Barton 2500+ shows up as AMD Athlon-A 1100 mhz??? on A7N8X-X

I do not know whats up with this, but my processor shows up as AMD Athlon XP-A 1100 mhz on post and in bios its set to 200 x 5.5. It was not always like this, and I am not sure what led it to be tweaked down, and also to be represented as a totally different processor.
What should I do so that system recognizes it as a Barton 2500+?
My system is Windows XP.

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Clarification Request
Sorry. Are you wanting XP to ID the CPU?

XP only ID's certain CPUs. It's a pretty short list but I think this was discussed a while back. There is no technical reason to fix XP's CPU identifications. Only cosmetic ones.

Besides the cosmetic issue, is there a real issue to fix?

Does CPUID (see google) get it right?

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Barton 2500+ shows up as AMD Athlon-A 1100 mhz??? on A7N8X-X

Thanks for your reply.
The reason why I asked is because my computer run slowly (which is not so strange, since he is close to retirement:)) and my CPU was set to 1.1 Ghz. So, it was not only a cosmetic issue, since my computer was considerably slower (now less), and I did not find any viruses or malware present after scan.
Fortunately, a friend of mine advised me yesterday to change settings in BIOS, so I did just that and instead of 5.5x200 Mhz, I put 11x166 Mhz, which are original settings.
Of course, I installed CPU-Z and finally my CPU was recognized as Barton 2500+.
Still, my computer does not function as it used to and it did not came back to normal even after this CPR-CPU thing:))
Maybe the reason is because my memory frequency is set to 200 Mhz (motherboard supports memory of up to 400 Mhz , and I have installed 512 Mb of DDR SDRAM, PC3200, 400Mhz) and my CPU's FSB is 333 Mhz (bus speed is 166.5 Mhz).
Should I do something to change this and will it have any effect?

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