Technical data sheet · ProLiant Gen11 · 1U single-socket AMD EPYC

HPE ProLiant DL325 Gen11Specifications, configurations & comparisons

The DL325 Gen11 is HPE’s 1U rack server built around one 4th or 5th Gen AMD EPYC processor, so every DIMM, PCIe lane and drive hangs off a single socket. This data sheet maps what that socket can carry — up to 160 cores, 12 DDR5 slots and 3 TB, four chassis types from 4 LFF to 20 E3.S — and the cooling rules that decide which processors and options can share the box.

1U Rack1 socketAMD EPYC 9005AMD EPYC 9004HPE iLO 6

160cores on one socketEPYC 9845 · 390 W cTDP

3TBDDR5 maximum HPE quotes12 × 256 GB · 4th Gen reading differs

20E3.S NVMe baysEDSFF chassis · or 10 SFF / 4 LFF

4NVIDIA L4 GPUsGPU chassis only · 2 front, 2 rear

128PCIe 5.0 lanes2 × x16 slots + 2 × OCP 3.0

6Flex Slot PSU options500 W to 1800–2200 W · one or two

Configure a DL325 Gen11 →Get a UK quote Refurbished alternatives ↓

Every figure checked against the HPE ProLiant DL325 Gen11 QuickSpecs (Version 40 - 03-Aug-2026)

Image: Hewlett Packard Enterprise

Form factor: 1U Rack · 1 socket
Processors: AMD EPYC 9005 · AMD EPYC 9004
Memory: 12 × DDR5 RDIMM · up to 3.0 TB
Drive bays: Up to 20 · 8 drive-cage kits
Expansion: 2 × PCIe · 2 × OCP 3.0
GPUs: Up to 4 · 1 listed
Boot: M.2 and NS204i · 5 boot options
Management: HPE iLO 6

01 — Overview

The DL325 Gen11 at a glance

Our read of HPE’s documentation: where the DL325 Gen11 is strong, and the limits worth knowing before you spec one.

Strengths

Both EPYC generations in one chassis: HPE’s tables list 21 5th Gen and 19 4th Gen processors, from the 8-core 9015 to the 160-core 9845, including the 9684X with 1,150 MB of L3.
Four configure-to-order chassis share the 1U shell — 8 SFF, 4 LFF, 20 EDSFF E3.S and a GPU model — so the front end changes while the single EPYC socket and iLO 6 management stay the same.
All 128 PCIe 5.0 lanes serve a single socket, feeding two x16 slots, two OCP 3.0 bays and, on the EDSFF chassis, twenty directly attached E3.S drives.
Basic builds need no RAID card: onboard SATA and NVMe direct attach are wired without a controller.

Watch-outs

Processors of 320 W and above need the Closed-Loop Liquid Cooling heat sink with Liquid Cooling fans, and HPE limits that heat sink to five years of operation before replacement.
HPE quotes 3 TB (12 × 256 GB) for both EPYC generations, yet its only 256 GB kit is a DDR5-6400 part for 5th Gen; the largest DDR5-4800 kit for 4th Gen is 128 GB, which would give 1.5 TB in 12 slots. Both readings are HPE’s own — confirm 4th Gen capacity when quoting.
GPUs live only in the GPU CTO chassis, and the single-width NVIDIA L4 is the only accelerator on the current option list.
Just two rear PCIe slots on the storage-led chassis, and choosing the NS204i-u boot device forces the low-profile secondary riser.
There is no embedded LOM; every network port comes from an OCP 3.0 or stand-up card.

Processors40 SKUs

Cores / CPU8–160

DIMM slots12

Drive-cage kits8

Max bays20

GPUsup to 4

PSU options6 · to 2,200 W

02 — Processors

40 supported processors, mapped

HPE’s Standard Features tables list 40 EPYC processors for this server — 21 from the 5th Gen 9005 series and 19 from the 4th Gen 9004 series — and the chart places each by core count and default cTDP. With a single socket, the processor you pick is the server’s whole compute budget: 8 to 160 cores, 125 W to 400 W, and always 128 PCIe 5.0 lanes and 12 DDR5 channels.

Processor landscape — cores × TDP

40 SKUs · 2 families

AMD EPYC 9005 21AMD EPYC 9004 19Bubble size = L3 cache · hover a bubble for the full SKU

