RAM Proprietary ? Presario Notebook

[Groonx]

Hi,

 

I'm intending to add some life to a friend's Compaq Presario v2030us. At the moment it has its original 512MB in one slot. There are 2 slots.

 

The manual says it takes

1024MB = Part 367775-001

512MB = Part 367774-001

256MB = Part 367773-001

 

I have 3 questions:

 

1. Can I simply add a 1024MB module so she has a 512 + 1024 = 1536? Or does RAM get upset when you try to run unequal sticks?

 

2. Is her Compaq Presario RAM proprietary—I am inclined to think it might be—or can I buy anything I want?

 

3. When I purchased my Asus Eee 901, I replaced its single 1 GB RAM stick with a 2 GB stick, so I have the original. Would it be usable in her Compaq Presario? The Eee 901 RAM = DDR2 1GB-667 (SSY2128M8-J6EE)

 

Thank you.

[Wired]

1. Not recommended.

2. No, HOWEVER, that doesn't mean just any memory will work. Only one Corsair stick is listed:

Guaranteed-Compatible Memory for your Hewlett-Packard Presario V2030US

VS512SDS266 512 MB

 

3. Doubtful.