7 Posts
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688
Precision 7540 RAM SPEED
I have a 7540 with a Xeon processor.
I have put in new RAM to this compuer from my old 2666 to cruisal 3200.
I have checked and checked and this RAM is compatibal to this computer but I CANT GET THIS RAM TO RUN AT 3200?
Anybody with same problem? This is so annoying.
/KimmoK
filbert
4 Operator
4 Operator
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1.8K Posts
1
January 20th, 2023 10:00
According to Intel's specifications, that processor runs memory at maximum 2666 MHz.
Panzercat
5 Posts
0
July 12th, 2023 08:00
According to Intel ARK, all Coffee Lake CPUs only support DDR4-2666, from i7 to Xeon to i9
https://ark.intel.com/content/www/us/en/ark/products/191047/intel-core-i79850h-processor-12m-cache-up-to-4-60-ghz.html
https://ark.intel.com/content/www/us/en/ark/products/192989/intel-xeon-e2276m-processor-12m-cache-2-80-ghz.html
https://ark.intel.com/content/www/us/en/ark/products/192990/intel-core-i99980hk-processor-16m-cache-up-to-5-00-ghz.html
But, Dell Precesion 7540's official manual says it supports DDR4-3200
https://www.dell.com/support/manuals/en-us/precision-15-7540-laptop/precision_7540_setupspecs/memory?guid=guid-c8a070cc-7772-48fd-bddc-84b148afe28e&lang=en-us&lwp=rt
And I saw an user of Dell Precision 7740 has its RAM running at DDR4-3200, I think 7540 can run at 3200 too. (He is a i9-9980HK, not Xeon E2276M)
JOcean
7 Technologist
7 Technologist
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12.1K Posts
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January 20th, 2023 04:00
Do you have all 4 RAM slots filled (you did not state the total RAM in the system)? If you have 2666 and 3200 installed in the system then all RAM will run at 2666.
ejn63
10 Elder
10 Elder
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23.3K Posts
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January 20th, 2023 05:00
The other thing you need to post is the CPU model that's installed. The CPU is what controls the memory speed. Chances are high that a system which shipped with 2666 MHz RAM has a CPU that cannot run RAM at 3200 MHz -- meaning that the new RAM simply downclocks to match the memory controller (which is aboard the CPU) speed.
KimmoK74
7 Posts
0
January 20th, 2023 05:00
All 4 RAM-slots used same RAM in each of them 32 gb
Crucial 32GB DDR4-3200 SODIMM
CT32G4SFD832A
Configuration ID: CT15545421
KimmoK74
7 Posts
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January 20th, 2023 10:00
Processor: Intel(R) Xeon(R) E-2286M CPU @ 2.40GHz 2.40 GHz
KimmoK74
7 Posts
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January 22nd, 2023 23:00
Thank you all! I found it aswell on intels site.
/KimmoK
KimmoK74
7 Posts
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August 7th, 2023 01:00
Thank you all. This thred can be closed now.
/Kimmo
Panzercat
5 Posts
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November 4th, 2023 05:20
I have a Dell 7540 with Xeon E2276m，I tried SAMSUNG and Crucial's DDR4-3200，Both still ran at 2666.
Then, I upgraded CPU to i9 9980HK（using BGA rework station）, then I bought two SAMSUNG DDR4 3200 32G RAM, this time they were running at 3200