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  1. CL9 (2)
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RamCity guarantees 100% that all modules below are compatible with the HP/Compaq Business Desktop 505B Microtower

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RamCity 2GB CL9 240-pin DIMM
Part #. CJI • DDR3-1333 / PC3-10600 • CL9 • 1.5V • 16-chip 128Mx8 •  more info
Buy new: $96.99 $75.99

11 in Stock Free Shipping Guaranteed Compatible

Kingston 2GB 240-pin DIMM
Part #. KTH9600B/2G • DDR3-1333 / PC3-10600 •  more info
Buy new: $142.99 $111.99

14 in Stock Free Shipping Guaranteed Compatible

Kingston 1GB 240-pin DIMM
Part #. KTH9600B/1G • DDR3-1333 / PC3-10600 •  more info
Buy new: $75.99 $58.99

Ships in 7 Days Free Shipping Guaranteed Compatible

RamCity 1GB CL9 240-pin DIMM
Part #. CJP • DDR3-1333 / PC3-10600 • CL9 • 1.5V • 8-chip 128Mx8 •  more info
Buy new: $78.99 $61.99

Ships in 7 Days Free Shipping Guaranteed Compatible

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We guarantee your memory upgrade will be 100% compatible, or return it within 1 Whole Year for a full refund.
Need some help installing your upgrade? See our guides and videos.
System Specifications
Comments:
  • MODULES MAY BE INSTALLED ONE AT A TIME; however, they must be added in like pairs to take advantage of dual-channel support.
  • If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation).
  • Maximum configurations require a 64-bit operating system.
  • Per HP documentation, system supports DDR3-1333 PC3-10600 memory which may run at slower speed depending on system configuration.
Standard Memory:
  • 1GB (Removable) or
  • 2GB (Removable) or
  • 3GB (Removable)
Maximum Memory:
  • 4GB
Expansion:
  • 2 Sockets
CPU/Chipset:
  • AMD Athlon II X2 Dual-Core (AM3) Nvidia nForce 430
  • AMD Athlon II X3 Triple-Core (AM3) Nvidia nForce 430
Bus Architecture:
  • PCI; PCI Express; SSD - SATA 2.5-inch; USB
Mfr's System P/N's:
  • VN826EA; VN832EA; VN842EA
Upgrade Path:
  • Virtually any configuration up to 4GB can be reached using any combination of 1 and 2GB modules.