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Green circuit board with black memory chips, gold edge connector, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3 1600MHz CL11 2Rx8 Pro 6305 memory upgrade

SKU CH-HK0H-J2QXW

4GB DDR3 1600MHz CL11 DIMM upgrade for HP Compaq Pro 6305 SFF desktops

  • Total capacity4 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.5 V
  • 4GB DDR3 module expands Pro 6305 capacity
  • 1600MHz PC3-12800 speed matches system specification
  • CL11 11-11-11 timing delivers responsive operation
  • 2Rx8 unbuffered non-ECC design fits 240-pin DIMM slots
  • CMS lifetime warranty backs guaranteed compatibility

System-specific DDR3 upgrade

This 4 GB DDR3 module is built for the HP Compaq Pro 6305 small-form-factor business PC. It runs at 1600 MHz with CL11 timings and 1.5 V unbuffered non-ECC operation. The single stick adds 4 GB through a 240-pin DIMM slot.

Suitable for Pro 6305 owners

The kit suits anyone expanding a compatible Pro 6305 system up to the 32 GB four-socket limit. Buyers needing ECC error correction, registered modules, or speeds above 1600 MHz should look at something else. The memory will run at 1333 MHz because of the platform chipset.

Capacity and headroom

Four sockets allow a maximum of 32 GB when all slots are filled with similar modules. A single 4 GB stick handles everyday office workloads and light multitasking. Systems with more than 3 GB require a 64-bit operating system to address the full amount.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 97% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $2.50 per GB
Cheaper than about 92% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126412800DIMMHDR
Total capacity4 GB
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1600 (PC3 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
Memory timings11-11-11
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsHp Compaq Pro 6305 Small Form Factor Business Pc
In the box
Included items1 Memory RAM Stick

Questions about this item

Does my HP Compaq Pro 6305 Small Form Factor need a free 240-pin DIMM slot to install this 4 GB DDR3 module?

Yes, the module uses the standard 240-pin DDR3 DIMM form factor and occupies one memory socket; the Pro 6305 SFF has four sockets supporting up to 32 GB total.

If I keep the original 1333 MHz memory in the other slots, will this 1600 MHz stick still work?

The system chipset limits all memory to 1333 MHz, so the faster module will simply run at that lower speed alongside existing sticks without issues.

How can I confirm the new stick is recognised at the correct 4 GB capacity after installation?

Enter the BIOS or open Task Manager in a 64-bit Windows session; both will show the additional 4 GB, provided the OS is 64-bit to address memory above 4 GB.

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