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Server Memory
Key takeaways
- Memory Clearance lists 50,001 Server Memory products from 94 manufacturers, led by Dell, Hynix, Samsung and HP.
- 9,964 carry an online price, from $30 to $44,562.
- The other 40,037 are quoted per part, which is how hard to source and end of life items are handled.
- 12,949 listings state a condition (8,946 refurbished and 4,003 new); the other 37,052 do not record one.
- Every listing names the manufacturer part number, so a part can be matched exactly before ordering.
- Quotes are answered weekdays 8:00 am to 5:00 pm PST on (800) 733-1169.
Server Memory questions
Which Server Memory brands does Memory Clearance carry?
The most listed brands in Server Memory are Dell, Hynix, Samsung, HP, Micron and Kingston. Every listing names its manufacturer and part number, so you can search by either.
Are these Server Memory products new or refurbished?
Both. Of the 50,001 listings, 12,949 state a condition: 8,946 are refurbished and 4,003 are new. The other 37,052 do not record one, so ask for it when you request a quote. The condition shown on a listing is the condition you receive.
How do I get a price on a Server Memory part?
9,964 Server Memory listings show a price you can order at. Items marked "Call for Price" have a Request for Quote button; send the part number and quantity and the sales team replies weekdays between 8:00 am and 5:00 pm PST.
How to choose server memory
Server memory is error-correcting (ECC) DIMM memory built for servers and workstations: Registered DIMMs (RDIMMs), Load-Reduced DIMMs (LRDIMMs), and unbuffered ECC modules, across the DDR3, DDR4, and DDR5 generations. Choosing the right module comes down to four checks: the DDR generation your platform accepts, the module type already installed (RDIMM, LRDIMM, or UDIMM cannot be mixed), the capacity and rank your slots support, and the speed grade. Memory Clearance supplies server memory in new and refurbished condition (what each grade means), with Samsung, Hynix, and Micron OEM modules behind Dell, HPE, Lenovo, and Cisco part numbers.
Start with the DDR generation. DDR3, DDR4, and DDR5 DIMMs are keyed differently and are physically incompatible: a DDR4 server cannot take DDR5 regardless of the spec sheet. Your platform documentation, or an installed part number read from iDRAC (Dell) or iLO (HPE), settles this in seconds. The catalog carries DDR4 and DDR5 modules, plus DDR3 parts for platforms past end of life.
Match the module type second. RDIMMs are the default in Dell PowerEdge and HPE ProLiant systems. LRDIMMs buffer the data lines as well as command and address signals, which is what enables 64GB-and-larger modules at full slot population. Unbuffered modules are workstation-class, and most two-socket servers will not accept them. The three types never coexist in one system: add what is already installed, or replace the full bank.
Then capacity, rank, and speed. Rank (single, dual, quad, octal, written 1R/2R/4R/8R in codes like 2Rx4) is one of the factors that sets how many modules a memory channel supports, so match rank when adding to an existing bank. Speed downclocks to the slowest module in the system: a faster module works but buys nothing. CAS latency (CL22, CL42) follows the same rule. Blade servers (Dell M-series, HPE BL-series) often require VLP (very low profile) modules; standard-height DIMMs physically do not fit.
Finally, order by part number when you have one. A Dell or HPE branded module and its Samsung, Hynix, or Micron OEM equivalent are the same module under different labels; quote any number you have and include your server model. Quotes are answered weekdays 8:00 am to 5:00 pm PST.
Server memory buying questions
Can I mix RDIMM and LRDIMM in one server?
No. Registered and load-reduced modules use different buffering and a system will not run both. Install the type already present, or replace the full bank.
Is refurbished server memory reliable?
A memory module has no moving parts, and its specification is fixed by the part number, not its age. The condition shown on a listing is the condition you receive; warranty terms are on the warranty page. See condition grades.
What does PC4-25600 mean?
PC4 marks the DDR4 generation and 25600 is the peak bandwidth in MB/s per module, which corresponds to DDR4-3200. A trailing R means Registered. The same decode works across generations: PC3-10600R is DDR3-1333 registered, PC5-38400 is DDR5-4800. Full decoder: how to read memory part codes.
How do I find what memory my server takes?
Read an installed part number from iDRAC or iLO and search it here, or browse by platform generation above. If the exact number is not listed, request a quote with the number and your server model; equivalent part numbers usually exist.
Buying server memory in volume
Quantity, not price, is usually the constraint on a large secondary-market order. In Server Memory we hold 1,393 distinct parts with 25 or more units available, 286,444 units in total. Depth varies by part number, so a volume request is answered against the exact number you need.
Send the part number, the quantity, the condition you will accept and the server model. A platform's population rules decide how many modules it can take, so settle those before you size the order. Send a volume request through the contact form, putting the part numbers and quantities in the message, or read how to get quantity pricing. Quotes are answered weekdays 8:00 am to 5:00 pm PST.
Browse server memory by specification
Each collection below is this category narrowed to one specification, on its own page with its own listing count. Start there when you already know the generation, interface, capacity or family you need.
- DDR5 Server Memory
- DDR4 Server Memory
- DDR4 Registered Memory (RDIMM and LRDIMM)
- DDR4 LRDIMM Server Memory
- DDR4 UDIMM ECC Unbuffered Memory
- DDR3 Server Memory
- DDR3 LRDIMM Server Memory
- DDR3 UDIMM ECC Unbuffered Memory
- 32GB DDR5 Server Memory
- 64GB DDR5 Server Memory
- 96GB DDR5 Server Memory
- 128GB DDR5 Server Memory
- 256GB DDR5 Server Memory
- DDR5-4800 Server Memory
- DDR5-5600 Server Memory
- 16GB DDR4-3200 Server Memory
- 32GB DDR4-3200 Server Memory
- 64GB DDR4 Server Memory
- 128GB DDR4 Server Memory
- DDR4-3200 Server Memory
- DDR4-2933 Server Memory
- DDR4-2666 Server Memory
- VLP Very Low Profile Server Memory
- Memory for Dell PowerEdge 14G Servers
- Memory for Dell PowerEdge 15G Servers
- Memory for HPE ProLiant Gen10 Servers
- Memory for HPE ProLiant Gen11 Servers
Every collection by specification