HPE ProLiant SL270s Gen8 Memory
Genuine HPE DDR3 SmartMemory for the HPE ProLiant SL270s Gen8, new and refurbished. Each tray carries 16 DIMM slots — eight per processor, two channels of four — and the decision that shapes every order is the memory technology, because Registered, Unbuffered and Load Reduced are distinct technologies and cannot be mixed within one server.
SL270s Gen8 Memory Specifications
- Type: DDR3 HPE SmartMemory, Registered (RDIMM), Unbuffered with ECC (UDIMM) or Load Reduced (LRDIMM), in PC3L-10600, PC3-12800, PC3L-12800 and PC3-14900 grades
- Slots: 16 per tray, eight per installed processor; with only one processor fitted, half the slots are unavailable
- Maximum registered: 256GB, using sixteen 16GB dual-rank modules
- Maximum unbuffered: 128GB, using sixteen 8GB dual-rank modules
- Maximum load reduced: 512GB, using sixteen 32GB quad-rank modules
- Speed: set by the processor, not the module — E5-2600 parts cap memory at 1066, 1333 or 1600MHz by class, and E5-2600 v2 parts at 1333, 1600 or 1866MHz
- Protection: Advanced ECC multi-bit error protection
Registered, Unbuffered and Load Reduced cannot be mixed, and the ceilings are not the same. Registered reaches 256GB per tray, Unbuffered stops at 128GB, and Load Reduced is the only route to 512GB. Converting a tray from one technology to another means replacing every module in it, so check what is fitted before ordering a single kit.
Which Memory Technology Should You Fit?
| Registered | Unbuffered | Load Reduced | |
|---|---|---|---|
| Maximum per tray | 256GB | 128GB | 512GB |
| Kit sizes listed | 4GB, 8GB, 16GB | 2GB, 4GB, 8GB | 32GB |
| Largest module | 16GB dual rank | 8GB dual rank | 32GB quad rank |
| Mixing with the others | Not supported | Not supported | Not supported |
Registered is the working answer for most trays and the only technology listed here in three capacities. Load Reduced is the one route past 256GB, but both 32GB kits are quad-rank parts and the PC3-14900 version is documented only for E5-2600 v2 processors, so capacity at that level is a processor decision as much as a memory one. Whichever technology is fitted today is what an upgrade has to match, because converting a tray means replacing every module in it.
Choosing the Right SL270s Gen8 Memory
- Match the processor generation, not just the slot. This listing carries separate kits for E5-2600 and E5-2600 v2 processors, and the PC3-14900 (1866MHz) parts belong with v2 processors.
- The Intel Xeon E5-2620 does not support DIMMs at 1.35V. HPE documents changing 1.35V modules to run at 1.5V through RBSU, so low-voltage kits are usable on that processor but not at low voltage.
- Mixed voltages run high. RDIMMs rated at 1.35V and 1.5V may be mixed in any order, but the server powers all of them at the higher voltage.
- Populate heaviest first. Within a channel, quad-rank goes furthest from the processor and single-rank nearest, and balancing capacity across both processors is what holds performance.
- Every DDR3 option kit here is a single DIMM. A 128GB upgrade is sixteen 8GB kits, not one boxed set.
- Accelerators set a floor. HPE requires a minimum of 4GB of memory per processor once accelerators are installed.
Complete Your SL270s Gen8 Build
The processor sets the memory ceiling on this platform — see the SL270s Gen8 processors before deciding on speed. For the rest of the tray, browse SL270s Gen8 drives, storage controllers, networking adapters and rack options, or start from the full SL270s Gen8 parts listing and the wider HPE parts by server model index. Background reading: understanding memory rank in HPE servers and the importance of memory speed.
SL270s Gen8 Memory FAQ
What is the maximum memory in an SL270s Gen8 tray?
256GB with Registered DIMMs, using sixteen 16GB modules. Load Reduced DIMMs reach 512GB with sixteen 32GB modules, and Unbuffered DIMMs stop at 128GB.
How many memory slots does an SL270s Gen8 have?
Sixteen per tray, arranged as eight per processor across two channels of four DIMMs each. With one processor installed, only eight are usable.
Can I mix Registered and Unbuffered memory?
No. Registered, Unbuffered and Load Reduced are distinct memory technologies and cannot be mixed within one server. Whatever is fitted today is what an upgrade must match.
Why is my SL270s Gen8 memory running below its rated speed?
The processor sets the ceiling. E5-2600 entry parts cap memory at 1066MHz, base parts at 1333MHz and performance parts at 1600MHz; E5-2600 v2 parts raise those to 1333, 1600 and 1866MHz.
Can I use low-voltage PC3L memory on any processor?
Almost. HPE notes that the Intel Xeon E5-2620 does not support DIMMs at 1.35V, and that RBSU can be used to run 1.35V modules at 1.5V instead.
Do HPE memory kits for this tray contain more than one DIMM?
No. Every DDR3 option kit listed for this server is a single DIMM, so filling all sixteen slots means sixteen kits.
✅ Looking for a specific SL270s Gen8 memory module? Browse our full selection below.
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