Technical data sheet · ThinkSystem V3 · tower, single-socket

Lenovo ThinkSystem ST250 V3Specifications, configurations & comparisons

The ThinkSystem ST250 V3 is Lenovo’s single-socket office tower: one Xeon 6300, Xeon E-2400 or Pentium processor, up to 128 GB of ECC DDR5, and room for 16 small or eight large drives plus optical or RDX media. Lenovo pitches it at small businesses, branch offices, retail, education, banking and the public sector. This page maps its storage combinations, slots, power options and rack conversion.

Tower1 socketPentiumXeon E-2400Xeon 6300XClarity Controller 2

8cores maximumXeon 6300 or E-2400 · 95 W max

128GBECC DDR5 ceiling4 × 32 GB UDIMM

162.5" hot-swap baysor 8 × 3.5", or 8 × 2.5" + 4 × 3.5"

4full-height PCIe slots1 × Gen5 x16 + 3 × Gen4 x4

25.25" media baysDVD-RW or internal RDX dock

30.5dBAidle sound pressuretypical configuration (LpAm)

Configure an ST250 V3 →Get a UK quote Refurbished alternatives ↓

Every figure checked against the Lenovo ThinkSystem ST250 V3 Server Product Guide (August 25, 2026)

Image: Lenovo

Form factor: Tower · 1 socket
Processors: Pentium · Xeon E-2400 · Xeon 6300
Memory: 4 × DDR5 UDIMM · up to 128 GB
Drive bays: Up to 16 · 6 backplane options
Expansion: 4 × PCIe
GPUs: Up to 1 · 4 listed
Boot: M.2 · 3 boot options
Management: XClarity Controller 2

01 — Overview

The ST250 V3 at a glance

Our read of Lenovo’s documentation: where the ST250 V3 is strong, and the limits worth knowing before you spec one.

Strengths

Built for the office floor: Lenovo declares 30.5 dBA idle and 33.2 dBA at full processor load for its typical configuration.
Up to 16 hot-swap 2.5-inch or eight 3.5-inch drives — or eight 2.5-inch and four 3.5-inch together — in a tower 176 mm wide.
Two 5.25-inch media bays take DVD-RW drives or an internal RDX dock for removable backup.
Four full-height slots, one of them a 75 W PCIe 5.0 x16 slot for a GPU such as the RTX A1000.
Physical security for open offices: a padlock loop for the side panel, a Kensington slot, and an optional lockable front door and intrusion switch.

Watch-outs

Three of the four slots are PCIe 4.0 x4 with a 25 W limit, and there is no OCP slot.
Memory peaks at 128 GB across four UDIMMs and falls to 3600 MT/s when all four hold 32 GB modules; every fan is fixed rather than hot-swap.
The M.2 boot adapter goes only in slot 4 and cannot coexist with an optical drive, because the two share a connector.
The 300 W fixed supply rules out a GPU, is not ErP Lot 9 compliant and caps the processor at 80 W — less if a media drive is fitted.
The storage table builds the 16-bay and hybrid layouts with 16-port or paired adapters, yet the controller table currently lists only two 8-port RAID cards, one of each.

Processors18 SKUs

Cores / CPU2–8

DIMM slots4

Backplanes6

Max bays16

GPUsup to 1

PSU options4 · to 800 W

02 — Processors

18 supported processors, mapped

The ST250 V3 takes one LGA 1700 processor from 18 listed SKUs — two Pentium Gold, eight Xeon E-2400 and eight Xeon 6300 — spanning two to eight cores and a 35–95 W TDP range. Both of Lenovo’s processor tables list all 18, and none is sold as a separate option kit.

