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Guaranteed compatible upgrades for:

HP/Compaq Pavilion a1000 Series Desktop a1545l

WD Black 4TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive

WD Black 4TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive
System Specifications
Maximum Memory:
  • 2GB
Expansion:
  • 2 Sockets
Standard Memory:
  • 256MB (Removable) or
  • 512MB (Removable) or
  • 1GB (Removable)
CPU/Chipset:
  • Intel Pentium D 2.66 GHz ATi RADEON XPRESS 200 (RC410)
Upgrade Path:
  • Virtually any configuration up to 2GB can be reached using any combination of 512MB and 1GB modules.
Comments:
  • MODULES MAY BE INSTALLED ONE AT A TIME; however, they must be added in like pairs to take advantage of Dual Channel Mode.
  • This system supports both DDR2-400 (KTH-XW4200/xx) and DDR2-533 (KTH-XW4200AN/xx) memory.
  • When mixed, the memory will default to DDR2-400.