http://www.amd.com/us-en/assets/content_type/utilities/amdcpusetup.exe
AMD公司出的针对双核的优化补丁下载地址：http://www.amd.com/us-en/assets/content_type/utilities/Setup.exe
微软的xp双核补丁.microsoft://www.com/downloads/details.aspx?displaylang=zh-cn&FamilyID=C2AB5A48-8240-4934-BBD8-34FB8A0FCE3B" target="_blank">http://www.microsoft.com/downloads/details.aspx如果是AMD的双核cpu的话