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Three green DDR3 DIMM sticks, 240-pin, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions 12GB (3x4GB) DDR3 1333MHz CL9 1.5V Non-ECC DIMM for Dell Optiplex 980

SKU CH-JSWE-JM5DF

A 12 GB DDR3 kit with three 4 GB DIMMs rated at 1333 MHz CL9 for Dell Optiplex 980 upgrades

  • Total capacity12 GB (3 × 4 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL9
  • Memory timings9-9-9
  • Rated voltage1.5 V
  • 12GB kit upgrades Dell Optiplex 980 to 12GB
  • 1333MHz DDR3 speed matches system specification
  • CL9 latency supports stable operation
  • 5V unbuffered DIMMs fit standard slots
  • Three 4GB modules populate three of four slots

Dell Optiplex 980 memory kit

This 12 GB kit contains three 4 GB DDR3 DIMMs rated at 1333 MHz with CL9 timings and 1.5 V operation. The modules are unbuffered, non-ECC and built with a 2Rx8 rank configuration for the Optiplex 980 desktop.

Straightforward DIMM installation

Installation is a standard 240-pin DIMM insertion into the motherboard slots. The main issue is exceeding the four-slot limit or the 16 GB maximum capacity supported by the system, which prevents the extra memory from being recognised.

Verify slot count and capacity ceiling

Before ordering, confirm the Optiplex 980 has free DIMM slots and that the current installation plus this 12 GB kit does not surpass the 16 GB total memory limit. The system uses four slots, so population depends on existing modules.

How it compares

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

Price $53.99
Cheaper than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 12 GB (3 × 4 GB)
Lower than about 75% of the 20,941 comparable items (median 32 GB).
Price per GB $4.50 per GB
Cheaper than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126410600DIMM
Total capacity12 GB (3 × 4 GB)
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL9
Memory timings9-9-9
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsDell Optiplex 980
In the box
Included items3 Memory RAM Sticks

Questions about this item

How do I confirm the 12GB kit is running at 1333MHz CL9 after installing it in my Optiplex 980?

Enter the system BIOS or use a tool like CPU-Z to verify the memory frequency reads 1333MHz and the timings show 9-9-9 at 1.5V.

The box says 3 memory RAM sticks — are there any extra cables, screws or a heat spreader I need to buy separately?

No extra parts are required; the package contains only the three 240-pin DDR3 DIMMs and they install directly into the motherboard slots.

My Optiplex 980 supports up to 16GB across four slots — should I choose this 12GB (3x4GB) kit or a different capacity?

This 12GB kit fills three of the four slots with matched 4GB modules, leaving one slot open for a future upgrade while staying within the 16GB maximum.

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