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The Asus A8N5X Motherboard Manual says maximum 4 GB DDR memory. 1 GB per slot. Is there a way to increase that? Such as perhaps by upgrading the CPU or am I just hopefully dreaming?

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  • No; There is no way to increase that. It is a limit of the design of the hardware itself.
    – Ramhound
    May 27, 2016 at 14:22
  • Your only hope is that there might be a firmware upgrade to support it, but it is a faint hope: it's most likely a hardware limitation. Without more memory, your best bet to improve performance is to use an SSD as a swap disc, but it needs to be one with a very high specification for maximum writes.
    – AFH
    May 27, 2016 at 14:26
  • @AFH Firmware can only help so much. In this case its multiple parts of the hardware itself are the reason for this limit.
    – Ramhound
    May 27, 2016 at 15:36
  • @Ramhound - I fully accept that: I did say it was a slim chance. But without going into the hardware in great detail I could not eliminate it completely. I thought it worth checking before looking at more expensive options. Replacing a motherboard should not be taken lightly: apart from the board itself, a replacement with the same connectivity may well not support any of the existing memory and possibly not the current CPU either, not to mention the power supply's compatibility.
    – AFH
    May 27, 2016 at 16:26

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Your motherboard uses the nForce4 chipset which has a buildin memory controller limited to 4 GB (in 4x 1GB, 2x 2GB isn't going to work either).

So you are out of luck I'm afraid.

Besides: This is ancient hardware. Whatever upgrade you are going to throw at it, it won't make it much faster/better then it is now. And it is very questionable if any investment in this machine is going to be worth the money given its age.

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