Processor landscape — cores × TDP

18 SKUs · 3 families

Pentium 2Xeon E-2400 8Xeon 6300 8Bubble 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
Intel Xeon E-2488	8	3.2 GHz	24 MB	95 W	11.9	DDR5-4400
Intel Xeon E-2478	8	2.8 GHz	24 MB	80 W	10.0	DDR5-4400
Intel Xeon E-2468	8	2.6 GHz	24 MB	65 W	8.1	DDR5-4400
Intel Xeon 6369P	8	3.3 GHz	24 MB	95 W	11.9	DDR5-4400
Intel Xeon 6357P	8	3 GHz	24 MB	80 W	10.0	DDR5-4400
Intel Xeon 6353P	8	2.7 GHz	24 MB	65 W	8.1	DDR5-4400
Intel Xeon E-2486	6	3.5 GHz	18 MB	95 W	15.8	DDR5-4400
Intel Xeon E-2456	6	3.3 GHz	18 MB	80 W	13.3	DDR5-4400
Intel Xeon E-2436	6	2.9 GHz	18 MB	65 W	10.8	DDR5-4400
Intel Xeon 6349P	6	3.6 GHz	18 MB	95 W	15.8	DDR5-4400
Intel Xeon 6337P	6	3.5 GHz	18 MB	80 W	13.3	DDR5-4400
Intel Xeon 6333P	6	3.1 GHz	18 MB	65 W	10.8	DDR5-4400
Intel Xeon E-2414	4	2.6 GHz	12 MB	55 W	13.8	DDR5-4400
Intel Xeon E-2434	4	3.4 GHz	12 MB	55 W	13.8	DDR5-4400
Intel Xeon 6315P	4	2.8 GHz	12 MB	55 W	13.8	DDR5-4400
Intel Xeon 6325P	4	3.5 GHz	12 MB	55 W	13.8	DDR5-4400
Intel Pentium G7400	2	3.7 GHz	6 MB	46 W	23.0	DDR5-4400
Intel Pentium G7400T	2	3.1 GHz	6 MB	35 W	17.5	DDR5-4400

Memory is held to 4400 MHz in this server regardless of the processor’s or the DIMM’s rating.
Choose 5600 MHz UDIMMs with a Xeon 6300; the 4800 MHz 32 GB module works only with Pentium and Xeon E-2400 parts.
The supply sets the processor ceiling: 95 W with the 500 W fixed or 800 W hot-swap units, 80 W with the 300 W fixed unit.
The heat sink carries its own fan. With an 80 W heat sink, ambient can reach 45 °C for processors up to 60 W and 40 °C up to 70 W.
Lenovo leaves any integrated processor graphics unused and disables Intel AMT; video comes from the XCC2 or a GPU card.

03 — Memory

4 DDR5 DIMM slots

Four UDIMM slots sit on two DDR5 channels, two per channel. One, two or four identical ECC UDIMMs are supported, and a pair is split across the channels in slots 1 and 3. With one module per channel memory runs at 4400 MT/s; filling all four drops it to 4000 MT/s with single-rank or 3600 MT/s with dual-rank modules.

Capacity with every slot filled

by DIMM size

Operating speed

per Lenovo memory tables

Processor	1 DIMM / channel	2 DIMMs / channel
Pentium · Xeon E-2400 · Xeon 6300	4400 MT/s	4000 MT/s (1R) · 3600 MT/s (2R)

Lenovo lists a 16 GB single-rank UDIMM and two 32 GB dual-rank UDIMMs (4800 and 5600 MHz); four 32 GB modules give the 128 GB maximum.
Three DIMMs is not a supported quantity, and modules with different part numbers cannot be mixed.
Neither memory mirroring nor rank sparing is available.

04 — Storage

6 backplane options, up to 16 bays

Two stacked drive cages take hot-swap 2.5-inch or 3.5-inch backplanes, or simple-swap 3.5-inch bracket plates, across 12 documented configurations; every server must have drive bays. Hot-swap layouts run SAS or SATA through a RAID adapter or SATA only on the onboard ports, while simple-swap layouts are SATA, with an NVMe option.

Headline layouts

front panel view

Front panel

Config 11: two 8-bay 2.5-inch backplanes. Lenovo cables them to a 16-port adapter or two 8-port adapters — see the controller note below. The documented ceiling is 122.88 TB with 7.68 TB SATA SSDs.

