When purchasing a new system or cluster, preparing the power requirements is integral. Power draw from the systems is key in addition to ensuring there is enough power available from the power source/circuit to fulfill the wattage needed.
System Power
All Exxact Systems feature auto-switching power supplies that can take 120V-240V. Most systems use the default power cables are C13 → Nema 5-15 or C13 → C14.
C13 → C14 C13 → NEMA 5-15
Electrical Circuits
Here is a chart of the most common circuits below.
Power that can be provided by each circuit. (Be Aware: there can be multiple outlets for a single circuit)
120V 20A NEMA 5-20 and L5-20 Electrical Outlets - up to 1920W
120V 30A NEMA L5-30 Electrical Outlets - up to 2880W
208V 20A NEMA L6-20 Electrical Outlets - up to 3328W
208V 30A NEMA L6-30 Electrical Outlets - up to 4992W
3-Phase 208V NEMA L21-20 Electrical Outlets - up to 5700W
3-Phase 208V CS 8365 Electrical Outlets - up to 14400W
Calculating Power Draw
In order to determine what circuit you need, you would first need to determine the amount of power draw coming from a system or cluster. Most components power consumption can be found online, typically from the manufacturer's site.
For example, we will examine the power draw for the:
Spectrum TXN003-0128N (Deep Learning DevBox)
http://exxactcorp.com/index.php/solution/solu_detail/225
Components that requires power listed below:
| Parts Listing (Spectrum TXN003-0128N , Deep Learning DevBox (64GB DDR4, 4x Titan X Pascal, 256GB SSD, 4TB HDD) | ||
| Description | Quantity | Power Draw |
| X99-E WS Intel X99 Server Workstation Motherboard | 1 | 125W |
| INTEL 6 CORE I7-5930K 3.5GHZ 15M | 1 | 140W |
| CORSAIR Hydro Series H60 | 1 | ~5-10W |
| 16GB DDR4 2133 MHz Desktop Memory Module (64GB system memory) | 4 | ~5-10W per |
| 256GB 2.5 SATA III Internal Solid State Drive (SSD) | 1 | <1W |
| 4TB 7200RPM 64MB CACHE 3.5IN SATA Enterprise Class HDD | 1 | ~5-10W per |
| NVIDIA GeForce Titan X Pascal 12GB GDDR5X | 4 | 1000W |
| Total Power Requirement | ~1325W | |