7550 RAM Issue

Thank you! We have received the required details. We will work towards a resolution. In the meantime, you may also receive assistance or suggestions from the community members.

Yes slots under keyboard (I think they are listed as A and C) have 2x16 3200.

Rear has 2x32 3200 as well.  This works.  (Which is odd since you only show 64gb 3200).

Of course - when I go to the site - I can't even order this config any longer - as I have the i9 chip, and the i7s (and Xeon) are the only CPUs, and 2933 the only speed available.

So odd.

rob_gillis70,

Are you  still using the 2X16 GB that came with the system? 

rob_gillis70,

Does your memory meet these specs below. You  can also click here to view the online manual.

able 1. Memory specifications
Description Values
Slots 
Four-SODIMM slots

Type 
Dual channel DDR4

Speed 
2666 MHz, 2933 MHz, 3200 MHz

Maximum memory 
128 GB

Minimum memory 
8 GB

Memory size per slot 
4 GB, 8GB, 16 GB, 32 GB

Configurations supported 
8 GB, 1 x 8 GB, DDR4, 2666 MHz, ECC, SODIMM
16 GB, 1 x 16 GB, DDR4, 2666 MHz, ECC, SODIMM
16 GB, 2 x 8 GB, DDR4, 2666 MHz, ECC, SODIMM
32 GB, 1 x 32 GB, DDR4, 2666 MHz, ECC, SODIMM
32 GB, 2 x 16 GB, DDR4, 2666 MHz, ECC, SODIMM
32 GB, 4 x 8 GB, DDR4, 2666 MHz, ECC, SODIMM
64 GB, 4 x 16 GB, DDR4, 2666 MHz, ECC, SODIMM
128 GB, 4 x 32 GB, DDR4, 2666 MHz, ECC, SODIMM
8 GB, 1 x 8 GB, DDR4, 2933 MHz, ECC, SODIMM
16 GB, 1 x 16 GB, DDR4, 2933 MHz, ECC, SODIMM
16 GB, 2 x 8 GB, DDR4, 2933 MHz, ECC, SODIMM
32 GB, 1 x 32 GB, DDR4, 2933 MHz, ECC, SODIMM
32 GB, 2 x 16 GB, DDR4, 2933 MHz, ECC, SODIMM
32 GB, 4 x 8 GB, DDR4, 2933 MHz, ECC, SODIMM
64 GB, 4 x 16 GB, DDR4, 2933 MHz, ECC, SODIMM
128 GB, 4 x 32 GB, DDR4, 2933 MHz, ECC, SODIMM
8 GB, 1 x 8 GB, DDR4, 2933 MHz, Non-ECC, SODIMM
16 GB, 1 x 16 GB, DDR4, 2933 MHz, Non-ECC, SODIMM
16 GB, 2 x 8 GB, DDR4, 2933 MHz, Non-ECC, SODIMM
32 GB, 1 x 32 GB, DDR4, 2933 MHz, Non-ECC, SODIMM
32 GB, 2 x 16 GB, DDR4, 2933 MHz, Non-ECC, SODIMM
32 GB, 4 x 8 GB, DDR4, 2933 MHz, Non-ECC, SODIMM
64 GB, 4 x 16 GB, DDR4, 2933 MHz, Non-ECC, SODIMM
128 GB, 4 x 32 GB, DDR4, 2933 MHz, Non-ECC, SODIMM
8 GB, 1 x 8 GB, DDR4, 3200 MHz SuperSpeed, Non-ECC, SODIMM
16 GB, 1 x 16 GB, DDR4, 3200 MHz SuperSpeed, Non-ECC, SODIMM
16 GB, 2 x 8 GB, DDR4, 3200 MHz SuperSpeed, Non-ECC, SODIMM
32 GB, 4 x 8 GB, DDR4, 3200 MHz SuperSpeed, Non-ECC, SODIMM
64 GB, 4 x 16 GB, DDR4, 3200 MHz SuperSpeed, Non-ECC, SODIMM

Dell-Jesse L

First - like I said - it works fine in the slots on the back of the system.  System came with 32GB (2x16) I added the 2x32gb in rear slot and system now shows 96gb (32 under the keyboard and 64 in back).

I can put any of the new 32gb chips in the rear - they all function fine.  But if you put any of them in the slots under the keyboard, the system no longer boots.  This means all 4 sticks are fine to the system (or else it would recognize them in the rear).  But for some reason, placing them in the shipped slots fails.  No message on screen, just LED flash for memory error.

They don't work if I use just 2 of them alone, all 4 of them, or if I put 2 new sticks under keyboard and move old chips to rear.

Its like the system is locked into expected 16gb chips in those slots and fails to accept anything else.

Now then - your statement/config above is odd.  My configuration - WORKING configuration -  is 2x16 3200 and 2x32 3200 = 96GB 3200 RAM.

That is not covered in any of your configs.  Are you saying you cannot put 128gb in unless youi lower the speed?  Odd that your config says max of 64gb at 3200 - yet I am on 96gb.  Can you explain that?

rob_gillis70,

Following up to see if the issue with the memory is resolved? Let us know.

Dell-Jesse L

Welcome to the Dell Community @rob_gillis70 

I know it should not make a difference but, do the 4 SIMM's have the same number of chips per side???

Best regards,

U2

rob_gillis70,

Glad to hear your issue is resolved.  Let us know if you need any further assistance.

Hi all,

Similar issue with precision 7750,
i7-10875H

Came with 32gb (2x16gb) installed under keyboard:
370-AEZK : 32GB, 2x16GB, DDR4 3200MHz Non -ECC Memory
(CCT36 - DIMM,16G,3200,2RX8,DDR4,XMP,NE)

Some time later, was ordered another 2 Memory Modules (16gb+16gb):

https://www.dell.com/en-ie/work/shop/dell-memory-upgrade-16gb-2rx8-ddr4-sodimm-3200mhz/apd/aa937596/memory

and when i installed them I get the same "2 amber + 5 white" flash (memory error).
tried to swap them + to put only one module - but got the same error "2 amber + 5 white"

Once I remove them everything works as it should.

BIOS updated to the latest version (like all other updates)

Thank you

Update=I agree to try this out. However, as I travel often, this will not be possible now but in 1-2 months time, when I am in Ireland. And if this does not sort out the issue then I will opt for returning them and ask for a refund.

Thank you in advance!

I am having the same issue with a Dell precision 7540. 2x16 GB chips under the keyboard, installed to 2x 32 GB under the chassis and it worked for 96 gig. I bought two more 32 gig to make it 128 as the system supports it and the machine froze. I went through memory diagnostics and came up with many errors most of them were on dimm D on this 7540.

I could not get it to boot with 128 however going back to the original configuration of 96 worked fine.

I am going to order ram from a different vendor and see if this solves the problem.