SAS/SATANVMeSAS/SATA + NVMe

Controllers & boot

Onboard 6Gb SATA (8 ports) - Intel VROC SATA RAID (RSTe) RAID 0/1/10/5/50 (AVV0) or AHCI/JBOD — Software RAID. onboard; up to 8 drives (6 if ODD installed); NVMe not RAID-capable via VROC; RSTe not supported with hypervisors
ThinkSystem RAID 940-8i 4GB Flash PCIe Gen4 12Gb Adapter — RAID, 4GB cache. slots 2,3,4; supercap included
ThinkSystem RAID 545-8i PCIe Gen4 12Gb Adapter — RAID. slots 2,3,4; no supercap
Intel VROC SATA RAID (Intel RSTe) — Software RAID. Onboard SATA ports with Intel VROC SATA RAID (formerly Intel RSTe) software RAID - lp1803 L459, lp1803 L1690; not supported by virtualization hypervisors
ThinkSystem M.2 SATA/x4 NVMe 2-Bay Adapter (BM8X, software RAID) in slot 4 — boot
ThinkSystem M.2 RAID B540i-2i SATA/NVMe Adapter (BYFF, hardware RAID 0/1 via SAS3808N) in slot 4 — boot
M.2 cable kit 4Z57A88898 (dummy PCIe card + cables); M.2 mutually exclusive with optical drives — boot

The eight onboard SATA ports run up to eight SATA drives, or six once an optical drive is fitted, because two ports are then reserved for media.
Onboard VROC SATA RAID offers RAID 0, 1, 10, 5 and 50. Hypervisors can use the ports only in AHCI mode, and Windows allows at most six drives per RSTe array.
Controller caveat: the configuration table uses 16-port or paired 8-port adapters for the 16-bay and hybrid layouts, but the current controller table lists only the RAID 940-8i (4 GB flash) and RAID 545-8i, one of each — we confirm the controller for those layouts when we quote.
Config 12 is the hybrid: eight 2.5-inch and four 3.5-inch hot-swap bays behind a RAID adapter.
Lenovo’s configuration table labels the NVMe layout with one NVMe drive, while its specifications and backplane description give two.

Every documented backplane

6 with drive bays

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

05 — Accelerators & I/O

GPUs, PCIe and networking

One GPU fits, in slot 2 — the PCIe 5.0 x16, 75 W slot. Lenovo lists four NVIDIA cards: RTX A400, RTX A1000, T400 and T1000. A GPU needs the 500 W fixed or an 800 W hot-swap supply, slot 3 must stay empty for cooling, and Windows or ESXi cannot be factory-installed alongside it. One GPU in slot 2 (up to 75 W), with slot 3 left empty.

NVIDIA RTX A400 4GB PCIe Gen4 Active GPU

single-wide

4GB · up to 1

NVIDIA RTX A1000 8GB PCIe Gen4 Active GPU

single-wide

8GB · up to 1

NVIDIA T1000 8GB PCIe Active GPU

single-wide

8GB · up to 1

NVIDIA T400 4GB PCIe Active GPU

single-wide

4GB · up to 1

I/O topology

1 socket

Lenovo gives the processor a budget of 16 PCIe 5.0 lanes and 4 PCIe 4.0 lanes at most, alongside its two DDR5 memory channels. At the rear that becomes one PCIe 5.0 x16 slot and three PCIe 4.0 x4 slots, all full-height and half-length, alongside two onboard 1GbE ports and a dedicated management port.

Network adapters Lenovo lists

7 options

Adapter	Ports	Form
Broadcom BCM5720 2 x 1GbE RJ45 onboard (one shareable with XCC) + dedicated XCC 1GbE port	2 × 1GbE	embedded
ThinkSystem Broadcom 5719 1GbE RJ45 4-Port PCIe Ethernet Adapter	4 × 1GbE	PCIe
ThinkSystem I350-T4 PCIe 1Gb 4-Port RJ45 Ethernet Adapter	4 × 1GbE	PCIe
ThinkSystem Broadcom 57416 10GBASE-T 2-Port PCIe Ethernet Adapter	2 × 10GbE	PCIe
ThinkSystem Intel X710-T4L 10GBase-T 4-Port PCIe Ethernet Adapter	4 × 10GbE	PCIe
ThinkSystem Broadcom 57414 10/25GbE SFP28 2-port PCIe Ethernet Adapter	2 × 25GbE	PCIe
ThinkSystem Intel E810-DA2 10/25GbE SFP28 2-Port PCIe Ethernet Adapter	2 × 25GbE	PCIe

