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Two green DDR3 DIMM sticks, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions CM2566412800DIMMSR 4GB (2x2GB) DDR3 1600MHz memory upgrade

SKU CH-JQB4-5GS8V

A 4 GB DDR3 kit of two 2 GB DIMMs running at 1600 MHz CL11 for HP Pavilion p7-1227c, p7-1233w, p7-1235 and p7-1240

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.5 V
  • 4GB dual-channel kit boosts multitasking with two matched 2GB modules
  • 1600MHz DDR3 speed delivers responsive performance for everyday computing
  • CL11 latency ensures quick data access for smoother operation
  • 5V operation runs efficiently on standard desktop power
  • Guaranteed compatible with HP Pavilion p7-1227c, p7-1233w, p7-1235, p7-1240

Targeted HP Pavilion Upgrade

This 4 GB kit contains two 2 GB DDR3 DIMMs rated at 1600 MHz with CL11 timing and 1.5 V operation. The 240-pin unbuffered non-ECC modules are built with major-brand chips and carry a limited lifetime warranty from the manufacturer.

Ideal for listed Pavilion models.

The kit is validated for HP Pavilion p7-1227c, p7-1233w, p7-1235 and p7-1240 desktops. Builders working on different motherboards or requiring ECC, registered memory or speeds above 1600 MHz should choose a different part.

Two-slot 4 GB limit decides fit

Each system accepts a maximum of 8 GB across four slots, so this 4 GB kit fills half the capacity. If all four slots are already occupied or the board cannot recognise more than 4 GB total, the modules will not add usable memory.

How it compares

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

Price $11.99
Cheaper than about 96% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB (2 × 2 GB)
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $3.00 per GB
Cheaper than about 90% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM2566412800DIMMSR
Total capacity4 GB (2 × 2 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsHP Pavilion p7-1227c, p7-1233w, p7-1235, p7-1240
In the box
Included items2 Memory RAM Sticks

Questions about this item

Should I pick the 4 GB kit or look for a single 4 GB module for my HP Pavilion?

The kit supplies 4 GB total as two 2 GB sticks, filling two slots and leaving the other two free for a later upgrade to the 8 GB maximum.

What does the PC3-12800 label mean for everyday speed on my p7-1235?

It confirms a 1600 MHz data rate with CL11 timing at 1.5 V, the exact specification the Pavilion chipset expects for stable operation.

Will these 240-pin DDR3 DIMMs work in the four slots of my p7-1240?

Yes, they are unbuffered non-ECC 240-pin DDR3 modules validated for the HP Pavilion p7-1227c, p7-1233w, p7-1235 and p7-1240 platforms.

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