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RamCity guarantees 100% that all modules below are compatible with the HP/Compaq Business Desktop 505B Microtower

Part #. CJI • DDR3-1333 / PC3-10600 • CL9 • 1.5V • 16-chip 128Mx8 • more info

Buy new: $96.99 $75.99

Part #. KTH9600B/2G • DDR3-1333 / PC3-10600 • more info

Buy new: $142.99 $111.99

Part #. KTH9600B/1G • DDR3-1333 / PC3-10600 • more info

Buy new: $75.99 $58.99

Part #. CJP • DDR3-1333 / PC3-10600 • CL9 • 1.5V • 8-chip 128Mx8 • more info

Buy new: $78.99 $61.99

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:

Maximum Memory:

Expansion:

CPU/Chipset:

Bus Architecture:

Mfr's System P/N's:

Upgrade Path:

Virtually any configuration up to 4GB can be reached using any combination of 1 and 2GB modules.