Slots 1 and 3 are open-ended, so longer cards fit but run with fewer lanes. The summary table calls slot 1 a physical x4 connector; the I/O section calls it x1.
Slot 4 is x4 electrically in an x8 connector, and it is the only home for the M.2 boot adapter.
NIC placement varies by card: the Broadcom 57416 and 57414 fit slots 1 and 4 only, the X710-T4L slots 2 to 4; each card type is limited to two.
There is no OCP slot. RAID adapters go in slot 2, 3 or 4; external SAS storage uses up to two 440-8e HBAs, and Fibre Channel is not supported.
An internal USB 3.0 port on the system board connects the RDX dock.

06 — Power & cooling

4 power supplies, 300–800 W

There are three power routes: a fixed 300 W Gold supply, a fixed 500 W Platinum supply, or one or two 800 W CRPS hot-swap units (Platinum or Titanium) that form a redundant pair when two are installed. All four accept 110 V or 220 V AC.

With the 300 W unit there is no GPU; Lenovo’s limits are an 80 W processor with M.2 and no media drive, or 70 W / 60 W with a media drive and no M.2.
The 500 W fixed and 800 W hot-swap supplies allow a 95 W processor, one GPU and the full 16-bay, eight-LFF or hybrid front. That same maximum-configuration column marks optical and tape drives as not supported; only the 300 W columns with a 70 W or 60 W processor allow them.
Lenovo’s power-supply table marks the 500 W Platinum and 800 W Titanium units as ErP Lot 9 compliant and the 300 W Gold and 800 W Platinum units as not, although its specifications table describes the 800 W Platinum hot-swap option as compliant.
Input current at 100–127 V / 200–240 V: 5 A / 2.5 A for 300 W, 7 A / 3.5 A for 500 W and 10 A / 5 A for 800 W models.
Cooling is two front fans on the drive cages (one with a single cage), one rear fan and the heat-sink fan, all fixed and variable-speed. Heat output runs from 484 BTU/h (141 W) to 1397 BTU/h (409 W).

07 — Management, security & OS

Run it, secure it, choose the OS

Management

XClarity Controller 2 — the management section names a Pilot4 XE401 BMC (dual-core Arm Cortex-A9); the security list cites an AST2600
Dedicated rear 1GbE XCC port; one onboard port can also carry management traffic
XCC2 Platinum upgrade (software licence): remote console, virtual media, power capping, System Guard — the key features and Table 2 instead name XCC Advanced for remote control
XClarity Provisioning Manager (F1) · XClarity Essentials OneCLI, UpdateXpress, BOMC
XClarity Administrator, Integrator plugins and Energy Manager
Redfish, IPMI 2.0 (IPMI-over-LAN disabled by default), SNMPv3, CIM-XML
XClarity One Mobile through the front USB 2.0 port

Security

TPM 2.0 · Nationz TPM plug-in module for China
Platform Firmware Resiliency (NIST SP 800-193) · NIST SP 800-147B compliant
UEFI Secure Boot, factory-enabled (BPKQ) or left off for later (BPKR)
Padlock loop for the side panel and a rear Kensington slot
Optional lockable front door (B41K) and chassis intrusion switch (B4LS)
Intel Boot Guard, SGX and TME/MKTME · TXT with Xeon E
Self-encrypting drives with IBM SKLM key management

Operating systems

Microsoft Windows Server 2022 and 2025
Red Hat Enterprise Linux 8.8–8.10, 9.2–9.8 and 10.0–10.2 (a shorter list with Xeon 6300)
SUSE Linux Enterprise Server 15 SP5–SP7 and 16 (SP6 onward in the Xeon 6300 list)
Ubuntu 22.04, 24.04 and 26.04 LTS
VMware ESXi 8.0 U2, 8.0 U3, 9.0 and 9.1 (8.0 U3 onward with Xeon 6300) · factory preload available
The two OS lists are headed “Pentium or Xeon E” and “Pentium or Xeon 6300”, so for Pentium the older releases appear in only one of them

08 — Compare

ST250 V2 → ST250 V3

Lenovo compares the ST250 V3 with the ST250 V2 and the first ST250. The chassis layout carries over — the same bay counts, two media bays and four slots — while the V3 adds DDR5, a PCIe 5.0 x16 slot, larger supplies and a second NVMe bay in the simple-swap cage.