Processor explorer

filter · sort · compare

Sort

Processor	Cores / threads	Base	L3 cache	TDP	W / core	Memory
AMD EPYC 9845	160	2.1 GHz	320 MB	390 W	2.4	DDR5-6400
AMD EPYC 9825	144	2.2 GHz	384 MB	390 W	2.7	DDR5-6400
AMD EPYC 9745	128	2.4 GHz	256 MB	400 W	3.1	DDR5-6400
AMD EPYC 9754	128	2.25 GHz	256 MB	360 W	2.8	DDR5-4800
AMD EPYC 9734	112	2.2 GHz	256 MB	340 W	3.0	DDR5-4800
AMD EPYC 9655P	96	2.6 GHz	384 MB	400 W	4.2	DDR5-6400
AMD EPYC 9645	96	2.3 GHz	256 MB	320 W	3.3	DDR5-6400
AMD EPYC 9684X	96	2.55 GHz	1150 MB	400 W	4.2	DDR5-4800
AMD EPYC 9654P	96	2.4 GHz	384 MB	360 W	3.8	DDR5-4800
AMD EPYC 9634	84	2.25 GHz	384 MB	290 W	3.5	DDR5-4800
AMD EPYC 9565	72	3.15 GHz	384 MB	400 W	5.6	DDR5-6400
AMD EPYC 9575F	64	3.3 GHz	256 MB	400 W	6.3	DDR5-6400
AMD EPYC 9555P	64	3.2 GHz	256 MB	360 W	5.6	DDR5-6400
AMD EPYC 9535	64	2.4 GHz	256 MB	300 W	4.7	DDR5-6400
AMD EPYC 9554P	64	3.1 GHz	256 MB	360 W	5.6	DDR5-4800
AMD EPYC 9534	64	2.45 GHz	256 MB	280 W	4.4	DDR5-4800
AMD EPYC 9475F	48	3.65 GHz	256 MB	400 W	8.3	DDR5-6400
AMD EPYC 9455P	48	3.15 GHz	256 MB	300 W	6.3	DDR5-6400
AMD EPYC 9474F	48	3.6 GHz	256 MB	360 W	7.5	DDR5-4800
AMD EPYC 9454P	48	2.75 GHz	256 MB	290 W	6.0	DDR5-4800
AMD EPYC 9365	36	3.4 GHz	192 MB	300 W	8.3	DDR5-6400
AMD EPYC 9375F	32	3.8 GHz	256 MB	320 W	10.0	DDR5-6400
AMD EPYC 9355P	32	3.55 GHz	256 MB	280 W	8.8	DDR5-6400
AMD EPYC 9335	32	3 GHz	128 MB	210 W	6.6	DDR5-6400
AMD EPYC 9374F	32	3.85 GHz	256 MB	320 W	10.0	DDR5-4800
AMD EPYC 9384X	32	3.1 GHz	768 MB	320 W	10.0	DDR5-4800
AMD EPYC 9354P	32	3.25 GHz	256 MB	280 W	8.8	DDR5-4800
AMD EPYC 9334	32	2.7 GHz	128 MB	210 W	6.6	DDR5-4800
AMD EPYC 9275F	24	4.1 GHz	256 MB	320 W	13.3	DDR5-6400
AMD EPYC 9255	24	3.2 GHz	128 MB	200 W	8.3	DDR5-6400
AMD EPYC 9274F	24	4.05 GHz	256 MB	320 W	13.3	DDR5-4800
AMD EPYC 9254	24	2.9 GHz	128 MB	200 W	8.3	DDR5-4800
AMD EPYC 9224	24	2.5 GHz	64 MB	200 W	8.3	DDR5-4800
AMD EPYC 9175F	16	4.2 GHz	512 MB	320 W	20.0	DDR5-6400
AMD EPYC 9135	16	3.65 GHz	64 MB	200 W	12.5	DDR5-6400
AMD EPYC 9115	16	2.6 GHz	64 MB	125 W	7.8	DDR5-6400
AMD EPYC 9174F	16	4.1 GHz	256 MB	320 W	20.0	DDR5-4800
AMD EPYC 9184X	16	3.55 GHz	768 MB	320 W	20.0	DDR5-4800
AMD EPYC 9124	16	3 GHz	64 MB	200 W	12.5	DDR5-4800
AMD EPYC 9015	8	3.6 GHz	64 MB	125 W	15.6	DDR5-6400

The EPYC 9734 appears in the 4th Gen table but has no processor option kit in Core Options, so 39 of the 40 are orderable.
Heat sink by wattage: 240 W or less takes the Standard heat sink, 260–300 W parts the Performance heat sink, and 320 W or more the Closed-Loop Liquid Cooling heat sink. Core Options opens the Performance band above 240 W; the Cooling notes open it at 260 W.
The EPYC 9254 is supported at a 25 °C system ambient, and the 9384X at 25 °C and never in the EDSFF chassis.
Wattages are the default cTDP. HPE gives the 9255 a 3.25 GHz base clock in Standard Features but 3.20 GHz in its option-kit name.

03 — Memory

12 DDR5 DIMM slots

Twelve DDR5 RDIMM slots, one per channel, all on the single socket. HPE allows a single DIMM or any even number from two to twelve; only a full set of twelve puts memory on every channel. 5th Gen processors take the DDR5-6400 kits and 4th Gen processors the DDR5-4800 kits.

