

@redxps630 is right about the slightly slower speeds for the MT.  Yet, the micro has 4800MHz specified.

Optiplex 7000 Spec Sheet.pdf 

Re:  will you mind help us to report to dell "bios team" have this issue and hope they can fix it at the future bios version?

this and other discussion in community hopefully might reach Dell engineering eventually if enough users complain, but the only known person with some inside connection is the community manager.

Optiplex 7000 has about 40 users benchmark.  these are validated ddr5 desktop model

7000 MT memory:  DDR5

7000 SFF memory: DDR4  

7000 Micro memory: sodimm DDR4/DDR5

Dell Social Media team has pm me . hope they can help us to report to dell that can resolve my problem 

@redxps630 

The hidden forum is a good place to escalate things, especially when there's certain trends.

a list of DDR5 4800 Module 288pins.  some of the Hynix models below have been validated by users of 7000.

Some people do use it successfully, but careful about KVR (Kingston Value RAM).  It has caused problems in Dell's.  Seems to be hit or miss sometimes.  Regular Kingston RAM is ok.

Hong Kong has no Kingston Value DDR5 So I buy KLEVV and It work on my computer 

Are these all modules that work with the Dell 7000MT or how do I tell? The columns to the far right are blank boxes to me, I don't see any kind of graphic if there's supposed to be one.

Thanks,