UK’s trusted IT infrastructure partner since 2003
sales@servnetuk.com
0800 987 4111
Servnet
FinanceToolsConfiguratorGet in Touch
2U rack · dual Intel Xeon 6 · PRIMERGY M8

Fujitsu PRIMERGY RX2540 M8
The 2U all-rounder, now on Xeon 6

The RX2540 M8 is the 2U dual-socket PRIMERGY that Fsas pitches as its data centre standard. Fsas launched it with the 1U RX2530 M8 in October 2025, built around Intel Xeon 6 processors with P-cores, and it has the most storage and GPU room of the RX M8 models.
CORES PER CPU, MAXIMUM
8 TB[src]
DDR5 ACROSS 32 DIMMS
FRONT 2.5-INCH BAYS
PCIE 5.0 SLOTS
2 / 6[src]
DOUBLE / SINGLE-WIDTH GPUS
3 years[src]
ONSITE WARRANTY
Overview

PRIMERGY RX2540 M8 at a glance

The Fujitsu PRIMERGY RX2540 M8, sold today by Fsas Technologies, is a 2U rack server for one or two Intel Xeon 6 processors from the 6500P and 6700P series, with up to 86 P-cores each and UPI links at 24 GT/s[src].

Fsas pitches the PRIMERGY RX2540 M8 as its data centre standard, with a 40% performance improvement over the previous generation, which is its own claim[src][src]. The configurable parts are the usual ones: 32 DDR5 slots, a choice of five front drive base units, eight PCIe 5.0 slots, OCP 3.0 networking, and iRMC S6 for out-of-band management[src]. M8 systems went on sale in Europe on 15 October 2025[src].

RX2540 M8 processor choices by core countFrom the 8-core 6503P to the 86-core 6787P. Processor types cannot be mixed in one server.Number of Xeon 6 models in the datasheet86 cores1 model80 cores1 model64 cores3 models48 cores3 models36 cores1 model32 cores6 models24 cores4 models16 cores4 models12 cores1 model8 cores2 modelsFrom the 8-core 6503P to the 86-core 6787P. Processor types cannot be mixed in one server.
The 26 Xeon 6 processors in the RX2540 M8 datasheet, grouped by core count. Most choices sit at 16 to 32 cores, the sweet spot for per-core licensed software; the 64 to 86-core parts are for consolidation and dense virtualisation.
Memory

How the 8 TB is reached

Each processor has eight memory channels with two DIMM slots per channel, so a two-socket RX2540 M8 has 32 slots[src]. Fsas lists DDR5 RDIMMs at 6,400 MT/s and MRDIMMs at 8,000 MT/s[src].
RX2540 M8 memory with all 32 slots filledThe 256 GB module is a 3DS RDIMM; it is the only way to the 8 TB maximum.Total memory, two processors, 32 identical RDIMMs32 × 16 GB512 GB32 × 32 GB1 TB32 × 64 GB2 TB32 × 96 GB3 TB32 × 128 GB4 TB32 × 256 GB8 TBThe 256 GB module is a 3DS RDIMM; it is the only way to the 8 TB maximum.
Total memory with all 32 slots filled with one RDIMM size from the datasheet's module list. Our arithmetic; a one-processor server has 16 usable slots and half these totals.

Memory protection includes ECC, scrubbing, SDDC, ADDDC and mirroring[src]. CXL 2.0 is supported by the platform, per Fsas[src].

Storage

Choosing the front base unit

The drive cage is set by the base unit you order, and the datasheet's drive-bay table lists five layouts[src]. Two decide most builds: whether you need NVMe at the front, and whether you need an optical drive bay.
RX2540 M8 front drive base unitsOnly the PCIe units take NVMe; the drive list names only 2.5-inch HDDs.NVMe capableOptical drive bay8 × 2.5-inch SAS/SATA/PCIe✓✓12 × 3.5-inch SAS/SATA——16 × 2.5-inch SAS/SATA/PCIe✓✓24 × 2.5-inch SAS/SATA——24 × 2.5-inch SAS/SATA/PCIe✓—Only the PCIe units take NVMe; the drive list names only 2.5-inch HDDs.
Front base units from the RX2540 M8 datasheet. An optional 6 × 2.5-inch hot-plug rear cage adds bays on top, and two hot-plug M.2 modules can boot the operating system. The datasheet's drive list names only 2.5-inch hard disks, so we confirm 3.5-inch drive options when we quote.
Power