Capacity with every slot filled

by DIMM size

Rated memory speed

from the processor table

Processor family	Up to
AMD EPYC 9005	6400 MT/s
AMD EPYC 9004	4800 MT/s

HPE’s capacity line pairs 3 TB (twelve 256 GB RDIMMs, 4800 MT/s) with 4th Gen processors as well as 5th Gen, but the DDR5-4800 option list stops at 128 GB — 1.5 TB across 12 slots — and the 256 GB 3DS kit is listed as DDR5-6400 for 5th Gen. The document carries both figures without reconciling them.
96 GB, 128 GB and 256 GB DIMMs require the Performance or Liquid Cooling fan kit.
Mixing rules: no x4 alongside x8 parts and no 3DS alongside standard RDIMMs; HPE supports neither LRDIMM nor persistent memory here.
Protection is Advanced ECC plus Online Spare, which shifts work from a degrading rank to a spare one.

04 — Storage

8 drive-cage kits, up to 20 bays

Which drives you get is decided by the configure-to-order chassis: 8 SFF (10 with the optional 2-bay cage), 4 LFF, 20 EDSFF E3.S, or the GPU model with 4 SFF or 8 E3.S. HPE sells the SFF and GPU cages as separate kits, so the layouts below are the complete chassis maxima rather than single backplanes.

Headline layouts

front panel view

Front panel

EDSFF CTO: the 20-bay E3.S 1T backplane comes with the chassis and the drives attach directly to the processor; HPE’s 20EDSFF cable kit runs all twenty at x2. The capacity table tops out at 307.2 TB (20 × 15.36 TB).

SAS/SATANVMeSAS/SATA + NVMe

Controllers & boot

HPE Smart Array E208e-p SR Gen10 (8 External Lanes/No Cache) 12G SAS PCIe Plug-in Controller — RAID, none cache. External; PCIe plug-in; up to 8 SAS/SATA external drives; listed as 'Essential RAID Controller'; CBE with remote key manager not supported (LKM supported); OBSE/factory reset not supported
HPE MR216i-o Gen11 x16 Lanes without Cache OCP SPDM Storage Controller — RAID, none cache. OCP; up to 16 SAS/SATA/NVMe drives
HPE MR408i-o Gen11 x8 Lanes 4GB Cache OCP SPDM Storage Controller — RAID, 4GB cache. OCP; up to 8 SAS/SATA/NVMe drives; requires 96W Li-ion battery (P01366-B21) or Smart Hybrid Capacitor (P02377-B21)
HPE MR416i-o Gen11 x16 Lanes 8GB Cache OCP SPDM Storage Controller — RAID, 8GB cache. OCP; up to 16 SAS/SATA/NVMe drives; requires P01366-B21 battery or P02377-B21 capacitor
HPE MR216i-p Gen11 x16 Lanes without Cache PCI SPDM Plug-in Storage Controller — RAID, none cache. PCIe plug-in; up to 16 SAS/SATA/NVMe drives
HPE MR416i-p Gen11 x16 Lanes 8GB Cache PCI SPDM Plug-in Storage Controller — RAID, 8GB cache. PCIe plug-in; up to 16 SAS/SATA/NVMe drives; requires P01366-B21 battery or P02377-B21 capacitor
HPE SR932i-p Gen11 x32 Lanes 8GB Wide Cache PCI SPDM Plug-in Storage Controller — RAID, 8GB cache. PCIe plug-in; up to 16 SAS/SATA/NVMe drives; requires P01366-B21 battery or P02377-B21 capacitor
HPE NS204i-u Gen11 NVMe Hot Plug Boot Optimized Storage Device — Boot. Includes hot-plug dual 480GB NVMe M.2 in a preconfigured RAID 1 mirror; externally accessible, does not occupy a PCIe slot; Requires Performance (P58462-B21) or Liquid Cooling (P59668-B21) Fan Kit, Secondary Low-Profile Riser (P55029-B21) and NS204i-u Cable Kit (P57013-B21); cannot be selected with the M.2 enablement kit; not allowed on EDSFF CTO with Liquid Cooling Fan Kit
HPE NS204i-u Gen11 NVMe Hot Plug Boot Optimized Storage Device (P48183-B21) - 2 x 480GB NVMe M.2, RAID 1 — boot
HPE NS204i-u v2 480GB NVMe Hot Plug Boot Optimized Storage Device (P78279-B21) — boot
HPE NS204i-u v2 960GB NVMe Hot Plug Boot Optimized Storage Device (P81160-B21) — boot
HPE NS204i-u v2 960GB NVMe SED Hot Plug Boot Optimized Storage Device (P81162-B21) — boot

