Board design: layout and components
Gainward relies on a simple 5+2 phase design for the RTX 2060 Super Ghost. On the back of the board, on the NCP4591 from ON Semi, there is a simple monitoring chip for voltages and currents (violet), an ARM processor from Holtek (yellow) for various controller and control tasks, and the PWM controller for the CPU phases (VDDC, green ). This is an uP9512R from UPI that could drive up to 8 phases.
On the fron side we see the input filtering on the right and the shunt (pink) below the 8-pin power supply socket. Below this is the power supply for the memory (MVDD, light blue), the two phases of which are generated by an NCP81278. The voltage converters are discreetly constructed, so that one SM4377 for the high side and one SM4503 for the low-side can be found per phase. All MOSFETS come from ON Semi and are more likely to be located in the low-budget sector.
The 5 phases for the GPU (VDDC, yellow) are realized with simple PowerStages, in which high- and low-side are combined in a shared package. This saves space above all. The NCP302150 used are also more conveniently located in the favorable range, but are completely sufficient. One of these phases is fed directly from the motherboard slot, the other four via the 8-pin PCIe connector at the top. The remaining partial voltages are generated by simpler voltage converters.
The spools for smoothing are sufficiently sized at 220 nH (GPU) and 470 nH (memory), a simple inductor DCR is used for telemetry. This makes the board functional and sufficiently equipped, but does not use a high-end component. For what?
Cooler Design: Simple Double Fan Cooler
The aluminum heat sink with the horizontally aligned slats sits on a large base plate without extra GPU heatsink. Here, GPU, memory and voltage converters are cooled in equal measure. For better distribution of waste heat, Gainward relies on two integrated 6 mm heatpipes made of unnickelplated copper composite material. For the necessary air flow, two 8.5 cm fans with nine rotor blades are used. Here, too, of course, expediency takes over beauty
Fan | 2x 8.5 cm rotor diameter 9 rotor blades High throughput |
Cooling fins | Horizontally |
GPU Cooling | Common base plate |
Memory cooling | Common base plate |
VRM cooling | Common base plate |
Pads | 1 mm (memory, VRM) |
Fan operation | No passive mode 1020 rpm minimum speed (29%) |
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