Previous generationThinkSystem ST250 V2

This modelThinkSystem ST250 V3

Form factor

Tower, convertible to 5U rack

Processors

Xeon E-2300, up to 8 cores / 95 W · Pentium

Xeon 6300 or E-2400, up to 8 cores / 95 W · Pentium

Chipset

Intel C256

Intel C266

Memory

4 × DDR4 UDIMM, up to 128 GB

4 × DDR5 UDIMM, up to 128 GB

Drive bays

8 × 3.5" HS, 16 × 2.5" HS, 8 × 3.5" SS, or 7 × 3.5" SS + 1 NVMe

8 × 3.5" HS, 16 × 2.5" HS, 8 × 3.5" SS, or 6 × 3.5" SS + 2 NVMe

PCIe slots

4 (x4, x16, x4, x4) · x16 slot PCIe 4.0

4 (x4, x16, x4, x4) · x16 slot PCIe 5.0

Rear USB

4 × USB 3.2 Gen 2 (10 Gb/s)

4 × USB 3.2 Gen 1 (5 Gb/s)

Power supplies

250 W or 300 W fixed, or 550 W hot-swap

300 W or 500 W fixed, or 800 W hot-swap

Source: Lenovo Press LP1803 (ST250 V3 product guide), Table 1 — Comparing the ST250 V3 to the ST250s.

The ST250 V3 family side by side

The 1U SR250 V3 has the same 18-processor features table (its ordering table lists ten), 128 GB UDIMM ceiling and XCC2 management, but trades drive count and media bays for a 561 mm rack chassis. Below the ST250 V3, the ST50 V3 and ST45 V3 towers use non-hot-swap drives; above it, the ST650 V3 tower takes one or two processors. Bars compare each model’s own spec-file limits.

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

Head-to-head comparisons

Every figure on this page, set against the machines buyers weigh it up with.

vs T360 vs MicroServer Gen11 vs ML30 Gen11 vs T160

SR250 V3 data sheet ST50 V3 data sheet ST45 V3 data sheet ST650 V3 data sheet Dell PowerEdge T160 data sheet Dell PowerEdge T360 data sheet HPE ProLiant ML30 Gen11 data sheet HPE ProLiant ML110 Gen11 data sheet

09 — Use cases

Three builds that suit the ST250 V3

Three tower specifications for offices, back rooms and branch sites, assembled from the ST250 V3 parts in our configurator. Cards are tied to particular slots in this chassis, so every build names its slot plan; the supply rating and room temperature limits are rechecked for the exact parts at quotation.

Small office

First office server

For a first server in a small office: a four-core, 55 W Xeon E-2434 with 32 GB and four 4 TB SATA drives in hot-swap trays, run from the onboard SATA ports with VROC RAID. Lenovo’s limits allow this load on the 300 W fixed supply.

1 × Intel Xeon E-2434 — 4 cores, 3.4 GHz, 55 W
2 × 16 GB TruDDR5 ECC UDIMM — 32 GB (4400 MT/s)
4 × 4 TB 3.5-inch SATA HDD, hot-swap
Onboard 6 Gb SATA ports, no RAID adapter (Lenovo offers VROC RSTe RAID or AHCI on them)
Onboard 2 × 1GbE
300 W Gold fixed supply
Windows Server 2025

The 300 W supply cannot power a GPU and is not ErP Lot 9 compliant — pick the 500 W Platinum unit if either matters. Windows accepts RSTe arrays of up to six drives.

Open this build in the configurator →

Backup & archive

Eight-bay backup server

Eight 3.5-inch hot-swap bays filled with 20 TB SATA drives give 160 TB raw behind a RAID 940-8i. The lower media bay is the home Lenovo gives an internal RDX dock for removable, rotated copies, subject to the power-table caveat below.