All 12 controllers and 5 boot options

HPE NS204i-u v2 480GB NVMe Hot Plug Boot Optimized Storage Device — Boot. RAID 1 preconfigured; Requires Performance (P58462-B21) or Liquid Cooling (P59668-B21) Fan Kit, Secondary Low-Profile Riser (P55029-B21) and NS204i-u Cable Kit (P57013-B21); cannot be selected with the M.2 enablement kit; not allowed on EDSFF CTO with Liquid Cooling Fan Kit
HPE NS204i-u v2 960GB NVMe Hot Plug Boot Optimized Storage Device — Boot. RAID 1 preconfigured; Requires Performance (P58462-B21) or Liquid Cooling (P59668-B21) Fan Kit, Secondary Low-Profile Riser (P55029-B21) and NS204i-u Cable Kit (P57013-B21); cannot be selected with the M.2 enablement kit; not allowed on EDSFF CTO with Liquid Cooling Fan Kit
HPE NS204i-u v2 960GB NVMe SED Hot Plug Boot Optimized Storage Device — Boot. RAID 1 preconfigured; self-encrypting; Requires Performance (P58462-B21) or Liquid Cooling (P59668-B21) Fan Kit, Secondary Low-Profile Riser (P55029-B21) and NS204i-u Cable Kit (P57013-B21); cannot be selected with the M.2 enablement kit; not allowed on EDSFF CTO with Liquid Cooling Fan Kit
HPE ProLiant DL325 Gen11 NVMe/SATA M.2 Enablement Kit — Boot. Requires two M.2 SSDs of the same interface (SATA or NVMe); NO RAID supported; mutually exclusive with NS204i-u; not allowed on EDSFF CTO with Liquid Cooling Fan Kit
HPE ProLiant DL325 Gen11 NVMe/SATA M.2 Enablement Kit (P57014-B21) - 2 x M.2 (SATA or NVMe), no RAID — boot

An 8SFF chassis ordered without a backplane ships as a driveless configuration, with no controllers or drives.
MegaRAID (MR) and SmartRAID (SR) controllers cannot be mixed in one server.
Boot is either the hot-plug NS204i-u (two M.2 NVMe drives mirrored in RAID 1, reachable from outside) or the M.2 enablement kit (two SATA or NVMe drives, no RAID) — never both.
On the EDSFF chassis running Liquid Cooling fans, neither the NS204i-u nor the M.2 kit is allowed.
SFF capacity maxima: 76.8 TB of SAS or SATA SSD (10 × 7.68 TB) and 153.6 TB of U.3 NVMe (10 × 15.36 TB).

Every documented drive-cage kit

8 with drive bays

2.5-inch3.5-inchEDSFF (E1.S / E3.S)

05 — Accelerators & I/O

GPUs, PCIe and networking

GPU support belongs to the GPU CTO chassis alone. The single card HPE currently lists is the NVIDIA L4 24 GB — single-width, half-height, PCIe Gen4 x16 — and its option note allows four: two in the front risers and two at the rear. HPE’s chassis-type line instead describes the GPU model as taking two single-width or two double-width cards. That chassis is also the deepest DL325 Gen11, at 81.84 cm. Up to 4 × NVIDIA L4 (single-width) · GPU CTO chassis only.

NVIDIA L4 24GB PCIe Accelerator for HPE

single-wide

24GB · 4

I/O topology

128 lanes per CPU

One EPYC socket supplies all 128 PCIe 5.0 lanes. On the three storage-led chassis they surface as two x16 riser slots and two OCP 3.0 bays; the GPU chassis adds two full-length risers at the front.

