Adding RAM on Precision 7760

Question

I purchased a Precision 7760 laptop a few weeks ago and I am very happy with it. Strange enough, Dell could only deliverer it with 16GB RAM and I need at least 32GB for science computing, so I bought a pair of 2x8GB memory sticks from Crucial. The new memory sticks have exactly the same specs as the existing ones and are also the ones recommended on Crucial's web site for the 7760. After installation and fire-up, the BIOS noted that there had been a change of RAM and asked whether to continue or go to the BIOS setup. I chose continue and when Windows 11 came up, I saw that the RAM frequency had changed to 2933MHz, although all RAM sticks were for 3200MHz. The full memory came up correctlty at 32GB. I then turned the computer OFF and ON, and it would no longer reboot. It simply died, whenever I tried to boot. I took out the new RAM, and the computer came back to the old state and worked again. Very strange, indeed. It's frustrating to run a powerhorse as the 7760 with only 16GB. Is there anything I can do to use the Crucial memory sticks? Crucial is one of the leading memory stick suppliers and it seems unlikely that there are errors in their memory sticks. Must I buy new from Dell, and how can I be convinced that it will work with Dell sticks (rumors say that they are actually from Kingston?).

JOcean · Answer

The specs for the 7760 do indeed call for 3200 MHz RAM. The fact that the system clocked down to 2933 makes me wonder if some of the RAM modules are not 3200 but are 2933.  Also since you are trying to match Crucial with Dell RAM (which is very probably not Micron) leads me to believe the problem is RAM that is not compatible with each other or with the system. The best way to purchase RAM is in a matched kit, in this case 4 sticks of 8 GB 3200 RAM from Crucial. Possibly return the 16 GB of Crucial and replace it with 32 GB from Crucial.

torbense · Answer

Thanks for the help! It scares me to change also the two primary memory modules because I would have to tear the whole computer apart, not only the back cover...

Will1966 · Answer

Was thinking about buying 7760.  It is nice to know that two of the memory slots are on the top of the board and not easy to access.   I wanted to remove the Dell memory and add 64K.   Didn't really want to remove the mother board in order to change out the memory.

justin.case · Answer

You won't. You would just have to remove 8 screws on the keyboard, and you got access to the other 2 memory banks.

I am also in the process of doing this; if you read the technical users manual, you will find what you need.

entesar · Answer

I have Processor : 11th Gen Intel(R) Core(TM) i9-11950H @ 2.60GHz 2.61 GHz
latop type : PRECISION 7760

and looks like I have 2 slots of 4 RAMs is 32 , I need to upgrade to 64 or 128
Can I add another 32G or it should be same as 16 per slot and how can I know they type of my RAMs from my laptop without opening it ?

TerranTechCenter · Answer

I have a Precision 7760 with an i9-11950H CPU with 2 x 16GB of RAM installed from the factory. This 32GB of RAM runs at 3200MHz, but when I tried to install 2 x 16GB of Dell RAM modules in the last 2 slots, the RAM slowed to 2933MHz. The fact that this CPU runs at 3200MHz with factory modules but slows anytime additional RAM is installed, appears to be a defective BIOS/CMOS situation.

Dell's own documentation shows that this CPU should run this memory at 3200MHz.

messaieh · Answer

@torbense il ya 2 barette sous le calvier et 2 sous le capeau

mes c'est facile just faire attontion a la nap du clavier il ya des video sur youtube si besoin

le mien je les upgarder a 80GB

3x16+32=80GB

au final j'ai mis 64GB c'est super pour des montage video et photoshop

messaieh · Answer

@entesar pas  besoin  de quelle  quantité de  mémoire  64GB  c'est largement  sufusont

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