RAM and SSD upgrade

I have two questions about my dv7-6b77dx.
1) RAM Upgrade:
I want to upgrade my memory to 4+4 from 2+4. Do I have to get the same exact 4GB RAM (CPU-Z says it's Samsung M471B5273DH0-CH9) or can I get any 4GB RAM? I'm asking this because I'm not sure if the two modules have to be identical for dual channel memory. Also, new Samsung models are 30nm with less power consumption while my 4GB is 40nm. Would that be a problem if I connected a 30nm and a 40 nm?
2) SSD:
I want to make sure AHCI is enabled for the new SSD. I googled it and it says it should be configurable in the BIOS but my BIOS doesn't have that sort of a setting. My processor is Core I7 2670QM and I couldn't get anything about the chipset from CPU-Z other than "Intel". How can I enable AHCI or check if it's enabled?
Thanks a lot!
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burqq wrote:
I have two questions about my dv7-6b77dx.
1) RAM Upgrade:
I want to upgrade my memory to 4+4 from 2+4. Do I have to get the same exact 4GB RAM (CPU-Z says it's Samsung M471B5273DH0-CH9) or can I get any 4GB RAM? I'm asking this because I'm not sure if the two modules have to be identical for dual channel memory. Also, new Samsung models are 30nm with less power consumption while my 4GB is 40nm. Would that be a problem if I connected a 30nm and a 40 nm?
If you want a memory upgrade to work the first time it is installed always purchase and install a matched pair of identical modules. Don't mix and match manufacturers or modules of different capacities or configurations.
2) SSD:
I want to make sure AHCI is enabled for the new SSD. I googled it and it says it should be configurable in the BIOS but my BIOS doesn't have that sort of a setting. My processor is Core I7 2670QM and I couldn't get anything about the chipset from CPU-Z other than "Intel". How can I enable AHCI or check if it's enabled?
The installed chipset is the Intel HM65 Express chipset. Your notebook does support SSD drives. Normally you can verify that ACHI is being used by checking the BIOS configuration. It is unfortunate, but an HP BIOS does not gve you the ability to configure SATA as IDE (emulation) or AHCI. You can use a free utility called PCWizard 2010 to see what disk controller is installed and the mode it is operating in. The following image is from within Windows 7 and the PC is a desktop with a ASUS Crosshair IV Formula motherboard
Thanks a lot!
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Solved!
Go to Solution.

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i am looking to make the switch from pc to mac and have been eyeing the MBP 13". I would like to know whether it is fine to add RAM and SSD myself? any compatibility or warranty problems? what brand/type of RAM and SSD is the best fit? thank you.

Chamar wrote:
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Some (Windows) laptops have easy access to memory and disk slots that do not necessitate taking the complete back cover off. However, Apple does not make life easy for you.
However, if you are going for a 'used' machine it is probably worth a try.
Not possibly, definitely wrong, Ram and Hard Drive are considered user replaceable and will not void the warranty if changed.

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For a bit over $600, you could upgrade your particular MBP to 16GB of RAM and a 480 GB SSD and get a remarkable increase in speed. A new MBP would cost about $1,400 more and that's with a maximum of 8 GB of RAM. You'd get a longer warranty with AppleCare with the new one (for another $250). You also have a graphics processor on yours but a new 13" MBP has only the built-in graphics. The only thing I'd miss is the USB 3.0 ports vs the USB 2.0 ports you have.
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Bottom line, will the 8gb of ram be enough to prevent the need to buy another computer for another 5 years or so or do I need to suck it up, return the base model, pay the extra $1,100 and get the 16gb of ram I originally wanted?
Sorry for the long story, I just need some solid advice as money is tight and I want to make the right decision. I'd rather pay $1,100 extra now and not need to buy a new computer for 5-6 years than save the money now but have to buy a whole new computer in 1-2 years. If however, the 8gb ram will still make for a solid computer in a few years, I will gladly save the money.
Thanks in advance for your help. ;-)

Generally (and in my opinion):
1) do not buy any computer you cannot replace the hard drive and the RAM in.
2) do NOT (EVER, EVER, EVER) purchase RAM or expended hard drive from any vendor (like Apple, Dell, etc). they mark up the RAM
purchase the lowest machine that will work for you and upgrade the RAM and hard drive down the road. Just look at the price Apple charges for the upgrade from 4GB to 8 GB:
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