Network adapters HPE lists

33 options

Adapter	Ports	Form
Intel I350-T4 Ethernet 1Gb 4-port BASE-T Adapter for HPE	4 × 1GbE	PCIe
Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter for HPE	4 × 1GbE	PCIe
Broadcom BCM57416 Ethernet 10Gb 2-port BASE-T Adapter for HPE	2 × 10GbE	PCIe
Broadcom BCM57412 Ethernet 10Gb 2-port SFP+ Adapter for HPE	2 × 10GbE	PCIe
Broadcom BCM57414 Ethernet 10/25Gb 2-port SFP28 Adapter for HPE	2 × 10/25GbE	PCIe
Broadcom BCM57504 Ethernet 10/25Gb 4-port SFP28 Adapter for HPE	4 × 10/25GbE	PCIe
Intel E810-XXVDA2 Ethernet 10/25Gb 2-port SFP28 Adapter for HPE	2 × 10/25GbE	PCIe
Mellanox MCX631102AS-ADAT Ethernet 10/25Gb 2-port SFP28 Adapter for HPE	2 × 10/25GbE	PCIe
Intel E810-XXVDA4 Ethernet 10/25Gb 4-port SFP28 Adapter for HPE	4 × 10/25GbE	PCIe
NVIDIA Ethernet 10/25Gb 2-port SFP28 NVMe-oF Crypto Adapter for HPE	2 × 10/25GbE	PCIe
Broadcom BCM57608 Ethernet 100Gb 2-port QSFP112 Adapter for HPE	2 × 100GbE	PCIe
Mellanox MCX623106AS-CDAT Ethernet 100Gb 2-port QSFP56 Adapter for HPE	2 × 100GbE	PCIe
Intel E810-CQDA2 Ethernet 100Gb 2-port QSFP28 Adapter for HPE	2 × 100GbE	PCIe
NVIDIA Ethernet 100Gb 2-port NVMe-oF Offload Adapter for HPE	2 × 100GbE	PCIe
HPE Slingshot SA210S Ethernet 200Gb 1-port PCIe NIC	1 × 200GbE	PCIe
Intel I350-T4 Ethernet 1Gb 4-port BASE-T OCP3 Adapter for HPE	4 × 1GbE	OCP 3.0
Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T OCP3 Adapter for HPE	4 × 1GbE	OCP 3.0
Broadcom BCM57412 Ethernet 10Gb 2-port SFP+ OCP3 Adapter for HPE	2 × 10GbE	OCP 3.0
Broadcom BCM57416 Ethernet 10Gb 2-port BASE-T OCP3 Adapter for HPE	2 × 10GbE	OCP 3.0
Broadcom BCM57414 Ethernet 10/25Gb 2-port SFP28 OCP3 Adapter for HPE	2 × 10/25GbE	OCP 3.0
Broadcom BCM57504 Ethernet 10/25Gb 4-port SFP28 OCP3 Adapter for HPE	4 × 10/25GbE	OCP 3.0
Intel E810-XXVDA2 Ethernet 10/25Gb 2-port SFP28 OCP3 Adapter for HPE	2 × 10/25GbE	OCP 3.0
Mellanox MCX631432AS-ADAI Ethernet 10/25Gb 2-port SFP28 OCP3 Adapter for HPE	2 × 10/25GbE	OCP 3.0
Broadcom BCM57608 Ethernet 100Gb 2-port QSFP112 OCP3 Adapter for HPE	2 × 100GbE	OCP 3.0
Intel E810-CQDA2 Ethernet 100Gb 2-port QSFP28 OCP3 Adapter for HPE	2 × 100GbE	OCP 3.0
HPE SN1610E 32Gb 1-port Fibre Channel Host Bus Adapter	1 × 32Gb Fibre Channel	PCIe
HPE SN1610E 32Gb 2-port Fibre Channel Host Bus Adapter	2 × 32Gb Fibre Channel	PCIe
HPE SN1700E 64Gb 1-port Fibre Channel Host Bus Adapter	1 × 64Gb Fibre Channel	PCIe
HPE SN1700E 64Gb 2-port Fibre Channel Host Bus Adapter	2 × 64Gb Fibre Channel	PCIe
HPE SN1610Q 32Gb 1-port Fibre Channel Host Bus Adapter	1 × 32Gb Fibre Channel	PCIe
HPE SN1610Q 32Gb 2-port Fibre Channel Host Bus Adapter	2 × 32Gb Fibre Channel	PCIe
HPE SN1700Q 64Gb 1-port Fibre Channel Host Bus Adapter	1 × 64Gb Fibre Channel	PCIe
HPE SN1700Q 64Gb 2-port Fibre Channel Host Bus Adapter	2 × 64Gb Fibre Channel	PCIe

The GPU chassis adds front slots 4 and 5, both PCIe 5.0 x16 full-height, full-length.
HPE’s base-model table gives the GPU chassis three x16 risers (slots 1, 4 and 5), while the L4 notes place two rear cards in slots 1 and 2 — the two readings differ on slot 2.
Both OCP slots support shared NIC and Wake-on-LAN; the OCP1 Upgrade Cable Kit (P56658-B21) lets slot 21 run PCIe Gen5 x16.
Networking always comes from an OCP 3.0 or stand-up adapter — HPE fits no embedded ports.

06 — Power & cooling

6 power supplies, 500–2,200 W

Only HPE Flex Slot supplies fit — a minimum of one and a maximum of two, and they must match. Six are listed: Platinum units at 500, 800 and 1600 W, Titanium units at 1000 W and 1800–2200 W, and the 1600 W −48 VDC unit.

AC−48 V DC

The 1600 W Platinum AC supply is high-line only (200–240 VAC); the 500 W and 800 W units deliver their full rating at 100 VAC.
Under the 1600 W −48 VDC supply, the Standard Features list repeats the note “200–240VAC power input only”, at odds with its DC rating; the document does not resolve this, so confirm the input with HPE before ordering. That unit is ordered with HPE’s 1600 W −48 VDC power cable lug kit.
Up to seven fans with redundancy: one failed rotor leaves the server degraded but running, two can lead to shutdown.
With a processor of 240 W or less, Performance fans are still required on the 8SFF and 4LFF chassis if the build includes the 8SFF x4 or 2SFF backplane, 96 GB+ DIMMs, NS204i-u or M.2 boot, 10/25G, 100/200G or InfiniBand networking, or a GPU.
Direct liquid cooling cold-plate modules are offered, need seven Performance fan kits, and ship only as part of a whole rack.