1 × Xeon 6333P — 6 cores @ 3.1 GHz, 65 W
2 × 16 GB TruDDR5 ECC UDIMM — 32 GB (4400 MT/s)
8 × 20 TB 3.5-inch SATA HDD on two hot-swap backplanes — 160 TB raw
RAID 940-8i with 4 GB flash
Broadcom 57416 2 × 10GBASE-T PCIe (slot 1 or 4)
800 W Titanium CRPS hot-swap supply — fit two for redundancy
Windows Server 2025

Drives of 20 TB or more hold the room to 35 °C. Lenovo’s configuration table pairs the eight-LFF hot-swap layout with an X350-generation 8-port adapter, so we confirm the RAID 940-8i pairing before quoting. Lenovo’s power table marks optical and tape drives as not supported in its 500 W / 800 W maximum configuration, so an RDX dock alongside 800 W supplies is confirmed with Lenovo before it is added.

Open this build in the configurator →

Graphics & light AI

Tower with a professional GPU

An NVIDIA RTX A1000 in the PCIe 5.0 x16 slot, an eight-core Xeon E-2488 at 3.2 GHz and 128 GB of memory suit GPU-accelerated applications on site, with four SATA SSDs on a RAID 545-8i and 25GbE networking.

1 × Intel Xeon E-2488 — 8 cores, 3.2 GHz, 95 W
NVIDIA RTX A1000 8 GB in slot 2 (PCIe 5.0 x16)
4 × 32 GB TruDDR5 ECC UDIMM — 128 GB (3600 MT/s, four dual-rank modules)
4 × 1.92 TB SATA SSD in an 8-bay 2.5-inch cage
RAID 545-8i in slot 4
Broadcom 57414 2 × 25GbE in slot 1
800 W Titanium CRPS hot-swap supply
Ubuntu Server 24.04 LTS

Slot 3 must stay empty beside a GPU, which is why the RAID card sits in slot 4 and the NIC in slot 1 — and it leaves no slot for M.2. A GPU, a 95 W processor or a 25GbE card each hold ambient temperature to 35 °C. Lenovo’s configuration table pairs the 8-bay 2.5-inch backplane with an X350-8i adapter, so we confirm the RAID 545-8i pairing when quoting.

Open this build in the configurator →

10 — Refurbished alternatives

When a refurbished server makes more sense

Lenovo ThinkSystem isn’t in our refurbished configurators. The closest re-certified alternative to an entry tower is HPE’s two-socket ML350 Gen10; if the server is going into a rack anyway, Dell’s 1U R440 is another DDR4-era option.

Gen10 · re-certified

HPE ProLiant ML350 Gen10

Tower or 4U rack · two sockets
24 DIMM slots · up to 3 TB DDR4
Up to 24 × SFF or 12 × LFF
iLO 5

Sites that want a tower but need more cores, memory or drives than a single-socket entry server offers.

Configure a refurbished ML350 Gen10 →

14G · re-certified

Dell PowerEdge R440

1U rack · two sockets
16 DIMM slots · up to 1 TB DDR4
10 × 2.5" or 4 × 3.5"
iDRAC9

When the “tower” will really sit in a rack, and more memory headroom matters more than media bays.

Configure a refurbished R440 →

Refurbished Lenovo servers Refurbished HPE configurator Refurbished Dell configurator New vs refurbished cost calculator

11 — Full specifications

Lenovo ThinkSystem ST250 V3 specifications

Chassis & cooling

Form factor	Tower · 5U in a rack with the optional Rack Mount Kit (4U server on a 1U tray)
Machine types	7DCE (3-year warranty) · 7DCF (1-year warranty)
Dimensions (W × H × D)	176 × 444 × 578 mm including feet
Weight	Up to 23.95 kg (3.5-inch) or 15.81 kg (2.5-inch), fully configured
Fans	Two front (one with a single cage), one rear, one on the heat sink · all fixed
Chipset	Intel C266
Acoustics (LpAm, typical)	30.5 dBA idle · 33.2 dBA at 100 % CPU
Rack kit	4XF7A78620 · full-out ball-bearing rails with CMA · 665–900 mm between flanges · option part only

Processor

Socket	One LGA 1700
Families	Pentium Gold G7400 / G7400T · Xeon E-2400 · Xeon 6300
Cores	2 to 8
TDP	35 W to 95 W
PCIe lanes	Up to 16 × PCIe 5.0 + 4 × PCIe 4.0 per processor

