It is very weird that you don't even notice the difference, now Windows* XP does not have much requirements so you wont notice much of a difference as most likely your Intel(R) Pentium(R) III processor did work enough to use Windows* XP.
If you are having slow boot and perfromance issues running different softwares that have higher requirements that a Intel(R) Pentium(R) III processor and the programs do support newer processors ( If you are using a very old software that does not support newer processor then it may even run slower ) you can check some things.
You have the latest BIOS, but you updated it after you installed the operating system? If you did, a fresh install of the operating system can help.
The memory, is it recognized correctly in BIOS? Some memory modules are not recognized correctly in BIOS and you may be having an unstable system causing it to run slow even if you don't receive the Blue Screen Of Death.
Advanced Host Controller Interface (AHCI) will work fasten than on IDE mode, to use Advanced Host Controller Interface (AHCI) in Windows* XP you need to install the drivers during the operating system installation with the F6 method.
Make sure that if you reinstall the operating system, you install the chipset driver first, this is called the critical driver installation procedure.
Okz Listen I Just Install the Windows Xp and then check its Performance and it is slow
What i find let me tell u maybe u will now guide me properly
i am working in a Shop
so i have all accessories. i check its memoray through memtest and its working fine. 5 Time i install the windows After update the bios 3 time
what i find i change the Hard Disk westren Digital 1TB to Seagate 160Gb just for checking and its working Absolutly Fine...
Then i change and Put One more new Westren Digital 1TB hard disk and install the window and performance same slow
then i change the Hard disk again Westren Digital Hard 500GB and its working fine good performance
one thing which i see is this that on WD 1TB hard Disk is Written 64MB Cache and on 500 GB WD hard its 16MB cache.
I Dont know maybe this Cache Problem
i tried many time Installation through F6 methode always Dump error (Note: Through External Floppy drive) someone told me try with nlite i know how to use nlite. but my costomer is now angry :O
but i need solution proper i dont want that my next costomer will get this headich