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The workstation/server version to plan for is the Tesla V100 PCIe board, not an SXM2 or NVLink module. It is a dual-slot, 10.5-inch PCIe Gen3 x16 card rated at 250 W maximum board power. Its heatsink is passive, so it depends on strong, directed chassis airflow; a quiet desktop case with loosely arranged fans is not a safe default. NVIDIA lists an 83 °C maximum GPU operating temperature, 85 °C HBM maximum, 87 °C slowdown point and 90 °C shutdown point. There is no single NVIDIA-specified whole-system PSU wattage: size the supply from the 250 W board load plus the processor, memory, storage, fans, other cards and the number of V100 boards, then verify the exact server or workstation’s power cabling and cooling design.
Tesla V100 PCIe specifications that determine a build
Many compatibility mistakes come from treating every V100 as the same product. The PCIe board is a plug-in, dual-slot accelerator. SXM2 and NVLink versions are modules for purpose-built systems and do not use the same mechanical, cooling or power assumptions. The figures below apply to the Tesla V100 PCIe form factor.
| Characteristic | Tesla V100 PCIe detail | Why it matters |
|---|---|---|
| Host interface | PCIe Gen3 x16 | The motherboard or riser must provide an open, electrically x16 slot; a connector that is only physically x16 but electrically narrower can limit the interface. |
| Card width | Dual-slot | Reserve two adjacent slot positions and check that neighboring components do not block the heatsink or the auxiliary-power plug. |
| Length | 10.5 inches | Measure the usable clearance from the rear bracket to obstructions such as drive cages, front fans and cables. |
| Maximum board power | 250 W | This is the accelerator board budget, not the required wattage for the complete computer. |
| Cooling design | Passive heatsink | The host chassis must force air through the heatsink. The board does not provide a conventional active GPU fan. |
| Heatsink airflow direction | Bidirectional; left-to-right or right-to-left airflow is supported | The card can be installed in systems using either airflow orientation, provided the chassis actually supplies that directed flow. |
| PCIe interconnect bandwidth | 32 GB/s | This is the PCIe specification figure for the board; it is not the NVLink bandwidth sometimes quoted for other V100 systems. |
Memory capacity and board condition are separate purchasing checks. Listings can differ by memory size and by whether a card is new, refurbished or used. Confirm that the listing explicitly identifies a PCIe board, states the memory capacity, and provides a credible condition description and return policy before designing around it.
What PSU does a Tesla V100 need?
NVIDIA’s 250 W maximum board-power figure tells you how much of the system power budget the accelerator can consume. It does not translate into a universal 750 W, 1,000 W or other whole-system recommendation. A workstation with one V100, a high-core-count processor and several drives has different requirements from a server with two or four V100 boards.
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Size the complete system, not just the card
- Start with the accelerator load. Count 250 W for each Tesla V100 PCIe board when planning the maximum board-power portion of the budget. Two boards therefore account for 500 W before the host platform is included.
- Add the host platform. Use the processor manufacturer’s maximum or configured package-power guidance, then account for memory, motherboard regulation losses, storage, fans, USB devices and every other PCIe card. Server boards with many DIMMs and high-speed networking can add substantially more than a basic tower configuration.
- Check the number and type of GPU power leads. The exact auxiliary-power implementation is platform- and board-specific. Follow the V100 board documentation and the server or workstation OEM manual rather than adapting an unverified cable or splitter.
- Check the chassis and PSU together. A supply may have enough nominal wattage but lack the required connectors, rail arrangement or validated support for the intended number of cards. OEM documentation should identify supported GPU combinations, risers and cable assemblies.
- Allow operating margin without hiding behind a single number. Select a supply whose rated capacity exceeds the calculated sustained system load and whose manufacturer approves the intended configuration. The correct result is a platform-specific capacity, not a number copied from the 250 W board specification.
Single- and multi-GPU planning
For one card, the 250 W board figure is a useful lower-level input, but the CPU and rest of the machine still determine the supply size. For multiple cards, add 250 W for every board and verify that the motherboard, risers, power distribution and fan controller are designed for simultaneous operation. Do not assume that because a chassis accepts two physical cards it can safely power or cool two passive accelerators.