07 — Management, security & OS

Run it, secure it, choose the OS

Management

HPE iLO 6 (iLO 6 ASIC · 64 MB flash · 8 Gbit DDR4 with ECC)
iLO Standard with Intelligent Provisioning by default; iLO Advanced optional
iLO RESTful API (Redfish), IPMI 2.0, SNMP v3
HPE OneView Standard (download) · OneView Advanced optional
HPE Compute Ops Management subscription included
OpenBMC capable through iLO 6 transfer of ownership
Dedicated 1GbE rear iLO port and front iLO service port

Security

Immutable Silicon Root of Trust, matched by the AMD Secure Processor before boot
UEFI Secure Boot and Secure Start
TPM 2.0 embedded on the mainboard (no option kit)
FIPS 140-3 and Common Criteria — iLO 6 certification in progress
CNSA support · configurable for PCI DSS compliance
Digitally signed firmware, secure recovery and rollback
Secure erase of NAND and user data
Optional bezel lock and chassis intrusion detection
Optional HPE Trusted Supply Chain (P36394-B21)

Operating systems

HPE lists supported operating systems and hypervisors in its Servers Support & Certification Matrices, not in the QuickSpecs
UEFI Class 3 — NVMe, iSCSI and HTTP/HTTPS boot in UEFI mode

08 — Compare

How the DL325 Gen11 compares with its family

The DL325 Gen11 beside its successor, HPE’s other AMD rack servers and the Intel DL320 Gen11 — each bar is drawn from that model’s own spec file.

This modelSiblings and successorEach value from that model’s own verified spec file · bars scale per column

DL325 Gen12 data sheet DL345 Gen11 data sheet DL365 Gen11 data sheet DL385 Gen11 data sheet DL320 Gen11 data sheet Dell PowerEdge R6615 data sheet Lenovo ThinkSystem SR635 V3 data sheet Dell PowerEdge R6715 data sheet

09 — Use cases

Four builds that suit the DL325 Gen11

Four builds matched to the jobs HPE names for this server — software-defined compute, content delivery, VDI and secure edge. Every part comes from the options the configurator permits on the DL325 Gen11, and each opens there ready to adjust.

Virtualisation

Software-defined compute node

A 48-core, 300 W processor stays on the air-cooled Performance heat sink, twelve DIMMs occupy every channel, and eight U.3 NVMe drives connect straight to the CPU with no cable kit or controller in the path.

1 × AMD EPYC 9455P — 48 cores @ 3.15 GHz, 300 W
12 × 64 GB DDR5-6400 — 768 GB, every channel populated
8 × 3.84 TB U.3 NVMe on the 8SFF x4 backplane, direct attach
NS204i-u hot-plug boot mirror (2 × M.2 NVMe, RAID 1)
Broadcom BCM57414 2 × 25GbE SFP28 OCP 3.0
2 × 1000 W Flex Slot Titanium

The 8SFF x4 backplane, NS204i-u and 25GbE card each call for Performance fans, and the NS204i-u also brings the low-profile secondary riser.

Open this build in the configurator →

Content delivery

Twenty-drive E3.S cache node

HPE lists CDN among the jobs this server is built for. The EDSFF chassis puts twenty E3.S drives behind the bezel with no RAID card in the path, and a 100GbE OCP adapter leaves both PCIe slots free.

1 × AMD EPYC 9335 — 32 cores @ 3 GHz, 210 W
12 × 32 GB DDR5-6400 — 384 GB
20 × 7.68 TB E3.S NVMe — 153.6 TB raw
Broadcom BCM57608 2 × 100GbE QSFP112 OCP 3.0
2 × 1000 W Flex Slot Titanium

The EDSFF chassis cannot take the EPYC 9384X, and if it runs Liquid Cooling fans the NS204i-u and M.2 boot options are barred.

Open this build in the configurator →

VDI & inference

Four-L4 GPU node

The GPU chassis carries four single-width L4 cards — two behind the front bezel, two at the rear — plus eight E3.S drives, giving virtual desktops or light inference a GPU per quarter of the box in 1U.

1 × AMD EPYC 9535 — 64 cores @ 2.4 GHz, 300 W
4 × NVIDIA L4 24 GB (single-width · 2 front, 2 rear)
12 × 64 GB DDR5-6400 — 768 GB
8 × 7.68 TB E3.S NVMe in the GPU chassis cage
Broadcom BCM57414 2 × 25GbE SFP28 OCP 3.0
2 × 1600 W Flex Slot Platinum (200–240 VAC)

Rear L4 cards cannot run with Liquid Cooling fan kits, which every processor of 320 W or more requires — so a four-L4 build stays below 320 W. HPE recommends a 25 °C ambient for an L4 in slot 2 with Performance fans.

Open this build in the configurator →

Secure edge

Four-bay branch server

For a branch or edge site the 4LFF chassis keeps bulk disk, an optional DVD drive and a 16-core, 125 W processor in 1U, with hardware RAID from an OCP-form controller.

1 × AMD EPYC 9115 — 16 cores @ 2.6 GHz, 125 W
12 × 16 GB DDR5-6400 — 192 GB
4 × 8 TB 3.5" SAS 7.2K — 32 TB raw
MR408i-o RAID controller (4 GB cache) in an OCP bay
Broadcom BCM5719 4 × 1GbE BASE-T OCP 3.0
2 × 500 W Flex Slot Platinum

The MR408i-o needs HPE’s 96 W battery or Smart Hybrid Capacitor, and with the NIC it fills both OCP bays.

