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- 19:27, 7 November 2023 ASRepairs talk contribs created page 1.8V Rail on Polaris GPUs Explained (Created page with "''''''In this guide, we will explore the 1.8V rail on Polaris cards, how it's created, its usage, and common problems associated with it.''''' {{Explanatory Guide}} ==The Controller Circuit== Polaris cards typically use a [https://cal.equipment/doc/_Datasheets/_DC_DC/gs7103.pdf GS7103-A] or a similar Low Drop Out (LDO) regulator to control the 1.8V rail. The output voltage is adjusted through the FB pin using a voltage divider (please refer to the datasheet or Figure 2)...") Tag: Visual edit