OWC 64GB (4×16GB) DDR4 2933MHz CL21 ECC Registered RDIMM 1.2V 288-pin server RAM
- 64GB (4 x 16GB)
- 288-Pin DDR4 ECC RD…
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OWC
16 GB DDR5-4800 ECC registered RDIMM for PowerEdge R760xa, R860 and R960 servers
Capacity 16GB
This 16GB DDR5 4800 CL40 registered DIMM is built for Dell PowerEdge R760xa, R860 and R960 servers. It delivers 16GB of ECC registered memory at 1.1V in a 288-pin form factor. The module is not compatible with standard desktop computers or unbuffered memory configurations. It replaces Dell part AC239377 for direct server upgrades.
The module operates at 1.1V without a heat spreader, drawing minimal power during normal server workloads. As a passive component it produces no audible noise and relies on the server chassis airflow for cooling. JEDEC and RoHS compliance ensures stable operation within the qualified thermal envelope of the supported PowerEdge platforms.
The single 1Rx8 rank DIMM plugs into any available 288-pin DDR5 slot on the R760xa, R860 or R960 motherboard. It cannot be mixed with unbuffered or load-reduced ECC modules, so all populated slots must use registered ECC. The upgrade adds 16GB capacity per module and frees remaining slots for further expansion within the server's memory architecture.
| Brand | OWC |
|---|---|
| Part Number | 4R8D51R816GB |
| Capacity | 16GB |
| Type | 288-Pin DDR5 ECC RDIMM |
| Speed | DDR5 4800 (PC5 38400) |
| CAS Latency | CL40 |
| Voltage | 1.1V |
| ECC | Yes |
| Buffered/Registered | Registered |
| Rank | 1Rx8 |
| Heat Spreader | No |
| Compatible System | PowerEdge R760xa PowerEdge R860 PowerEdge R960 |
Selle mudeli teised versioonid
Sama seeria, erinev mälumaht, jahutus või taktsagedus — võrrelge enne otsustamist.
Power off the server, open the chassis, align the module key with the slot notch, press firmly until both ejector tabs click, then verify the system sees 16GB at 4800 MT/s in BIOS; the step often missed is confirming the memory mode matches registered ECC requirements.
No routine maintenance is required; if a correctable error count rises above the platform threshold the module should be replaced, otherwise it is rated for the server's full operational lifespan.
The memory controller's thermal throttle point is reached before the module's own temperature limit, so sustained throughput is capped by the server's cooling capacity rather than the DRAM.
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