Memory

Slots	4 × DDR5 UDIMM on 2 channels
DIMMs	16 GB (1R) and 32 GB (2R) ECC UDIMM
Speed	4400 MT/s (1–2 DIMMs) · 4000 MT/s (4 × 1R) · 3600 MT/s (4 × 2R)
Maximum	128 GB (4 × 32 GB)
Protection	ECC · no mirroring or rank sparing

Storage

Front bays	16 × 2.5" HS, 8 × 3.5" HS, 8 × 2.5" + 4 × 3.5" HS, or up to 8 × 3.5" simple-swap
NVMe	2 × 3.5" simple-swap bays (onboard, no NVMe RAID)
Raw maximum	122.88 TB (16 × 7.68 TB SATA SSD) · 176 TB (8 × 22 TB HDD)
Controllers	Onboard SATA (RAID 0/1/10/5/50) · RAID 940-8i 4 GB · RAID 545-8i
Boot	2 × M.2 on the BM8X or B540i-2i adapter, slot 4 only
Media bays	2 × 5.25" half-height: DVD-RW (up to 2) or RDX dock (lower bay)

Expansion & networking

PCIe slots	Slot 2: PCIe 5.0 x16, 75 W · slots 1, 3, 4: PCIe 4.0 x4, 25 W · all FHHL
Onboard LAN	2 × 1GbE RJ45 (Broadcom BCM5720) + dedicated XCC2 port
OCP	None
External storage	440-8e SAS HBA (up to 2) · no Fibre Channel
GPU	One of RTX A400, RTX A1000, T400 or T1000, in slot 2

Power

Supplies	300 W Gold fixed · 500 W Platinum fixed · 1 or 2 × 800 W CRPS hot-swap (Platinum or Titanium)
Redundancy	Two hot-swap supplies form a redundant pair; fixed supplies are single
Input	110 V or 220 V AC
Heat output	141 W minimum · 409 W maximum

Ports & video

Front	USB 3.2 Gen 1 · USB 2.0 (XCC)
Rear	4 × USB 3.2 Gen 1 · VGA · serial · 1GbE XCC · 2 × 1GbE · NMI pinhole
Internal	USB 3.0 (for the RDX dock)
Video	G200, 16 MB, in the XCC2 · up to 1920 × 1200 at 60 Hz

Environment & warranty

ASHRAE	A2; some models A3 and A4 (the standard-specifications table mentions A3 only)
Ambient limits	45 °C: CPU ≤ 60 W + 80 W heat sink · 40 °C: ≤ 70 W + 80 W heat sink · 35 °C: ≤ 80 W + 80 W or ≤ 95 W + 95 W heat sink, or a GPU, M.2 ≤ 480 GB, U.2/U.3, 25GbE or 3.5" drives of 20 TB+ · 30 °C: 960 GB M.2
Maximum altitude	3,050 m
Warranty	1 or 3 years by machine type · CRU and onsite, 9 × 5 next business day

12 — FAQ

ST250 V3 questions, answered from the documentation

What is the maximum memory of the Lenovo ThinkSystem ST250 V3?

128 GB, from four 32 GB ECC UDIMMs. In that four-module layout the dual-rank DIMMs run at 3600 MT/s; with one or two modules memory runs at 4400 MT/s. One, two or four identical DIMMs are supported.

How many drives does the ST250 V3 take?

Up to 16 × 2.5-inch or 8 × 3.5-inch hot-swap drives, or eight 2.5-inch and four 3.5-inch together. Simple-swap versions take up to eight 3.5-inch SATA drives, or six SATA plus two NVMe. Two M.2 boot drives can be added in slot 4.

Does the ST250 V3 have optical or backup drive bays?

Yes — two half-height 5.25-inch bays for up to two DVD-RW drives, or one DVD drive and an internal RDX dock in the lower bay. With the onboard SATA controller, fitting an optical drive limits the server to six drives, and optical drives cannot be combined with M.2 boot. Lenovo’s power table allows optical or tape only in its 300 W columns, so we confirm media drives against the chosen supply.

Can the ST250 V3 be mounted in a rack?

Yes, with the ThinkSystem ST45/ST50/ST250 Series Rack Mount Kit, sold only as an option part. The server occupies 4U on its side and the kit’s tray adds 1U, so it takes 5U; the rails include a cable management arm.

