OWC 4GB DDR3 1600 PC3-12800 CL11 2Rx8 240-pin 1.5V ECC Unbuffered UDIMM Memory Upgrade
- 4GB
- 240-Pin DDR3 ECC UD…
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OWC
A 4 GB DDR3L SODIMM running at 1600 MHz with CL11 latency and 1.35 V operation, validated for the Dell XPS One 2720
This 4GB DDR3L 1600 CL11 module is built for the Dell XPS One 2720 all-in-one desktop. It runs at 1.35V with a 204-pin SODIMM form factor and JEDEC-standard timings. The single-rank 1Rx8 design installs without tools in the accessible memory slot.
Buyers who want more than 4GB of total memory should look elsewhere. Systems requiring ECC error correction or registered modules are not supported. This module does not fit standard laptops or desktops using different pin counts or voltages.
The module operates at PC3L-12800 speed with CAS latency 11 at 1.35 volts. Matching these exact parameters ensures the XPS One 2720 recognises the upgrade and runs stably. Any deviation in voltage, speed or pin layout will prevent the system from booting.
| Brand | OWC |
|---|---|
| Part Number | 1S6T31R804GB |
| Capacity | 4GB |
| Type | 204-Pin DDR3L Non-ECC SODIMM |
| Speed | DDR3L 1600 (PC3L 12800) |
| CAS Latency | CL11 |
| Voltage | 1.35V |
| ECC | No |
| Buffered/Registered | Unbuffered |
| Rank | 1Rx8 |
| Heat Spreader | No |
| Compatible System | Dell XPS One 2720 |
Other versions of this model
Same family, different memory, cooler or clock — compare before you commit.
Power off and unplug the all-in-one, remove the rear access panel, align the notch on the module with the slot key, press firmly until both side clips click, then replace the panel before powering on; the step most often missed is fully seating the module so both clips engage.
No scheduled maintenance is required; if the system later needs more capacity, replace the module with a higher-density DDR3L SODIMM of the same voltage and speed.
The 4GB capacity is the first bottleneck; once the operating system exhausts physical RAM it swaps to storage, which slows responsiveness well before thermal or voltage limits are reached.
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