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10 Posts
0
864646
Maximum RAM supported on E6420, i7 Quad Processor laptop running Win 7/64
I have an E6420, i7-2760 2.4Mhz,8MB, OS-W7- 64bit.......used for business when traveling to examine and mark up ACAD drawings usually viewed in the office on a Precision Work Station with 32GB and a big screen. My question to anyone who knows is this. Dell technical support has told me on more than one occasion that this machine supports a maximum of 8GB period. That it is a waste of time to upgrade to 16GB because the system won't support it. I really don't want to experiment if its true. More often than not initial technical responses I've received over the years from DELL have been wrong so it pays to be persistant until convinced.
I'd like to put 2-8GB chips in it betting that additional RAM will speed up screen regenerations given the video processor is what it is. Anyway, if anyone knows if what Dell is telling me is fact please chime in? If anybody knows for sure this laptop and OS is incapable of addressing 16GB please let me know?
If it will accept them I'd like an informed opinion about which speed would be preferred, 1333 or 1666. I understand faster is usually better but if there Is there a latency issue perhaps one is a better fit for this machine. If this is a total waste of time and money, I'd like to know that too.
Any constructive advice, opinion or comment will be appreciated.
Boris_yo
66 Posts
0
February 24th, 2013 07:00
Agree, configurations may vary and who knows, maybe it also depends on when components were manufactured so this can also be a gamble unless you ensure. The best way to ensure would be to take your friend's memory and see if your laptop works with it or ask to test in a computer repair center.
ckaym
1 Message
1
December 4th, 2013 21:00
Hi guys,
Just to confirm that I've also upgraded my E6420 (i5-2520M CPU @2.5GHz ) with two banks of 8GB each of Samsung DDR3 1600MHz RAM (PC3-12800) and they passed all tests and seems to be working fine at full speed (1600MHz).
Thanks to all of you, these posts made me take the risk to upgrade my laptop memory! :)
Cheers!
TimeVIrus
4 Posts
0
June 10th, 2015 07:00
Isn't that only dependent on the CPU? I mean the Intel 2820QM supports DDR3 1600. Is there a limitation because of the mobo, that allows no mare than 1333?
johansenb
2 Posts
0
September 24th, 2015 18:00
confirmed working with the Corsair Vengeance 1600 MHz 8GB modules on an E6420 Intel(R) Core(TM) i5-2540M CPU @ 2.60GHz. BIOS reports 1333MHz.
Misant777
1 Message
0
September 29th, 2015 21:00
I ordered the same Corsair 8GB modules and it recognizes them just fine! :D
TimeVIrus
4 Posts
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October 3rd, 2015 08:00
I own a Dell E6420 w/ i5 2520m and it ONLY sees 8 GB (with 2x8 GB cards) @ 1333MHz of the 16 GB on 2 cards that I installed, I would really like to have the 16 but this mobo does NOT support 16 GB RAM! You need to specify what mobo and BIOS not just the model of laptop you have lol. This is whats in mine: Mobo: Dell model: 0K0DNP v: A01 Bios: Dell v: A21. Would be nice to know if yours differs, do you know how to find this information on your laptop? This Mobo can handle up to the i7 2820QM which will allow the Crucial RAM I bought to run @ 1600MHz but still the mobo limits the total amount of RAM to 8 GB. I would really appreciate knowing more of your hardware so that I might improve this laptop, if I can and $ permits. Though OS would not matter, Win 7 & Linux also only see 8 of the 16. BIOS of course sees 8 GB @ 1333MHz.
Thanks.
TimeVIrus
4 Posts
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October 18th, 2015 12:00
You are an idiot! He asked what CPU, Mobo, and BIOS...You answered with CPU, & QM67 Express Chipset! I have these as well and I installed 2 x 8GB cards that COULD go 1600MHz IF IF IF the CPU can do that. As we all know, I hope, the 2540m does not support 1600MHz so the RAM would be limited to 1333MHz. I was fine with that in the interim, that is until I bought a 2820QM CPU which DOES support 1600MHz. What this computer sees with the 2540M CPU is 8GB RAM @ 1333MHz NOT - I say again NOT, 16GB RAM @ 1333MHz. Not even 16GB RAM @ 667MHz.
It would be nice if you answer questions asked. What Motherboard?!?!!? What BIOS!??! - Or are you a RAM retailer lying about what some random E6420 would see, thus hoping to get some random sucker to buy more RAM than usable? I would be wiling to *** my life on the QM67 chipset might possibly be used on ANY of the motherboards Dell put in this machine. Please use your head for more than a hat rack! lol.
Do you not know how to find out what motherboard and BIOS you have? If not I can link you to many 'how to's on it for you, just let me know.
jmsigler2
17 Posts
0
July 20th, 2017 21:00
Samsung 2x4GB replaced with Corsair 2x8GB