Power supplies and the maximum draw

The RX2540 M8 takes one or two hot-plug supplies, with redundancy optional[src]. In Europe the choice is Titanium: Fsas says Platinum-rated units are only sold in APAC and Japan[src].
RX2540 M8 power supplies against maximum drawA redundant pair protects a build only while one supply alone can carry its load.Watts4,584 W max configuration900 W Titanium200–240 V900 W1,600 W Titanium100–240 V1,600 W2,400 W Titanium100–240 V2,400 W2 × 2,400 Wboth supplies sharing load4,800 WA redundant pair protects a build only while one supply alone can carry its load.
Titanium hot-plug supply ratings from the datasheet against its maximum-configuration active power of 4,584 W. Fsas's Power Safeguard reduces system performance if demand exceeds what the supplies can deliver.
Specifications

PRIMERGY RX2540 M8 technical specifications

SpecificationPRIMERGY RX2540 M8
Processors1–2 × Intel Xeon 6500P / 6700P with P-cores, 26 models, 8 to 86 cores[src]
Memory32 DIMM slots, DDR5 RDIMM 6,400 MT/s or MRDIMM 8,000 MT/s, 16 GB to 8 TB[src]
Front drives8, 16 or 24 × 2.5-inch, or 12 × 3.5-inch; optional 6 × 2.5-inch rear[src]
BootHot-plug M.2 carrier module option[src]
ExpansionUp to 8 × PCIe 5.0 plus an internal RAID slot; double-width GPU slots at slots 3 and 7[src]
GPUsUp to 2 double-width or 6 single-width: L4, A16, RTX PRO 4000, RTX PRO 6000, H200 NVL[src]
Networking1 × 1 GbE onboard; OCP 3.0 adapters from 4 × 1 GbE to 2 × 100 GbE QSFP28[src]
ManagementiRMC S6 with dedicated port; Infrastructure Manager (ISM) Essential or Advanced[src]
SecurityTPM 2.0 option, UEFI Secure Boot, Platform Firmware Resilience, optional intrusion switch[src]
Power1 or 2 hot-plug 900, 1,600 or 2,400 W Titanium; max configuration 4,584 W[src]
Size and weight2U, 482 × 770 × 87 mm (bezel width), 779 mm mounting depth, up to 35.6 kg[src]
Cooling and noise6 hot-plug fans, N+1; 38 / 44 dB(A) idle / operating, typical configuration; 35°C design temperature[src]
Operating systemsWindows Server 2025 and 2022, VMware vSphere 8 and 9, SUSE Linux Enterprise 15 and 16; other Linux derivatives on demand[src][src]
Warranty3 years onsite; service lifecycle at least 5 years after shipment[src]

From the Fsas Technologies RX2540 M8 datasheet (model PR300F). Fsas's positioning card lists the RX2540 M8 as 1U; it is 2U, as the datasheet says.

Good to know

Configuring an RX2540 M8 well

Licensing

Match cores to licences

With 26 processors from 8 to 86 cores, pick the core count your per-core licences can carry, not the biggest part[src]. Licensing calculator →
Storage

Decide NVMe up front

NVMe at the front needs one of the PCIe base units; the 12 × 3.5-inch and SAS/SATA 24-bay units have no NVMe option[src].
GPUs

Two double-width cards maximum

Each takes a full-length x16 slot on its own processor, so a two-GPU build needs both CPUs[src].
Benchmarks

Fsas’s SAP record

Fsas reports a world record in SAP's quote-to-cash (Q2C) benchmark for a two-processor RX2540 M8, certified on 15 October 2025; a benchmark, not a sizing[src].
Supply & quote

Get a PRIMERGY RX2540 M8 configured and quoted

  • We pick processors and memory for your workload and licensing, not the largest parts on the list.
  • We choose the base unit for the drives you will need, including NVMe.
  • We size power supplies and GPUs together so redundancy holds.
  • We quote Fsas Support Packs with the server, inside the 30-day activation window.

