I want to upgrade my memory from 2GB to 8GB.

[ruska34]

I want to upgrade my memory from 2GB to 8GB.

I have one 2GB memory card in one of my two memory slots.

I want to install two 4GB memory cards.

My 2GB card has a part number of 2GB 2RX8 PC3-10600U-9-10-BO.  Hynix is manuf.

Can I use two 4GB cards part number of 4GB 2RX8 PC3-10600U-9-10-BO?  Hynix manuf.

Thank You,

ruska34

[Grzwacz · Accepted solution]

Hi,

Windows 7 32 bit is limited to less than four GBs of RAM.

You can do two 2 GB sticks of RAM. 

I would do matching pairs to avoid conflicts or problems. Crucial Memory (Link) should help if you cannot find a matching 2 GB stick of Hynix.

Regards

[ruska34]

Ouch!

I had not considered Windows 7 to be restrictive.

Thank you for your response.

I’ll be getting a 2GB card.

Ruska34

[NonSequitur777]

Ruska34 wait a second, not so fast -4GB of RAM really sucks. You want at least 8GB of RAM.  Your PC does support Windows 7 64-bit.  You should consider at least to upgrade your PC's Windows 7 32-bit to Windows 7 64-bit using a Windows ISO installation disk.  -Don't have a Windows 7 installation disk? Browse the internet (search eBay, for example) for: "Microsoft Windows 7 Pro Professional SP1 X64 Bit DVD with Product Key HD" or something like that, and licenses can be bought cheap.

Once you get an installation disk, you can upgrade to Windows 7 64-bit pretty easy, there are plenty of instructional/tutorial videos available online -like this one: https://www.youtube.com/watch?v=ado9IO234ek

One of the helpful Windows upgrade features is: "Upgrade to a newer version of Windows and keep your files, settings, and programs." -If you were to go this route, the recommendation is to create a backup of your HDD/SSD first.

If this is too technical, stick with getting an additional 2GB RAM stick as suggested earlier.

Good Luck!

[ruska34]

Thank you Nonseqitur777.

I plan on just sticking another 2GB in for now but I may get the ambition to upgrade to 64 bits and will take your advice.

Thanks again,

Ruska34 

[Prométhée]

Hello
forgive me, but just to remove a doubt!
There is mention of 32 bit windows
is there a change somewhere, you made the replacement @ruska34 
Product: Compaq Presario CQ5700Y PC
Operating System: Microsoft Windows 7 (32-bit)

because if this is your computer, according to the product page

Compaq Presario CQ5700Y Desktop 

Operating System

Microsoft Windows 7 Home Premium (64-bit)

• Amount: 2 GB
• Speed: PC3-10600 MB/sec (message as PC3-8500)

• Dual channel memory architecture
• Two DDR3 DIMMs (240-pin) sockets
  • PC3-8500 (DDR3-1066)
  • PC3-10600 (DDR3-1333)

• Non-ECC memory only, unbuffered
• Supports 1GB, 2GB, and 4GB DDR3 DIMMs
• Supports up to 8 GB on 64-bit systems (DIMMs run at DDR3-1066)
• Supports up to 4 GB on 32-bit PCs
  *32-bit PCs cannot address a full 4.0 GB of memory.