I recently received and old Systemax Tiger computer. It has Windows XP on it and has 256 MB of DDR SDRAM on it. Now, i also have an old Dell computer that has 512 MB of SDRAM in it. Will my Systemax computer work if i put both kinds of RAM in it?

Paulji786,
Below are the specs you requested on these 2 systems.
Optiplex GX280
Memory
Type
400 & 533 MHz DDR2 SDRAM
400 & 533 MHzMemory connectors
small form-factor computer: 2small desktop computer: 4desktop computer: 4small mini-tower computer: 4mini-tower computer: 4
Memory capacities
128 MB, 256 MB, 512 MB, or 1 GB non-ECC
Minimum memory
dual-channel: 256 MBsingle-channel: 128 MB
Maximum memory
small form-factor computer: 2 GBsmall desktop computer: 4 GBdesktop computer: 4 GBsmall mini-tower computer: 4 GBmini-tower computer: 4 GB
BIOS address
F0000h
Dimension 5000
Type 400- and 533-MHz DDR2 unbuffered SDRAM
Memory connectors four
Memory capacities 256 MB, 512 MB, or 1 GB non-ECC
Minimum memory 256 MB
Maximum memory 4 GB
System clock 800-MHz data rate
Memory speed

Thank You,
Dell-Jesse L
Dell Social Media and Communities

Install and run this http://www.piriform.com/speccy it will tell you the entire hardware configuration.

It should this is what dell has for the pc listed on the website
http://accessories.us.dell.com/sna/productdetail.aspx?c=us&l=en&sku=A0740429

Here are the specifications of the Gateway 838GM: You will have to replace the existing memory with thesesettings only: The machine comes with: 512 MB = 256 MB (removable) + 256 MB PC3200DDR SDRAM DIMMs. Supports Dual Channel DDR Nowyou can only upgrade to 4.0 Gig total. I would recommend going to this link and order the correct memory foryour computer I use them quite a bit. http://www.memorystock.com/memory/Gateway838GM.html Rob

Hi this model sopport 2Gig Memory Ram.


RAM Technology DDR SDRAM Installed RAM 512 MB Max Supported RAM 2 GB Number of Memory Slots 2 x DIMMs Supported RAM Speeds 400 MHz • 333 MHz Installed Cache Memory 256 KB
RAM Technology DDR SDRAM Installed RAM 512 MB Max Supported RAM 2 GB Number of Memory Slots 2 x DIMMs Supported RAM Speeds 400 MHz • 333 MHz Installed Cache Memory 256 KB
RAM Technology DDR SDRAM Installed RAM 512 MB Max Supported RAM 2 GB Number of Memory Slots 2 x DIMMs Supported RAM Speeds 400 MHz • 333 MHz Installed Cache Memory 256 KB
RAM Technology DDR SDRAM
Installed RAM 512 MB
Max Supported RAM 2 GB
Number of Memory Slots 2 x DIMMs
Supported RAM Speeds 400 MHz • 333 MHz
Installed Cache Memory 256 KB

Please check in to your Bios system maybe share memory Video or capacity is setting

In the bios there is an option to install OS, make sure this is flaged as off, when you reboot you will have access to the full amount of onboard ram.

i think you need a same brand of 256 for it to work? and when you buy something for your computer make sure that the one you both is the same brand or code with your 128 for example you have 128 ddr2 sdram so you can only upgrade it with 256 ddr sdran or 512mb,1gb,2gb ddr sdram.

From the Dell specifications page for Dimension 4600:
Memory
Architecture
Dual Channel DDR SDRAM
Memory connectors
Four
Memory capacities
128-, 256-, 512-MB or 1-GB
Minimum memory
128-MB DDR SDRAM
NOTE: Between 32 and 64 MB of system memory may be allocated to support graphics, depending on system memory size and other factors.
Maximum memory
4 GB
Memory type
PC2700 (333-MHz) or PC3200 (400-MHz) DDR SDRAM
(non-ECC)

http://www.fujitsu-siemens.ru/Resources/123/2080773523.pdf

Here's a link to the Data Sheet with the specifications to that Laptop in Adobe Reader format.

Looks like your Laptop came with either 256 or 512 MB of DDR SDRAM and it is upgradable to 2 GB of DDR SDRAM.

You can check to see exactly how much RAM your computer came with by going to Control Panel, double-click System and it should tell you how much RAM you currently have in the System Properties box.

The motherboard has 2 slots for RAM, you you could add a second 256 MB or a second 512 MB stick of RAM. Or if you wanted to upgrade to the 2GB of maximum RAM this computer handles, then you can take out the RAM chip(s) that is installed and install two 1G DDR SDRAM.

The motherboard you mentioned supports DDR1 RAM.

For windows xp and general application 512 MB is enough.
But if you use memory intensive applications like image/video editing then you can opt for 1-2 GB RAM.