A 90-Day Dense-GPU Trial

On March 4, 2024, two Conture Ventures DGX A100 systems arrived for a 90-day operating trial. They were not ordinary rack additions. Each system occupied 6U, could draw as much as 6.5kW, and arrived with a requirement that mattered more than a benchmark: Helixrack had to prove it could operate dense equipment predictably.

The facility had 16 production racks by February 2024. That rack count supplied context, not an assurance that any open 6U position could accept a high-density system. Space, electrical capacity, cooling path, breaker loading, cable routing, and recoverability had to be reviewed together.

Acceptance before installation

The draft acceptance plan begins with evidence. The final article will identify the two systems from receiving and serial records, document their condition, and reconcile the installed configuration with NVIDIA’s period description of the DGX A100 640GB system.

Helixrack’s canonical installation used dual 40A, 208V A/B feeds for each system. Each side was designed so that either A or B could carry the full system load. That configuration must be supported by the signed electrical one-line, breaker and conductor records, PDU ratings, licensed-work documentation, and measured load. A label on a receptacle is not proof of usable capacity.

The cooling arrangement was equally specific. Both 6U systems sat at conditioned-air supply, with hot exhaust directed toward the return. The final trial record should include inlet and exhaust measurements, room conditions, sensor placement, sampling intervals, and alert thresholds. It should not turn an equipment maximum into a claim that each system continuously consumed 6.5kW.

What the trial was designed to answer

The trial was intended to answer operational questions, not manufacture a general performance claim:

• Could the power path sustain the measured load while preserving the A/B design?
• Did inlet temperatures stay within the approved operating band through normal facility changes?
• Did the exhaust path avoid recirculation into neighboring equipment?
• Would power, temperature, and reachability alerts arrive early enough for a useful response?
• Could maintenance and incident decisions be recorded consistently for both Helixrack and Conture?

The canonical monitoring configuration included reachability checks every 30 seconds. The publishable version must distinguish a ping from application availability and from service uptime. It must also disclose maintenance exclusions, sensor gaps, and who could acknowledge or close an alert.

Governance mattered because the systems belonged to another organization. The trial needed named owners, access boundaries, escalation paths, change approval, and a shared definition of an incident. NIST released Cybersecurity Framework 2.0 one week before the installation; it is useful period context for governance, but it does not prove that Helixrack formally implemented the framework.

A bounded commitment

This was a 90-day trial, not a declaration that Helixrack could accept any dense system at any rack position. The operating commitment was bounded to two documented DGX A100s, their assigned feeds, their cooling orientation, an agreed monitoring plan, and a defined review period.

The result belongs in a separate end-of-trial report. Keeping setup and outcome apart is important: an acceptance plan records what the team intended to test; logs and event records show what actually happened. This article will remain a draft until both the technical artifacts and Conture’s publication consent are in the source ledger.