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RTX 4090 Suprim X PCB breakdown notes (Patreon)

Published:
2022-10-12 23:14:26
Edited:
2023-01-19 10:02:36
Imported:
2026-06
Tags:

Content

Fuses!1x 12A fuse on PCI-e slot 12V1x 20A fuse for Vmem's 12V supply

Input filtering bulk capacitance13x 180uF 16V TH aluminum polymer28x 100uF 16V SMD tantalum polymer

Vcore Controller: MP2891 12 phasesMOSFETs: 26x MP86957 70A SPS (2 in most phases 3 in 2 phases)1.2V 500KHz 150nH (power stages only?)300A ~24W400A ~30W500A ~39W600A ~48W800A  ~78WVcore VRM bulk capacitance48x 220uF SMD aluminum polymerVcore core bulk capacitance4x 470uF SMD aluminum polymer2x 10x MLCC

Vmem Controller: MP2891 +4 phasesMOSFETs: 4x MP86957 70A SPS (1 per phase)Vmem bulk capacitance:4x 470uF SMD poly6x 220uF SMD poly

Notes:The most powerful RTX 4090 PCB I'm aware of ATM. Tons of input filtering. Output filtering might not be as good as the Strix but without oscilloscope measurements it's impossible to say if the difference is note worthy.

Comments

Jono 710

Hmm, I-N-T-E-R-E-S-T-I-N-G

crossbone

What do you think about those special anti coilwhine components MSI advertises. Do you think they will actually help?

Corey Shuman

The MSI Gaming Trio and Gaming X Trio use the exact same PCB as the Suprim X, but are instead populated with NCP303151A 50A mosfets, 18x for Vcore and still 4x for Vmem. That seems like a pretty massive cutdown, and it's interesting to see such significant differences in BOM for the same PCB.