HPE ProLiant DL145 Gen11 Upgrade Guide: RAM and Storage

Lebenszyklus und Support

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Memory (RAM): 6 DDR5 RDIMM slots

The DL145 Gen11 has six full-size DDR5 registered DIMM slots, one per memory channel. There are no SO-DIMM slots and no soldered memory. Modules must be HPE Smart Memory DDR5 RDIMMs with ECC. LRDIMMs and persistent memory are not supported. HPE's newer QuickSpecs list 16, 32, 64, 96 and 128 GB modules, which gives a maximum of 768 GB with six 128 GB DIMMs. Advanced ECC and Online Spare mode are supported.

Population rules matter. Fit 1, 2, 4 or 6 DIMMs, never 3 or 5, and every DIMM must share the same part number, capacity and rank. Install DIMMs only after the processor is installed, and populate the slots so the channels stay balanced.

On speed, HPE's documents disagree. Older documents give a maximum of 4800 MT/s. The newer QuickSpecs say 4800 or 6400 MT/s with one DIMM per channel. HPE doesn't say which processors reach 6400, but it probably needs a newer CPU than the EPYC 8004 series, so don't count on it. The user guide lists 16, 32, 64 and 128 GB only (no 96 GB), and its memory timing codes differ from the QuickSpecs. Maximum speed and capacity also depend on your processor model and memory configuration. The QuickSpecs memory table is organised by heat sink type (standard 2U or optimized acoustics), so check which one your server has.

Kauftipps

• Buy a matched set of 2, 4 or 6 identical modules, not a mix.
• Look for HPE Smart Memory DDR5 RDIMM part numbers and match the existing part number, capacity and rank.
• Avoid LRDIMMs and persistent memory modules; they are not supported.
• Don't pay extra for 6400 MT/s modules unless you have confirmed your CPU supports that speed.

Storage: SFF or E3.S bays, plus an optional M.2 boot device

The number and type of drive bays depend on the configuration. Some servers have two 2.5-inch hot-plug bays, and others have six hot-plug E3.S NVMe bays. There are no 3.5-inch bays. In the SFF version, HPE's newer QuickSpecs list SAS HDD (2.4 TB), SATA SSD (7.68 TB) and NVMe U.3 SSD (15.36 TB) options. The older document lists a smaller SATA SSD (3.84 TB per drive). The E3.S version is listed at up to 61.44 TB per drive in the newer document and 15.36 TB in the older one. Treat the newer figures as the current maximums, but check them against your exact configuration.

Some servers also have an optional HPE NS204i-u boot device. It holds two M.2 NVMe drives (2 x 480 GB in the original version, 2 x 960 GB in the v2 versions, including a self-encrypting option). It is hot-plug, accessible from outside the chassis, and doesn't use a PCIe slot.

HPE's documents don't give the M.2 module length, the PCIe generation of the drive bays or the maximum SFF drive thickness. Check the HPE OS Boot Device QuickSpecs and the user guide before buying anything outside HPE's listed options. Empty bays should hold blanks, which are needed for proper cooling.

Kauftipps

• Check whether your server has 2 SFF or 6 E3.S bays before shopping; the drives are not interchangeable.
• Buy HPE-qualified drives and keep blanks in any empty bays.
• For the boot device, stick to the 480 GB or 960 GB NS204i-u options HPE lists rather than generic M.2 drives.
• Confirm the NS204i-u is fitted to your SKU before planning on it.

So rüstest du auf

Bevor du startest

• Find your exact SKU and check its drive backplane (2 SFF or 6 E3.S) and whether it has the NS204i-u boot device.
• Back up your data and note your current BIOS and firmware versions.
• Download the HPE user guide and QuickSpecs for your configuration.
• Buy HPE-qualified parts. This is a server platform, not a consumer one.
• Have an anti-static wrist strap and a clean work area ready.

