RAM upgrade HP pavillion dv6 2140el

[marco_depa]

Hi,

I would like to freshen up my Notebook Hp Pavillion dv6 replacing standard 2x2Gb RAM with 2x4Gb. I have tried with these:

>> HyperX Impact HX316LS9IB/4 memoria 4GB 1600MHz DDR3L CL9 SODIMM 1.35V   but at boot up system crashed providing error message KERNEL SECURITY CHECK FAILURE

I was told frequence was wrong (1600) compared to original therefore I baught the second pair 1333Mhz which is exactly the same Frequence PC mounts from factory. I baught these two:

>> Kingston KCP313SS8/4 Memoria RAM da 4GB, 1333MHz, DDR3, 1.5V, CL9, Nero 

unfortunately same problem:  KERNEL SECURITY CHECK FAILURE

Original RAM are: ELPIDA DDR3 SO-DIMM 2GB Memory Ram PC3-10600S-9-10-F1

Help!

Thanks a bunch,

Marco

[Huffer · Accepted solution]

It's that i7 first generation machine and is very finicky about memory. It will take 8 gigs but the proper memory is actually DDR3-1066 also known as PC3-8500. 

Memory modules, PC3, 1066-MHz FSB ■ 4096-MB 579156-001

http://www.amazon.com/Corsair-2x4GB-DDR3-Laptop-Memory/dp/B001UNI80A/ref=sr_1_13?ie=UTF8&qid=1464004...

If this is the memory you installed:

http://www.macmall.com/p/Kingston-DIMM-Memory/product~dpno~13790966~pdp.baadcedd

It is high density 4 black blocks per side and there is all kind of documentation of issues with it on your model series. 

The memory must have 8 black blocks per side (low density) to play nice with the HP. 

If this is "the Answer" please click "Accept as Solution" to help others find it. 

[marco_depa]

Thanks for your prompt feedback. So the problem with the one I have used is that it has 8 modules on one side and only 4 on the other...?  OK I will return it back to Amazon and purchase the new one and let you know. Thanks for now!

[marco_depa]

Well done man!  I have followed your advice, returned the RAM and purchased those you suggested and it worked. No problems at all. You have been great in providing such a spot-on solution. Congratulations, this is what we need in these forum!  Many thanks for your help. Problem Solved!!!