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Computer Memory Solutions
Computer Memory Solutions CM256645300DIMMDR 4GB (2x2GB) DDR2 667MHz PC2-5300 CL5 240-pin DIMM
A 4 GB DDR2 kit with two 2 GB unbuffered DIMMs rated at 667 MHz CL5 for Dell OptiPlex GX620 desktops
- Capacity4GB (2 x 2GB)
- Type240-Pin DDR2 SDRAM
- SpeedDDR2 667 (PC2 5300)
- CAS LatencyCL5
- Timing5-5-5
- Voltage1.8V
- 4GB kit upgrades Dell OptiPlex GX620 systems
- DDR2 667MHz speed matches PC2-5300 specification
- CL5 latency with 5-5-5 timing for stable operation
- 8V unbuffered non-ECC modules install in 240-pin slots
- Two 2GB sticks populate dual-channel configuration
Genuine CMS 4GB DDR2 Kit
Computer Memory Solutions supplies this 4GB kit as two 2GB modules built to the PC2-5300 standard at 667MHz with CL5 timing. The sticks are 240-pin unbuffered DIMMs running at 1.8V and use major-brand chips without heat spreaders. They are validated for the Dell Optiplex GX620 in DT, MT and SFF chassis.
Suitable for GX620 upgrades only
The kit targets owners of a Dell Optiplex GX620 desktop who need a matched pair to populate two of the four available slots. It is not for systems that require ECC or registered memory. It is also not for machines that cannot accept 240-pin DDR2 modules.
PC2-5300 667MHz CL5 specification
The decisive figure is the DDR2 667MHz PC2-5300 rating with 5-5-5 timing at 1.8V. If the motherboard calls for a different speed, voltage or pin count these modules will not seat or will not post.
Highlights
- 4GB kit upgrades Dell OptiPlex GX620 systems
- DDR2 667MHz speed matches PC2-5300 specification
- CL5 latency with 5-5-5 timing for stable operation
- 8V unbuffered non-ECC modules install in 240-pin slots
- Two 2GB sticks populate dual-channel configuration
Specifications
| Brand | Computer Memory Solutions |
|---|---|
| Model | CM256645300DIMMDR |
| Capacity | 4GB (2 x 2GB) |
| Type | 240-Pin DDR2 SDRAM |
| Speed | DDR2 667 (PC2 5300) |
| CAS Latency | CL5 |
| Timing | 5-5-5 |
| Voltage | 1.8V |
| ECC | No |
| Buffered/Registered | Unbuffered |
| Rank | 2Rx8 |
| Chipset | Major Brand Chipset |
| Heat Spreader | No |
| Compatible System | Dell Optiplex Gx620 Dt / Mt / Sff |
| Package Content | 2 Memory RAM Sticks |
Questions about this item
Will the 240-pin DDR2 DIMMs fit the four memory sockets on my OptiPlex GX620 DT, MT or SFF?
Yes, the kit is built for that exact system and its four DDR2 slots; the 240-pin form factor matches the motherboard sockets.
Can I keep my existing PC2-5300 modules and add this 2 x 2 GB kit without speed conflicts?
All sticks will run at 667 MHz CL5; mixing identical-speed DDR2 modules is supported by the GX620 memory controller.
How can I confirm the new memory is recognised after installation?
Power on the GX620, enter the BIOS setup and check the memory summary — it should list 4 GB total across the populated slots.
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