Guaranteed compatible upgrades for:

HP/Compaq Pavilion a500 Series Desktop a574n

System Specifications
Maximum Memory:
  • 2GB
  • 2 Sockets
Standard Memory:
  • 128MB (Removable) or
  • 256MB (Removable) or
  • 512MB (Removable) or
  • 1GB (Removable)
  • Intel Pentium 4 3.4 GHz
Bus Architecture:
  • PCI; USB
Mfr's System P/N's:
  • PC164A; PC164AR
Upgrade Path:
  • Virtually any configuration up to 2GB can be reached using any combination of 256, 512MB, and 1GB modules.
  • This system is configurable and may ship with either DDR333 (KTC-D320/xx) or DDR400 (KTH-D530/xx).
  • This memory can be mixed, however when mixed the speed with default to DDR333.