Board analysis and power supply
The card has the same multi-layer PCB without the more complex backdrill process as Palit’s GeForce RTX 3060 Dual and thus also remains extremely short. The type of power supply is well-known and was only shortened a bit more for the RTX 3050 (which can be seen well in the empty spots). Here there are a total of only 4 individual phases (a maximum of 8 would be possible), which are provided by an NCP81611 from ON Semi on the rear. This is a digital PWM controller with VID interface, compatible with NVIDIA’s Open VReg specification.
These 4 phases are each implemented with the inexpensive DRMOS AOZ5311NQI from Alpha & Omega Semiconductor (55 Amps max.), which do not allow MOSFET DCR, but at least still offer a temperature protection circuit. For the more frugal GDDR6 memory from Micron in the form of four 2GB modules (D9ZBM), Palit doesn’t use a multiphase converter, but a simple step-down converter with discrete placement. A simpler dual N-channel MOSFET in the form of Sinopower’s 7342EK is also used here instead of a PowerStage behind the uP1666Q (front). The second one has simply been omitted in the RTX 3050 (empty space on the upper right under the 8-pin socket).
This simple assembly is also used for further partial voltages on the board, which by the way is completely sufficient. On the front, there is still a simple single UEFI EEPROM to discover, while the backside doesn’t show any interesting assembly variations except for the two PWM controls and some small MOSFETs.
For input smoothing one coil with 1 µH (front side) is used, behind which a shunt (back side) is placed for the 8-pin connector as well as for the PEG motherboard slot. The voltage drop of the shunt is used to measure the flowing currents. A uS5650Q from UPI is used for this (back). That’s about as exciting as it gets. The following pictures show the mentioned components once again in detail:
Cooler and disassembly
The front is dominated by two 9 cm fans with 9 rotor blades each, which act quite quietly and correspond to those on the other dual models. There are no more special features to observe from above for the time being. The cooler cover is only supported by the screw connection with the backplate.
Disassembly is therefore simple. After unscrewing the ABS backplate, the two cooler mounts on the slot bezel and the GPU cross, the cooler can also be removed completely quite easily. You just have to disconnect the fan cables and the RGB lifeline. The extremely thick, very soft pads on the memory modules and the VRM ensure that even possible manufacturing tolerances of the package of up to 0.5 mm in height can be easily compensated. Caution is certainly not the worst advisor here, also because the only four VRMs are really struggling.
We see a total of three nickel-plated 6 mm heatpipes made of copper composite material, which were soldered to the back of the heatsink above the GPU. The memory is cooled by the heatsink via the thick pads, the voltage converter heatsink sits separately. The coils are not cooled here. The two individual small pad strips for the memory’s power supply (right) are rather cosmetic here and are still attached to the large heatsink on two lugs.
On the back, you’ll find another backplate made of ABS, which doesn’t have any cooling function and only serves to look good and stabilize the cooler assembly together with the PCB.
- 1 - Intro, Unboxing, Data and Test System
- 2 - Teardown, PCB Analysis and Cooler Details
- 3 - Gaming Performance Full-HD
- 4 - Gaming Performance WQHD
- 5 - Details: Frames per Second (Curve)
- 6 - Details: Percentiles (Curve)
- 7 - Details: Frame Times (Curve)
- 8 - Details: Frame Times (Bar)
- 9 - Details: Variances (Bar)
- 10 - Power Draw of GPU & CPU and Gaming Efficiency
- 11 - Power Consumption, Transients and PSU Recommendation
- 12 - Temperatures, Clock Rate and Infrared Tests
- 13 - Fan Speed, Noise and Frequency Analysis
- 14 - Summary and Conclusion
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