Open this build in the configurator →

10 — Refurbished alternatives

When a refurbished ProLiant makes more sense

If a one-socket 1U is the goal but DDR5 and PCIe 5.0 are not, the two earlier DL325 generations are available re-certified through our refurbished HPE configurator.

Gen10 Plus · re-certified

HPE ProLiant DL325 Gen10 Plus

1U · one AMD EPYC 7002/7003
Up to 64 cores · 128 PCIe 4.0 lanes
16 DIMM slots · up to 4 TB DDR4
Up to 10 SFF / NVMe · iLO 5

The direct predecessor — the same one-socket 1U formula on DDR4 and PCIe 4.0, for lighter consolidation and edge jobs.

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Gen10 · re-certified

HPE ProLiant DL325 Gen10

1U · one AMD EPYC 7001
Up to 32 cores
Up to 2 TB DDR4
iLO 5

The lowest-cost route into a single-socket EPYC 1U, when 32 cores and 2 TB are plenty.

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11 — Full specifications

HPE ProLiant DL325 Gen11 specifications

Chassis & cooling

Form factor	1U rack · one processor
Chassis types	8 SFF (+2 SFF or optical) · 4 LFF (+optical) · 20 E3.S EDSFF · GPU (4 SFF or 8 E3.S)
Height × width	4.29 × 43.46 cm
Depth	8SFF 64.94 cm · 4LFF and EDSFF 70.89 cm · GPU 81.84 cm
Weight	8SFF 12.56–15.54 kg · 4LFF 14.31–17.07 kg · EDSFF 13.71–17.76 kg · GPU 16.59–21.05 kg
Fans	Up to 7, redundant · Standard, Performance or Liquid Cooling kits
Operating temperature	10–35 °C standard · 5–10 °C and 35–45 °C for approved configurations
Sound power (idle / operating)	4.7 / 5.7 B (Value) · 5.1 / 5.9 B (Perf)

Processor

Socket	1 × SP5 (6096-pin LGA)
Families	4th Gen AMD EPYC 9004 · 5th Gen AMD EPYC 9005
Cores	8 to 160
Default cTDP	125 W to 400 W
PCIe	128 lanes of PCIe 5.0
Chipset	None — system-on-chip design

Memory

Slots	12 DDR5 RDIMM · 12 channels · 1 DIMM per channel
DIMM kits	16–128 GB DDR5-4800 (4th Gen) · 16–128 GB DDR5-6400 and 256 GB 3DS (5th Gen)
Maximum	3 TB as quoted (12 × 256 GB) · largest DDR5-4800 kit is 128 GB
Population	1, 2, 4, 6, 8, 10 or 12 DIMMs
Protection	Advanced ECC · Online Spare

Storage

Front maximum	20 × E3.S 1T NVMe · 10 × SFF · 4 × LFF (chassis-dependent)
Controllers	MR216i-o/-p, MR408i-o, MR416i-o/-p, SR932i-p · E208e-p (external)
Boot	NS204i-u (2 × M.2 NVMe, RAID 1) or M.2 enablement kit (no RAID)
Optical	DVD-ROM or DVD-RW on the 8SFF and 4LFF chassis

Expansion & networking

PCIe slots	Slot 1 x16 FHFL · slot 2 x16 LP or FHHL · GPU chassis adds front slots 4 and 5
OCP 3.0	Slots 21 and 22, PCIe 5.0 x8 (x16 connector)
Embedded NIC	None
Fibre Channel	SN1610E/Q 32Gb and SN1700E/Q 64Gb HBAs

Accelerators

GPU	Up to 4 × NVIDIA L4 24 GB — GPU CTO chassis only

Power

Supplies	1 or 2 HPE Flex Slot, matching
AC	500 W Platinum · 800 W Platinum · 1000 W Titanium · 1600 W Platinum (200–240 VAC) · 1800–2200 W Titanium
DC	1600 W −48 VDC

Ports & management

Front	1 × USB 3.2 Gen1 · iLO service port
Rear	2 × USB 3.2 Gen1 · VGA · 1GbE iLO · optional serial
Internal	2 × USB 3.2 Gen1
Video	Integrated, up to 1920 × 1200 @ 60 Hz, 16 MB
Management	HPE iLO 6

12 — FAQ

DL325 Gen11 questions, answered from the documentation

How much memory does the HPE ProLiant DL325 Gen11 take?

HPE quotes 3 TB — 12 × 256 GB RDIMMs, one per channel — for both 4th and 5th Gen EPYC. Its option list, however, offers the 256 GB 3DS kit only as a DDR5-6400 part for 5th Gen; the largest DDR5-4800 kit for 4th Gen is 128 GB, which would come to 1.5 TB. The QuickSpecs contain both figures, so confirm 4th Gen capacity when quoting.

Which processors fit the DL325 Gen11?

A single AMD EPYC from the 4th Gen 9004 or 5th Gen 9005 series. HPE’s tables list 40 models from 8 to 160 cores and 125 W to 400 W, and 39 of them have option kits — the 9734 does not. Anything of 320 W or more needs the Closed-Loop Liquid Cooling heat sink.

