Upgrade Dell Dimension 8400 Computer Memory

 Memory Specifications
Standard512 MB = 256 MB (removable) + 256 MB (removable)
Maximum4.0 GB
Slots4 sockets (2 banks of 2)
CommentsPC2-3200/4200 DDR2 SDRAM DIMMs. Supports Dual Channel DDR. DDR2 memory modules should be installed in pairs of matched memory size, speed, and technology. If the DDR2 memory modules are not installed in matched pairs, the computer will continue to operate, but with a slight reduction in performance. Check Dell Support site.
CPU TypeIntel Pentium 4
Model Comments800MHz FSB, Intel 925X Chipset

Your Dell Dimension 8400 can support up to 4.0 GB of memory. For optimal system performance install the maximum amount of memory in each memory socket, this system comes with standard amount of   512 MB = 256 MB (removable) + 256 MB (removable) RAM. One or more of the sockets in the system might be already filled with memory. Whenever you upgrade, you can either add memory to one of the open sockets and/or remove memory from a filled socket and replace it with a higher capacity memory module. Select your Memory Upgrade for Dell Dimension 8400.