contact Kingston with this and see how they reply to that ??
then post it here so we can all see how they put it to you and know better next time ?? you got old chipset and it may just be a limitation of it [''that the motherboard is not equipped to recognize''] and company's moved on from its support main stream products ??
time moves on and old things just get left in the dust and fade off in to the sun set
The density of a memory module is basically determined by the DRAM chips that make up the memory module. For example a 1GB DDR2 module like the one in your system can be made up of 8x 1Gb (gigabit) chips or 16x 512Mb (megabit) chips. The fewer chips on the module, the higher the density. This is because the individual DRAM chips have a higher density to make up the full megabyte value of the actual memory module.
Most systems will accept either type without any issues and so we manufacture and sell both types of memory. If a particular system's chipset has issues identifying a certain type then we usually have this information built into our Advisor Tools to ensure customers get the correct upgrade. Your system is one of those affected by such problems and so we do only recommend lower density 16 chip versions of the 1GB modules. It is possible that you have not used the Advisor Tool and just bought the part from a generic list and this is why you did not get the specific revision you needed.
We can of course exchange it for you, please follow the link below to view the return options:
http://www.crucial.com/uk/support/returns.aspx
'' am sorry but that MB is based on the Intel P43 Chipset and as the information on this chipset comes up with an error on Intel's site, I would check with them to be sure what the Chipset will support, but I would assume it will be the same spec as the P35-X38 Chipset which can only support memory made with 128M X 8 Memory IC's and we no longer manufacturer memory made with these IC's most of our production has moved to 256M x 8 or 512M X 8 Memory IC's. Sorry.
http://forum.corsair.com/forums/showthread.php?t=86998&highlight=ASUS+P5P43TD
looks like if you were to find something that works today you better grab it if it better then what you all ready got