Ram Frequency Compatibility with 365C Mobo , Pavilion dv7 3110ev

[BILL57]

Hello,

my notebook is Pavilion Dv7-3110ev model with 3GB Ram.

1x1gb Hynix DDR3 PC3-10700 1333hz and 1x2gb Samsung DDR3 PC3-10700 1333hz

but as it seems from the photo below the work at lower frequency (532 Hz)

I would like to add some more RAM (as I search Motherboard supports up to 8GB Ram)

and the combination 1x2gb - 1x4gb is also supported (total 6GB), so I purchased and installed

KINGSTON KVR13S9S8/4 4GB SO-DIMM DDR3 1333MHZ PC3-10600

but the notebook won't boot. I tried every combination with the previous sticks (Hynix & Samsung)

and the new stick alone. The problem still exists. I even loaded defaults from the BIOS setup and still nothing.

Should the RAM Frequncy be at 1066 and buy two sticks (2X4GB DDR3 @1066Hz) for dual channel total RAM 8GB?

Thank you in advance,

Bill

Ram SpecsNotebook Specifications

[visruth]

Hi Bill:


Yes two slots. Upto 8gb max with two 4gb sticks of exact same configuration, voltage and speed as given in Manual

Manual: Page 1-1, 4-17
http://h10032.www1.hp.com/ctg/Manual/c01859666

The only reason I can think of why the RAM you bought did not work is because it is lower density one (only 4 black chips on their module)

For some unknown compatibility reasons, higher density ones (with 8 black chips on the module physically) is reported to be successful in HP notebooks both consumer and commercial especially older models.

You selected: https://www.newegg.com/Product/Product.aspx?Item=N82E16820239311&FM=1

I suggest: search similar ones through online sellers, note the Kingston part number

https://www.newegg.com/Product/Product.aspx?Item=N82E16820139187&FM=1

Yes you could put two 4gb sticks for dual channel boost.

[BILL57]

First of all, thanks a lot for your quick response. It seems that the problem of compatibility is the density

But , how can I check before I purchase if a Ram is low density?

For example I am thinking buying the following (I cannot find the Kingston you suggested in Greece)

MUSHKIN 991644 4GB SO-DIMM DDR3 PC3-8500 1066MHZ ESSENTIALS SERIES

http://poweredbymushkin.com/Home/index.php/catalog/memory/essentials/item/229-ddr3-4/297-991644#spec... It doesn't mention if this is low density? I suppose the criterion is not only the number of the boxes on top of the ram (8 for low density ram sticks)

Thanks again,

Bill

[visruth · Accepted solution]

You have to contact the seller directly to confirm this.

You need higher density RAM with 8 black chips on the module. I think you got confused in your post.

There is no way you can confirm whether a particular module from a particular brand is going to work beforehand even though they have the exact same configuration, speed and voltage as given in manual and the one that is already installed in your notebook.

If the specs of module you chose is correct, if it is of higher density, if it has similar latency (not very important aspect), then that RAM ought to work irrespective of the brand.

But compatibility of modules cannot be fool proof declared in a peer-to-peer public forum like this.

I understand that Crucial brand has their own online scanner, which scans your machine and list guaranteed compatible modules. They usually stand behind their word and accepts return if not compatible.

You could also search the RAM with the HP part number given in the Manual. That should definitely work if it is genuine.