Maximum installable Ram in Hp nx9420

[AlainBastien1]

Hi,
Due to price drop in Memory DDR, what’s the maximum installable RAM will the hardware and OS support in my HP nx9420 64bit ?

Thanks

Alain

[REO51ST]

@AlainBastien1

Memory: Maximum  Upgradeable to 4096-MB maximum (2048-MB SODIMM in slots 1 and 2) 

Your manual here.

http://h10032.www1.hp.com/ctg/Manual/c01058816

Your specs here.

https://support.hp.com/us-en/product/hp-compaq-nx9420-notebook-pc/1839153/document/c00619708

REO

[AlainBastien1]

I have read in a forum

/-
Maybe the manufacturers claim a lower capacity because higher capacity modules were not available at the time of manufacture?
-/

The commentator was referring to a MacBook and upgraded more than Apple claimed and it worked.

Does it apply to this HP laptop.

Thanks

[REO51ST]

@AlainBastien1

What CPU do you have installed???

Are you sure you are running a 64Bit OS ???

REO

[AlainBastien1]

Properties report

Intel Core 2 CPU T7400 @ 2.16Ghz

64-bit Operating System

Thank you

[AlainBastien1]

And if I replace /upgrade the processor with

/-
intel CPU laptop Core 2 Duo T7800 CPU 4M Socket 479 Cache/2.6GHz/800/Dual-Core Laptop processor support 965
-/

It cost only $20/- new !!!

Nothing mentioned in the upgrade section

[Huffer]

It's the 945PM chipset and DDR2-667 memory. That is generally a 2 x 2 max....the 965 chipset could run 2 x 4 gig. 

https://support.hp.com/lamerica_nsc_carib-en/product/hp-compaq-nx9420-notebook-pc/1839153/document/c...

https://support.hp.com/lamerica_nsc_carib-en/product/hp-compaq-nx9420-notebook-pc/1839153/document/c...

The motherboard only can run at 667 fsb so the 800 fsb processor you ask about it a no go. 

The processor is not what limits the memory it is the motherboard chipset.