How to cool a passive Tesla V100 PCIe
NVIDIA states that the board uses a passive heatsink and requires system airflow to operate within its thermal limits. The heatsink is bidirectional, so air may move left-to-right or right-to-left. What matters is a continuous pressure path through the fins, with unobstructed intake and exhaust openings.
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Why an ordinary quiet tower can fail
Many desktop cases rely on low-speed fans, open internal circulation and the GPU’s own fan to move air. A passive V100 has no such fan. If front-to-back pressure is weak, a cable bundle blocks the heatsink, or adjacent cards recirculate warm exhaust, the GPU can reach its slowdown threshold even though the case feels only mildly warm. A tower is suitable only when its fan locations, ducting, slot spacing and control profile have been deliberately configured for a passive data-center card.
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- Confirm which side of the card receives intake air in the selected chassis and orient the system fans to drive air through the fins in that direction.
- Keep the card’s intake and exhaust faces clear of cable bundles, drive cages and adjacent full-height cards.
- Use the server or workstation’s high-GPU-load fan profile; an automatic profile designed for an active consumer GPU may not react correctly to a passive board.
- Check that a riser, if used, preserves the intended airflow path and does not place the heatsink against a wall or another card.
- Monitor GPU and HBM temperatures during a sustained workload instead of judging cooling by idle temperature.
Can you put a Tesla V100 in a workstation?
Yes, but only when the workstation meets the same physical, electrical and thermal conditions expected by the passive PCIe board. The minimum checklist is an open, electrically x16 PCIe slot; two-slot clearance; at least 10.5 inches of usable card length; a compatible auxiliary-power connection; a PSU sized for the complete configuration; and directed airflow that the chassis manufacturer supports for a passive accelerator.
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Workstation requirements
- Slot: Verify the slot’s electrical lane connection, not just its mechanical x16 shape. Confirm that the CPU or chipset topology supports the intended slot when other devices are installed.
- Clearance: Reserve two slots and measure length with the rear bracket installed. Check front-panel, radiator and drive-cage interference.
- Power: Match the board’s required auxiliary lead to the workstation’s documented cable. Do not infer the connector from a photograph of a different V100 revision.
- Cooling: Ensure fans create a directed path through the passive heatsink and that the firmware can sustain the necessary fan speed.
- Firmware and software: Check the workstation OEM’s supported GPU list and the current driver and CUDA compatibility for the operating system you intend to use. Support status can change, especially for older accelerator generations.
When a rack server is the safer choice
A GPU-ready rack server generally makes passive-card deployment easier because its ducting, fan control, power harnesses and risers are designed around accelerator airflow. That does not make every rack chassis compatible: verify the exact model, GPU kit, slot position and supported card count. A tower can work well for a single board when its cooling design is explicit and validated, but an improvised tower conversion has more ways to fail.
PCIe Gen3 x16, bandwidth and the NVLink confusion
The Tesla V100 PCIe uses PCIe Gen3 x16. NVIDIA lists 32 GB/s for the PCIe interconnect bandwidth. That figure describes the PCIe board’s host connection; it should not be substituted with numbers from the separate NVLink V100 form factor.
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| Specification often quoted | Applies to | Correct interpretation |
|---|---|---|
| PCIe Gen3 x16 | Tesla V100 PCIe | The plug-in board interface used in a workstation or conventional PCIe server. |
| 32 GB/s PCIe interconnect bandwidth | Tesla V100 PCIe | The bandwidth figure associated with the PCIe connection. |
| 300 W maximum consumption | V100 NVLink form factor | A separate module specification; do not use it as the PCIe board’s power rating. |
| 300 GB/s interconnect figure | V100 NVLink form factor | Not the PCIe board’s 32 GB/s PCIe figure. |
When a product page mixes PCIe, SXM2 and NVLink terminology, stop and verify the exact part. An SXM2 module cannot be installed in a normal PCIe slot, and a statement about 300 W or 300 GB/s may describe the NVLink version rather than the card you are buying.
