LM TEK 4U8GPU10KW specifications
A barebone 8-GPU AI server platform in 4U, engineered around a closed in-chassis liquid cooling loop with no external CDU. Eight full-height PCIe Gen 5 slots, platform-level power to 8000 W sustained, and no motherboard lock-in; the buyer supplies board, CPUs, GPUs, and storage. EK-engineered cooling, built in the EU.
A barebone platform: LM TEK supplies the chassis, the integrated cooling loop, and platform-level power. You specify the board, CPUs, GPUs, memory, and storage.
- Full-height PCIe Gen 5 GPU slots
- 8
- Per GPU slot, sustained envelope
- 700 W
- 19-inch rack · 760 × 482 × 178 mm
- 4U
- 80 PLUS Titanium · with redundancy
- 5 × 2000 W
Full datasheet
| Specification | Value |
|---|---|
| Form factor | 4U · 19-inch rack chassis |
| Dimensions (L × W × H) | 760 × 482 × 178 mm |
| Net mass (barebone) | 38 kg approximate |
| GPU slots | Up to 8 × full-height PCIe Gen 5 |
| GPU power envelope | Up to 700 W per slot sustained |
| CPU sockets supported | AMD SP5 · Intel LGA 4677 · Intel LGA 4710 · Intel LGA 4710-2 (per chosen motherboard) |
| Motherboard form factors | EATX · SSI-CEB · SSI-EEB · SSI-TEB |
| Memory slots | Per chosen motherboard; typically 24 × DDR5 RDIMM |
| Storage bay | Single mounted drive bay for 5 × 2.5-inch drives · in chassis airflow path · positioned for straightforward access during service |
| Networking | Per chosen motherboard |
| Cooling type | Integrated liquid · in-chassis closed loop · in-chassis radiator · no external CDU |
| Coolant materials stack | Nickel-plated copper · stainless steel · POM Acetal · EPDM · brass · EK-CryoFuel |
| Working pressure | 2500 Pa |
| Max pressure | 30 000 Pa (with EK-Pro PRM) · 75 000 Pa otherwise |
| Operating temperature range | 5–30°C ambient · 5–60°C coolant |
| Power supply | 5 × 2000 W CRPS · 80 PLUS Titanium · with redundancy |
| Power distribution | Platform-level PDU · independent of motherboard VRM |
| PSU redundancy | N+1 at maximum spec: four units carry the 8000 W sustained platform maximum, the fifth unit provides redundancy · implemented by the platform PDU, so lower install specs increase the redundancy margin to the capacity available above current draw |
| Max chassis power | Up to 8000 W sustained |
| Country of origin | Slovenia |
| Thermal / power envelope | 10 kW installed (5 × 2 kW); 8 kW sustained, N+1 · 8 × 700 W GPU slots |
All figures are measured at supplier level. Third-party independent measurement reports are available on request under NDA.
| Specification | Value |
|---|---|
| Loop type | Closed integrated loop, fully in-chassis |
| Loop components | Pump, manifold, GPU and CPU water blocks, radiator, reservoir, fan and pump controller, integrated bypass valve |
| Radiator placement | Monolith triple-width pass-through radiator · front intake; airflow paths engineered alongside the loop |
| Radiator core | 130 mm thick core · 120 × 360 mm standard cooling surface · fits 3 × 120 mm standard fans per side |
| Fans | 6 × industrial-grade fans |
| Protection | System shutdown at 60°C coolant temperature · hard shutdown on failure of either pump (system boots only when at least one pump reports function) · audible alarm on any fan failure |
| Coolant | EK-CryoFuel; loop pre-filled and pre-tested at assembly |
| Serviceability | Dry-break front quick-disconnect couplings · built-in coolant level indicator (reservoir window) |
| Cooling design authority | EK engineering team; same materials and pressure envelope as the LM TEK liquid-cooling catalogue |
From starter footprint to production maximum.
-
01 · Modest start
2× NVIDIA RTX 6000 Ada
- CPU
- 1× AMD EPYC 9354 (32-core)
- Memory
- 256 GB DDR5 ECC
- Storage
- 2× 3.84 TB NVMe
Workstation crossover · departmental AI · single-team inference
-
02 · Mid-tier
4× NVIDIA RTX PRO 6000 Blackwell
- CPU
- 2× AMD EPYC 9474F (48-core)
- Memory
- 512 GB DDR5 ECC
- Storage
- 4× 3.84 TB NVMe
Lab / research group · multi-user inference · light fine-tuning
-
03 · Production maximum
8× NVIDIA H200 NVL
- CPU
- 2× Intel Xeon Platinum 8580
- Memory
- 1 TB DDR5 ECC
- Storage
- 8× 7.68 TB NVMe
Enterprise inference · production fine-tuning · multi-tenant
Reference configurations are examples drawn from real customer builds, not a fixed bill of materials. The final BOM is specified per deployment; a configuration inside the published validation specs is quotable as is, and LM TEK engineering is available for anything outside them.
Configure a system →Dimensions and rack fit.
- Length
- 760 mm
- Width
- 482 mm
- Height · 4U
- 178 mm
- Net mass, barebone, approximate
- 38 kg
Confirm rack clearance against the dimensional drawing (760 × 482 × 178 mm) before rack integration.
The envelope the platform is rated for.
Ambient and coolant
5–30°C ambient · 5–60°C coolant.
Pressure
Working pressure 2500 Pa; maximum pressure 30 000 Pa with EK-Pro PRM, 75 000 Pa otherwise.
Power
10 kW installed (5 × 2 kW); 8 kW sustained, N+1.
The 700 W per-slot sustained envelope and the 8000 W sustained chassis figure are platform maxima; achievable sustained power depends on the chosen components and ambient conditions.
Operation outside these limits is not supported.
Specified per deployment, within a published validation envelope.
The platform ships with published validation specs: supported board formats and sockets, the per-slot GPU envelope, block availability, and the operating limits. A configuration inside them is quotable as is. For a board, GPU, or cooling requirement outside them, send LM TEK engineering the intended configuration.
Modification projects →