u can't customize like dell to chose what processor u want, want to use graphic card or not,
before buy new laptop, batter check, the processor and graphic card is suit to u or not cos u cant upgrade this 2 thing..

but like other laptop, u can upgrade RAM and Hard Disk only.

Re: *OFFICIAL: HP dv5z Owners Lounge* **PUMA Goodness**
For what it's worth - my contact at HP passed my questions on to the notebook team, and their reply was very explicit - Hybrid Crossfire and PowerExpress are not mandatory features for Puma laptops, and they must be designed into the motherboards to be supported. None of the HP AMD Puma laptops have these features; there is no way to enable them by any BIOS upgrade etc.

Sorry for the bad news.

u can't customize like dell to chose what processor u want, want to use graphic card or not,
before buy new laptop, batter check, the processor and graphic card is suit to u or not cos u cant upgrade this 2 thing..

but like other laptop, u can upgrade RAM and Hard Disk only.

yes. processor and graphic card is ok for me.
but i would like to upgrade ram from 1GB to 2GB like that also cannot?

Sure you can bro.

hu......
that is good. then why replies above say that no customization?
i mean when i buy CQ40, the ram is 1GB, but i want to upgrade to 2GB before i buy it
can?

You just ask the people at the shop (or booth in PCFair) to upgrade the RAM to what ever size that you want and you good to go.

thank you very much.
then if i buy online via hp website, i can't upgrade my ram?

No you can't.
Why would you want to buy rams from them anyway? It's way more expensive. When I bought my notebook at a HP store I asked the salesperson whether they're selling rams as well. I was holding quite a few pricelists in my hand when I asked. The guy straightaway said "they sell way cheaper, better buy outside".

Here:

Hardware
Hardware Q&A

No you can't.
Why would you want to buy rams from them anyway? It's way more expensive. When I bought my notebook at a HP store I asked the salesperson whether they're selling rams as well. I was holding quite a few pricelists in my hand when I asked. The guy straightaway said "they sell way cheaper, better buy outside".

you mean buy ram from outside is better?
i found that 115-AU is very cheap an suitable for me as long as I upgrade the ram
however, the ram is 667 MHz or can I change it to 800MHz 2GB?
or I just buy a 2GB add 1GB original to make 3GB 667MHz?
would it be better than 2GB 800MHz?

but 115-au does not have bluetooth. can i demand the saleman in pcfair to add in?

CQ40-115AU only have 1 SO-DIMM slot, the max is 2GB

pls correct me if i'm wrong.

for other model support two SO-DIMM, i think best combo 1GB+2GB "since 32-bit  OS, won't able show fully 4GB"