RTX 3090 Ti PCB’ design supports next-gen RTX 40 “Ada” AD102 GPUs
It was previously reported that the GA102 may be pin-compatible with the next-generation AD102 based on the Ada Lovelace architecture, and Nvidia partners could utilize the custom GA102 600W BIOS to prepare a thermal solution for the GeForce RTX 4080/4090 series. This means that the development work of the existing GeForce RTX 3090 Ti can be used, saving a lot of development work and reducing costs for the new generation of flagships.
Source: TechPowerUP/@ghost_motley
According to VideoCardz, at present, in the PCB reference designs of GeForce RTX 3090 Ti such as EVGA, MSI, and Zotac, there are vacancies for MOSFET, VRM, and even the new 12+4Pin 12VHPWR power supply interface to varying degrees. Obviously, the GA102 GPU with a TDP of 450W cannot be used. The same thing happens even with Nvidia’s own custom PCB for the GeForce RTX 3090 Ti Founders Edition.
The situation of MSI’s RTX 3090 Ti SUPRIM X is slightly different, only the position of a 12VHPWR power supply interface is reserved. However, after analysis, it is found that the 12VHPWR power supply interface currently set to 450W can be modified through the PJP1 jumper to become 600W. However, the general GeForce RTX 3090 Ti does not have this jumper, and needs to be equipped with a power supply with a 600W level 12VHPWR power supply interface, or use four 8Pin external power supplies. At this stage, there are not many power supplies that can provide support.
The situation of MSI’s RTX 3090 Ti SUPRIM X is slightly different, only the position of a 12VHPWR power supply interface is reserved. However, after analysis, it is found that the 12VHPWR power supply interface currently set to 450W can be modified through the PJP1 jumper to become 600W. However, the general GeForce RTX 3090 Ti does not have this jumper, and needs to be equipped with a power supply with a 600W level 12VHPWR power supply interface, or use four 8Pin external power supplies. At this stage, there are not many power supplies that can provide support.
MSI RTX 3090 Ti SUPRIM X, Source: Igor’sLAB
It is reported that GeForce RTX 40 series high-end graphics cards will be equipped with 12VHPWR power supply ports of 600W specification. It is believed that some customized models that pursue extreme performance will have two 12VHPWR power supply ports. There is still doubt about the idea of simplifying the development process by taking advantage of the compatibility between the GeForce RTX 3090 Ti’s PCB reference design and the AD102-equipped one. It is understood that the next generation of products will have a new PCB reference design to meet the power supply requirements of high-end models above 600W.