How many drives does the DL325 Gen11 hold?

That depends on the chassis you order: 20 EDSFF E3.S NVMe bays, 10 SFF bays (8 plus an optional 2-bay cage), 4 LFF bays or, in the GPU chassis, either 4 SFF or 8 E3.S. Boot drives sit apart from these, on the NS204i-u module or an M.2 kit.

Can the DL325 Gen11 run GPUs?

Yes, in the GPU CTO chassis only. The one accelerator HPE lists today is the single-width NVIDIA L4 24 GB, up to four per server with two at the front and two at the rear. The overview still mentions double-width cards, but none is on the current option list, and the chassis-type line gives the GPU model two single-width cards rather than four.

How many PCIe slots does it have?

Two PCIe 5.0 x16 slots at the rear — slot 1 full-height full-length, slot 2 low-profile or full-height half-length — plus OCP 3.0 slots 21 and 22 at x8 each. The GPU chassis adds two full-length x16 slots at the front.

What power supplies are available?

The DL325 Gen11 uses one or two identical HPE Flex Slot supplies. AC choices are 500 W, 800 W and 1600 W Platinum (the 1600 W needs 200–240 VAC) plus 1000 W and 1800–2200 W Titanium; for DC plant there is a 1600 W −48 V unit. Mixed supplies are not supported.

How big and heavy is the DL325 Gen11?

It is a 1U chassis 4.29 cm high and 43.46 cm wide. Depth is 64.94 cm for the 8SFF model, 70.89 cm for 4LFF and EDSFF, and 81.84 cm for the GPU model. HPE’s maximum weights are 15.54 kg (8SFF), 17.07 kg (4LFF), 17.76 kg (EDSFF) and 21.05 kg (GPU).

How does the DL325 Gen11 differ from the DL325 Gen12?

The Gen12 takes 5th Gen EPYC only, up to 192 cores and 500 W, doubles the DIMM slots to 24 with two per channel for 6 TB, and moves to iLO 7 and M-CRPS power supplies. The Gen11 keeps 4th Gen processor support, 12 slots at one DIMM per channel, iLO 6 and Flex Slot supplies.

How is it different from the DL385 Gen11?

The DL385 Gen11 is the 2U, two-socket sibling: 24 DIMM slots and 6 TB with both processors, up to eight PCIe slots, and a GPU chassis for four double-wide or eight single-wide cards. The DL325 Gen11 gives that up for a 1U, one-socket footprint.

Is the DL325 Gen11 end of life?

HPE’s QuickSpecs (version 40, August 2026) do not give an end-of-sale or end-of-support date for this model. Its base warranty covers three years of parts and labour with next-business-day on-site response, and our server end-of-life checker adds HPE’s dates once they are published.

Sources & verification

Where these figures come from

HPE ProLiant DL325 Gen11 QuickSpecs (Version 40 - 03-Aug-2026) — Standard Features processor, memory, expansion-slot, storage, power, interface and security sections; Step 1 CTO chassis tables; Core Options processor, memory, drive-cage, GPU, cooling and power-supply notes; Technical Specifications.
HPE ProLiant Compute DL325 Gen12 QuickSpecs (Version 12 - 03-Aug-2026) — Used only for the Gen11 vs Gen12 comparison.
HPE ProLiant DL385 Gen11 QuickSpecs (Version 47 - 08-Sep-2026) — Used only for the DL385 comparison.
HPE product imagery (HPE DAM) — Front, rear and top-view renders s00011722, s00011724 and s00011725.

Specifications are extracted from HPE’s published documents and independently re-checked line by line. Configurations are quote-based; availability and exact options are confirmed at quotation. Last reviewed 2026-09-11.

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The DL325 Gen11 at a glance

Strengths

Watch-outs

40 supported processors, mapped

Processor landscape — cores × TDP

Processor explorer

12 DDR5 DIMM slots

Capacity with every slot filled

Rated memory speed

8 drive-cage kits, up to 20 bays

Headline layouts

Controllers & boot

Every documented drive-cage kit

GPUs, PCIe and networking

NVIDIA L4 24GB PCIe Accelerator for HPE

I/O topology

Network adapters HPE lists

6 power supplies, 500–2,200 W

Run it, secure it, choose the OS

Management

Security

Operating systems

How the DL325 Gen11 compares with its family

Four builds that suit the DL325 Gen11

Software-defined compute node

Twenty-drive E3.S cache node

Four-L4 GPU node

Four-bay branch server

When a refurbished ProLiant makes more sense

HPE ProLiant DL325 Gen10 Plus

HPE ProLiant DL325 Gen10

HPE ProLiant DL325 Gen11 specifications

Chassis & cooling

Processor

Memory

Storage

Expansion & networking

Accelerators

Power

Ports & management

DL325 Gen11 questions, answered from the documentation

Where these figures come from

Buy & configure

Guides & family

Plan the deployment

Support & lifecycle

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