Introduction and Features

The Toughpower Grand is Thermaltake’s new line of power supplies, which feature advanced circuitry design, high efficiency and modular cables with outputs up to 1,200W.

It’s been awhile since we reviewed our last Thermaltake power supply so we were excited to see a new Toughpower Grand unit show up on our doorstep recently. Thermatake’s new Grand series includes five models ranging from 650W up to 1200W. All of the Toughpower Grand series power supplies feature advanced circuitry design, high efficiency (80 Plus Gold certified), smart cable management, and come backed by Thermaltake’s 7-year warranty.

Here is what Thermaltake has to say about their new Toughpower Grand Series: "Designed to meet the highest expectations and standards of today’s extreme PC enthusiasts and system builders while pushing the limit of clean and reliable power delivery system utilizing advanced circuitry design that can only be found on Toughpower Grand series of high-efficiency power supplies. Smart cable management not only enables professional-looking system builds, but also accelerates airflow through the computer case for highly efficient heat dissipation. All of the above are achieved while enabling the Toughpower Grand power supply to deliver continuous power output even when operating in 50C environment, making it the Toughest power supply on the block."

Thermaltake Toughpower Grand 1200W PSU Key Features:

• 24/7 @ 50°C: Guaranteed to deliver 1200W continuous power
• Compliance with Intel ATX 12V v2.3 and SSI EPS 12V v2.92 standards
• 80 PLUS Gold certified: 87-92% efficiency @ 20-100% load
• Proprietary dual ball bearing 14cm fan with flower-shape blades
• 100% 105°C Japanese made electrolytic capacitors
• Double-forward switching circuitry offers low power loss and high reliability
• DC-to-DC converters provide high efficiency and stable performance
• 3oz PCB design reduces heat generation and allows greater efficiency
• Robust, dedicated +12V output has dual +12V rails (100A/1200W combined)
• FanDelayCool Technology allows fan to continue operating after shutdown
• Multi-GPU ready: comes with 8 x PCI-E 6+2 pin connectors
• Fixed and modular smart cable management system
• Universal AC input (90~264V) with Active PFC
• Over-current, over-power, over-voltage, under-power and short circuit protection
• Safety/EMI approvals: CE,TUV,FCC, UL, CUL, GOST and BSMI certified
• 7-Year warranty

Testing Methodology

Establishing an accurate load is critical to testing and evaluating a PC power supply. PCPerspective’s power supply test bench can place a precise 2,000 watt DC load on the PSU under test. Each power supply is tested under controlled, real-world conditions up to its maximum rated load (at 40ºC), using both 115 VAC and 240 VAC line voltage. Our current suite of tests includes:

• DC Load Regulation
• DC Line Regulation
• DC Cross-load (unbalanced load)
• AC Ripple and Noise
• Power Factor
• Efficiency
• Differential Temperature
• Noise

The Thermaltake Toughpower Grand 1200W power supply was evaluated on both features and performance. A full range of equipment was used to test the power supply under controlled load conditions.

• (2) CSI3710A Programmable DC load (+3.3V and +5V outputs)
• (4) CSI3711A Programmable DC load (+12V1, +12V2, +12V3, and +12V4)
• (2) 200W Precision resistor load bank (+12V5 and +12V6)
• Switchable precision resistor load bank (-12V and +5VSB)
• Extech MultiMaster MM570 digital multimeter (Accuracy ±0.02%)
• Extech 380803 Power Analyzer (Accuracy ±0.5% of full scale)
• DS1M12 "StingRay" digital oscilloscope (20M S/s with 12 Bit ADC)
• Powerstat Variable Autotransformer, 1.4 KVA, 0-140 VAC
• Extech Model 407738 digital sound level meter (Accuracy ±1.5 dB)
• Custom PC60 enclosure to simulate real-world operating conditions

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