Get a PRIMERGY or ETERNUS quote

Tell us what it will run and what it replaces. We configure the system and quote it with Fsas support.

Business enquiries only — please use your company email. Gmail, Hotmail and other personal addresses are not accepted.

We only ship hardware to the countries in the dropdown. Software and maintenance services are global.

We use these details to reply to your enquiry and prepare any quote. No marketing emails without your consent. Privacy Policy

No obligation · response within 4 business hours

FAQs

PRIMERGY RX2540 M8: common questions

What processors does the PRIMERGY RX2540 M8 take?

One or two Intel Xeon 6 processors with P-cores from the 6500P and 6700P series. The datasheet lists 26 models, from the 8-core 6503P to the 86-core 6787P, with no mixing of processor types. A single processor halves the memory slots and leaves the CPU2 slots unavailable.

How much memory does the RX2540 M8 support?

Up to 8 TB across 32 DIMM slots, 16 per processor on eight channels with two slots each. Fsas lists DDR5 RDIMMs at 6,400 MT/s from 16 GB to 256 GB, and MRDIMMs at 8,000 MT/s. With 256 GB modules in all 32 slots you reach the 8 TB maximum.

How many drives does the RX2540 M8 hold?

It depends on the base unit chosen at order: 8, 16 or 24 × 2.5-inch, or 12 × 3.5-inch at the front, with an optional 6 × 2.5-inch rear cage. The 24-bay unit comes in a SAS/SATA version and a SAS/SATA/PCIe (NVMe) version. The drive cage comes with the base unit you order, so choose it for the drives you expect to need.

Does the RX2540 M8 support GPUs?

Yes. Fsas says it takes up to two double-width or six single-width GPUs, depending on the card and base unit. The datasheet lists NVIDIA L4, A16, RTX PRO 4000 Blackwell, RTX PRO 6000 Blackwell Server Edition and H200 NVL. Double-width GPUs use dedicated full-length x16 slots, one per processor.

Which power supplies are available in the UK?

Titanium-rated hot-plug supplies of 900 W, 1,600 W and 2,400 W, one or two per server. Fsas’s datasheet says the Platinum-rated versions are only available in APAC and Japan. The datasheet’s maximum configuration draws 4,584 W, so heavily loaded builds need to be sized against both supplies.

What warranty does the RX2540 M8 have?

A 3-year onsite manufacturer warranty, per the datasheet, with a service lifecycle of at least 5 years after shipment. Fsas Support Packs can extend or upgrade the cover; they must be activated within 30 days of purchase.

The Fsas Technologies range

More PRIMERGY and ETERNUS pages

Keep exploring

Related Servnet guides, tools and hardware

Sources

Every specification on this page comes from Fsas Technologies' own datasheets, web pages and support portal, listed below with their dates. Where a datasheet and other Fsas material disagree, we use the datasheet. Figures are confirmed against the current revision when we quote.

  1. Data sheet: PRIMERGY RX2540 M8 · PDF dated 2 Oct 2026
  2. Fsas press release: New PRIMERGY Servers M8 Generation Features Latest Intel Processors · Munich, 2 Oct 2025
  3. Released operating systems of current x86 Server Systems · PDF dated 23 Oct 2026
  4. Positioning Card: PRIMERGY Server Family · PDF dated 2 Oct 2026

Fujitsu, PRIMERGY, ETERNUS and iRMC are trademarks of Fujitsu; Fsas Technologies is a Fujitsu Group company. Intel, Xeon, AMD, EPYC and NVIDIA are trademarks of their owners. Servnet is an independent UK IT reseller; this page is our own guide to the range.

Talk to a UK specialist

Get expert advice or a no-obligation quote — servers, storage, networking, maintenance, finance and cloud. We reply the same working day.

or call 0800 987 4111