Schritte

1. Back up and plan
   Back up important data and settings, and confirm the new part is on HPE's supported list for your configuration.
2. Power off and unplug
   Shut the server down properly, then remove all power cords. Hot-plug drives and the NS204i-u can be swapped while running, but follow the owner's manual for that procedure.
3. Ground yourself
   Wear an anti-static strap or touch bare metal on the chassis before handling modules or drives.
4. Open the case
   Remove the access panel as shown in HPE's user guide. Follow the manual for exact disassembly, as it can differ between configurations.
5. Install the part
   For memory, fit 1, 2, 4 or 6 identical DIMMs. For drives, fit them in the bays and leave blanks in any empty ones. Make sure the processor is already installed before adding DIMMs.
6. Close up and reconnect
   Refit the access panel, reconnect power and switch on.
7. Check that it is recognised
   Check the BIOS or HPE management tools to confirm the new memory or drives are detected at the capacity and speed you expect. Update the firmware if the part isn't seen.

Gut zu wissen

• HPE's older and newer documents disagree on maximum memory speed (4800 vs 6400 MT/s), SATA SSD size (3.84 vs 7.68 TB) and E3.S drive size (15.36 vs 61.44 TB). Check your exact configuration.
• The 6400 MT/s figure probably needs newer CPUs, but HPE's documents don't say so explicitly.
• The user guide lists no 96 GB module, while the QuickSpecs do.
• HPE's documents don't give the M.2 length, the PCIe generation of the drive bays or the SFF drive thickness limit.
• Bay layout, boot device and PCIe slot count vary by SKU and region (HPE's UK page says North America gets 4 PCIe slots and the rest of the world gets 1 PCIe slot plus an OCP slot).
• CPU upgrades are not covered here because HPE's documents don't list supported replacement processors. Check the QuickSpecs and ask HPE before buying one.

Häufig gestellte Fragen

How much RAM can the HPE ProLiant DL145 Gen11 take?

Up to 768 GB, using six 128 GB DDR5 RDIMMs. There are six DIMM slots and no soldered memory.

Can I fit 3 or 5 DIMMs?

No. HPE says to populate 1, 2, 4 or 6 DIMMs, all with the same part number, capacity and rank.

Does the DL145 Gen11 support 6400 MT/s memory?

HPE's newer QuickSpecs say 4800 or 6400 MT/s with one DIMM per channel, while older documents give 4800 MT/s. The 6400 figure probably needs a newer CPU, which HPE doesn't name. Don't assume an EPYC 8004 server will reach it.

Does it support LRDIMMs or Optane-style persistent memory?

No. LRDIMMs and persistent memory are not supported. Use HPE Smart Memory DDR5 RDIMMs.

What drives does the DL145 Gen11 take?

Depending on the configuration, either 2 hot-plug 2.5-inch bays (SAS, SATA or NVMe U.3) or 6 hot-plug E3.S NVMe bays. There are no 3.5-inch bays. An optional NS204i-u boot device adds two M.2 NVMe drives.

Can I upgrade the CPU?

This is a single-socket EPYC 8004-series server. HPE's documents here don't list which replacement processors are supported, so check HPE's QuickSpecs and your SKU before buying one. Memory speed and capacity also depend on the CPU model.

Offizielle Dokumente und Referenzen

• HPE ProLiant DL145 Gen11 QuickSpecs (newer revision)
  Memory, drive and boot device options and limits
• PDF HPE ProLiant DL145 Gen11 QuickSpecs (older revision mirror)
  Older memory and storage figures for comparison
• PDF HPE ProLiant DL145 Gen11 user guide
  Memory capacities, drive bays and blanks
• HPE ProLiant DL100 servers specifications (UK)
  Bay counts, memory maximum and regional PCIe differences
• HPE ProLiant DL145 Gen11 product page
  Overview and operating environment
• PDF HPE ProLiant DL145 Gen11 SKU data sheet
  Example shipped configuration