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Thermal limits and what each temperature means
Use the limits as operational guardrails, not as targets. The 80 °C value is NVIDIA’s GPU thermal-qualification temperature; it is a qualification reference rather than a claim that every workload should sit at exactly 80 °C.
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| Temperature | Component or event | Practical response |
|---|---|---|
| 80 °C | GPU thermal qualification temperature | Use as the qualification reference when evaluating the cooling design. |
| 83 °C | GPU maximum operating temperature | Investigate airflow and workload conditions before sustained operation reaches this limit. |
| 85 °C | HBM maximum operating temperature | Monitor HBM separately where the platform exposes that sensor; a safe GPU-core reading does not prove HBM is cool. |
| 87 °C | GPU slowdown temperature | The board can reduce performance to control heat. Treat repeated crossings as a cooling problem. |
| 90 °C | GPU shutdown temperature | Expect protective shutdown behavior; stop the workload and correct the airflow or ambient-temperature cause. |
Installation procedure for a workstation or server
- Power off the system, disconnect AC power and follow the chassis service procedure for electrostatic protection.
- Remove the slot covers and confirm that the chosen position has two-slot clearance and an electrically x16 connection.
- Check the card length against the measured internal clearance before inserting it. Remove or relocate obstructing drive cages or cables rather than forcing the board into place.
- Seat the card evenly in the slot and secure the rear bracket so the heatsink remains aligned with the chassis airflow path.
- Connect only the auxiliary-power cable specified for that board and host platform. Verify that the plug is fully latched and that no cable presses against the heatsink.
- Set the chassis fan policy to the OEM’s GPU or high-performance profile. Confirm that the fans ramp under load.
- Boot the system, confirm that firmware detects the accelerator, install a driver and workload stack supported by your operating system, and check that the board is enumerated on the expected PCIe bus.
- Run a controlled workload while watching GPU and HBM temperatures. Stop if temperatures approach the slowdown or shutdown thresholds, then correct airflow before production use.
Troubleshooting common failures
The system does not detect the card
Recheck that the card is fully seated, the slot is enabled and electrically x16, and the auxiliary lead is connected. Test the documented slot or riser position for that server model. A mechanically compatible slot can still be disabled or lane-limited by the platform’s slot-sharing rules.
The card appears, then slows down
Inspect intake and exhaust clearance, fan direction and fan speed under load. Look for a neighboring card recirculating hot air or a riser that places the passive heatsink against a panel. Compare both GPU and HBM readings with NVIDIA’s thresholds; lowering workload intensity without fixing airflow only masks the cause.
The PSU trips or the machine reboots under load
Recalculate the complete platform load, including every V100 board and all host components. Verify that the PSU has the required connectors and that the server’s power distribution board and risers are approved for the installed card count. Replacing the supply with a larger model is not enough if the chassis wiring or cooling system is not rated for the configuration.
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Temperatures are acceptable at idle but not during work
Idle readings do not validate a passive cooler. Use a sustained workload, observe fan response and confirm that the chassis maintains the intended left-to-right or right-to-left airflow path. Ambient room temperature and dust buildup can reduce the available margin even when the hardware has not changed.
Purchase and compatibility checklist
- Listing identifies Tesla V100 PCIe, not SXM2 or NVLink.
- Memory capacity is stated and matches your application.
- Board condition, refurbishment status and return terms are credible.
- Card measures 10.5 inches and occupies two slots in your chassis.
- Motherboard or riser provides an open, electrically x16 PCIe Gen3 slot.
- OEM documentation confirms the auxiliary-power cable and supported GPU count.
- PSU capacity is calculated for the whole machine and the required connectors are present.
- Chassis fans provide directed airflow through the passive heatsink and have a suitable high-load profile.
- Monitoring exposes GPU and HBM temperatures so both can be checked during sustained work.
The practical decision is straightforward: choose the Tesla V100 PCIe only when the host platform is built around its 250 W board load and passive cooling. A validated GPU server is usually the lower-risk path for multiple cards; a workstation is viable when its slot, power, clearance and airflow specifications explicitly support this data-center-class board.
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