Does the ST250 V3 support a GPU?

One, in slot 2: an NVIDIA RTX A400, RTX A1000, T400 or T1000. It needs the 500 W fixed or an 800 W hot-swap supply, and slot 3 must be left empty for cooling.

Which power supplies can the ST250 V3 use?

A fixed 300 W Gold or 500 W Platinum supply, or one or two 800 W CRPS hot-swap supplies in Platinum or Titanium. Only the hot-swap option gives a redundant pair. The 300 W unit supports no GPU and lower-TDP processors.

How loud is the ST250 V3?

Lenovo declares a sound pressure of 30.5 dBA idle and 33.2 dBA at full processor load in its typical configuration, and 35.9 dBA in its maximum test configuration. Sound power ranges from 4.6 to 5.1 bels.

How does the ST250 V3 differ from the SR250 V3?

Their processor-features tables list the same 18 processors, and both have a 128 GB UDIMM ceiling and XCC2 management. The SR250 V3 is a 1U rack server, 561 mm deep, with eight 2.5-inch or four 3.5-inch bays, up to two low-profile slots and only 800 W hot-swap supplies in its ordering table. The ST250 V3 adds bays, media bays and full-height slots.

What changed from the ST250 V2?

The V3 moves from Xeon E-2300 and DDR4 to Xeon E-2400 or Xeon 6300 with DDR5, upgrades the x16 slot to PCIe 5.0, and replaces the 550 W hot-swap supply with an 800 W unit. Bay counts, media bays and slot count stay the same, but its four rear USB ports are 5 Gb/s rather than 10 Gb/s.

Is the Lenovo ThinkSystem ST250 V3 end of life?

Not according to the ST250 V3 product guide, which still gives part numbers and feature codes for new orders and names no end-of-service date. Machine type 7DCF comes with one year of base warranty and 7DCE with three, and Lenovo sells service upgrades on top; check the end-of-life checker linked below for any date Lenovo announces later.

Sources & verification

Where these figures come from

Lenovo ThinkSystem ST250 V3 Server Product Guide (August 25, 2026) — ST250 V3 vs ST250 series (Table 1), standard specifications (Table 2), processors (Tables 13–14), memory (Table 16 and rules), backplanes and storage configurations (Tables 17–18), M.2 (Table 22), controllers (Table 26), media bays (Tables 37, 39), I/O, NICs (Table 42), GPUs (Table 44), power (Tables 45–46), security, rack kit (Tables 55–56), OS support, dimensions (Table 58) and operating environment.
Lenovo ThinkSystem SR250 V3 Server Product Guide — SR250 V3 depth, bays, slots and power supplies quoted in the family intro and FAQ.

Specifications are extracted from Lenovo’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 ST250 V3 at a glance

Strengths

Watch-outs

18 supported processors, mapped

Processor landscape — cores × TDP

Processor explorer

4 DDR5 DIMM slots

Capacity with every slot filled

Operating speed

6 backplane options, up to 16 bays

Headline layouts

Controllers & boot

Every documented backplane

GPUs, PCIe and networking

NVIDIA RTX A400 4GB PCIe Gen4 Active GPU

NVIDIA RTX A1000 8GB PCIe Gen4 Active GPU

NVIDIA T1000 8GB PCIe Active GPU

NVIDIA T400 4GB PCIe Active GPU

I/O topology

Network adapters Lenovo lists

4 power supplies, 300–800 W

Run it, secure it, choose the OS

Management

Security

Operating systems

ST250 V2 → ST250 V3

The ST250 V3 family side by side

Head-to-head comparisons

Three builds that suit the ST250 V3

First office server

Eight-bay backup server

Tower with a professional GPU

When a refurbished server makes more sense

HPE ProLiant ML350 Gen10

Dell PowerEdge R440

Lenovo ThinkSystem ST250 V3 specifications

Chassis & cooling

Processor

Memory

Storage

Expansion & networking

Power

Ports & video

Environment & warranty

ST250 V3 questions, answered from the documentation

Where these figures come from

Buy & configure

Guides & family

Plan the deployment

Support & lifecycle

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