Laptops General - Read Only

Anonymous
Not applicable

Dell Latitude E5540 RAM upgrade problems

Hello, I have a weird problem with upgrading RAM. The maschine is Dell Latitude E5540, originally came with 4 GB RAM. I wanted to upgrade to 16 GB (it supports max. 16 GB) so I've bought two 8 GB Crucial RAM.

www.crucial.com/.../ct102464bf160b

The problem is that when I put both RAM sticks into the slots, and start my laptop, it turns on, says that RAM amount has been changed, gets to Windows logo (it's Windows 10, upgraded from original Windows 7) and turns off, then turns on again and does the same, like an infinite loop.

But, when I put one RAM on one slot, it works normally, same when I put 4 GB + new 8 GB stick. I've tried all combinations, all sticks and slots, and the problem still occurs.

Reseated CMOS battery, reseated RAM slots, bought correct RAM modules...

I guess it's something in BIOS that causes the problem, but can't figure it out. And BIOS is the newest version.

Please help. :( Thanks in advance

Replies (8)
Moderator
Moderator

Hercules330121,

Below are the memory specs and configurations for the Latitude E5540.

Memory Module Connector 2 SODIMM slots
Memory Module Capacity 2GB, 4GB, or 8GB
Memory Type DDR3L SDRAM 1600MHz
Min to Max Memory 2GB to 16GB
Memory options
2G 1600MHz DDR3 Low Voltage (1x 2G)
4G 1600MHz DDR3 Low Voltage (1x 4G)
8G 1600MHz DDR3 Low Voltage (2x 4G)
16G 1600MHz DDR3 Low Voltage (2x 8G)

Anonymous
Not applicable

Thanks for the answer...

I've written that I've bought the right modules, also gave the link. they work, but not both of them at the same time.

Anyone else? It's unbelievable that nobody knows about this problem :(

Anonymous
Not applicable

Is there anything I can try in BIOS? Or I've spent 65$ for nothing :(

10 Diamond

If both modules work in both sockets by themselves, chances are you have one socket that's starting to go bad and is out of tolerance -- it can't handle all the memory lines.

Replace the mainboard.

Anonymous
Not applicable

But how the *** 4GB on one socket, and 8 GB on another work, both combinations. Now I have 12 GB RAM.

Anonymous
Not applicable

So, is there anything I can do? I've started memory test, passed 2-3 times with no errors. I saw other people having this problem, but never found the solution. If mainboard needs to be changed, should I be worried that my laptop will stop working suddenly?

Anonymous
Not applicable

This is serious, I've spend 65$ for nothing, please, what should I do?

Anonymous
Not applicable

PROBLEM SOLVED

So, I've bought another 8 GB SO-DIMM (same specs) but Samsung, not Crucial. AND IT WORKS!

Now I have one Crucial 8 GB and one Samsung 8 GB slots. Works perfectly. It's weird that paired slots from one manufacturer don't work, but this combination does.

Thanks :)

Top Contributor
Latest Solutions