To enable support > 3.25 GB RAM in Windows XP SP3, patched kernel is needed.

Three sets of patches are on Internet.

Gamersky-WindowsXP_64G_RAM

It contains:

  • hal64g.dll
  • ntkl64g.exe
boot.ini
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP 64G" /kernel=ntkl64g.exe /hal=hal64g.dll /fastdetect /PAE /noexecute=optin 

Windows_XP_SP3_Remove_PAE_Limit_v1.zip

Windows_XP_128GB_double_pae_addon_final_byDibya.7z