Hey there. This a quick note, mainly geared towards helping other people who might be Googling for the same info I was just a few nights ago. I was looking in vain for an answer to this question:

Q: If I install 8GB of RAM in a Gateway GM5664 desktop will the computer’s BIOS recognize it?

A: Yes

This computer came with Windows Vista 32bit, 4 DIMM slots, and 3GB of RAM as follows:

(2) 1 GB chips

(2) 512 MB chips

If you do a lookup on this by model # at just about every site that sells memory it will tell you there is a max of 4GB total, and a max of 1GB per slot. I believe this is because with Windows Vista 32bit installed by default, if you were to install 4GB, Windows will only see 3.5GB. In order to keep people from complaining after popping in more than 4GB and not seeing it in Windows, they must have listed the max memory as 4GB. However, if you upgrade to Windows 7 64bit and pop in (4) 2GB DIMMs it will recognize it and boots fine.

8Gb is probably overkill, though my computer is running faster than it was.

Here’s the exact RAM that I have installed:

240-pinDIMMkit_2240-pinDIMMkit_2

http://www.crucial.com/store/mpartspecs.aspx?mtbpoid=BF123C48A5CA7304