Re-installing an OS after an upgrade - A must? Tags: CPUs Performance Windows XP Last response: December 21, 2003 12:24 PM in CPUs Share mcbugzz December 21, 2003 5:47:08 AM I've upgraded from an Athlon XP 1500+ (Palomino) @ A7V266 to an Athlon XP 2500+ (Barton) @ GA-7N400 Pro2. I've ran several benchmarks (3dmark01, 03) and noticed one strange thing: in 3dmark01 I've LOST performance in the Game Test 4 - Nature. Then I noticed that when 3dmark01 starts, the spash-screen shows the "Athlon" logo, NOT the "Athlon XP" as it used to do. Could it be that WinXP can't see such stuff as SSE or 3DNOW on the new CPU? Do I need to reinstall WinXP or maybe install SP1? Suggestions? McBugzz More about : installing upgrade silverpig December 21, 2003 6:06:50 AM You probably should re-install yes. Some day I'll be rich and famous for inventing a device that allows you to stab people in the face over the internet. neveroldmilk December 21, 2003 6:41:58 AM Nope!Just delete the devices which have been marked unable to work properly.Then everything will be better. Related resources Need Help Problems after re-installing os - Forum Do I need reinstall OS after replacing the Mobo and CPU? - Forum FAQ: Switching Storage Controllers w/o Reinstalling Windows - Forum upgrading puter.. must i install xp? - Forum Reinstalling OS then Cloning Files (acronis?) - Forum Can't find your answer ? Ask ! Get the answer mcbugzz December 21, 2003 7:29:09 AM Well, the problem is that I have no problems with devices - everything works properly. I just suspect that 3DMARK2001 is unable to see that I've got an Athlon XP and not just Athlon. McBugzz pitsi December 21, 2003 12:24:45 PM While there might be other solutions for solving this problem, formating and re-installing your OS is actually the easier solution of all, and most probably the solution with the best results. So format your HDD, install WinXP, the drivers that came with your motherboard, graphics card and other hardware, SP1 and all other critical updates and then the rest of your software. Can't find your answer ? Ask ! Publish Related resources: ForumUpgrade Mobo/CPU/RAM without reinstalling system from scratch?? ForumRestore OS after upgrade ForumTwo "expert" issues I must solve before upgading ForumRecovering data after OS re-install ForumI must say Windows ME is the BEST Winodws O/S ForumDo I need to reinstall everything after a windows 7 upgrade ? ForumBuilding a striped array w/o re-installing windows7 ForumCan I clone my current RAID0 OS Data to my new SSD or must clean inst? ForumReinstalling OS (Vista) on new hard drive ForumOS reinstall after Duron to Athlon XP upgrade ? ForumBest Cpu cooler for ~40 ForumUpgrade a 2.4 ghz to 3.0? ForumXP Home Vs XP Pro Upgrade Forumupgrade or not? ForumWill this upgrade matter? More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !