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7 November 2023
- 19:4119:41, 7 November 2023 diff hist +2,929 N VMem Rail on Polaris GPUs Explained Created page with "'''''In this page, we'll delve into the VMem Rail on Polaris series graphics cards, exploring how it operates, its usage, and common problems.''''' {{Explanatory Guide}} ==The Controller Circuit== VMem refers to the voltage supplied to the memory chips on the graphics card. The controller for VMem is often the [http://www.gstekic.com/pdf/GS7256.pdf GS7256]. In some cases, the [https://pdf1.alldatasheet.pl/datasheet-pdf/view/1113871/UPI/UP1666Q.html UP1666Q] is used (foun..." Tag: Visual edit
- 19:3919:39, 7 November 2023 diff hist +2 N File:Polaris vmem en.jpg No edit summary current
- 19:3819:38, 7 November 2023 diff hist +22 N File:Polaris vmem schematic.jpg No edit summary current
- 19:3819:38, 7 November 2023 diff hist +18 N File:Polaris vmem board.jpg No edit summary current
- 19:3519:35, 7 November 2023 diff hist +101 Display Rail on Polaris GPUs Explained No edit summary current
- 19:3519:35, 7 November 2023 diff hist +3,372 N Display Rail on Polaris GPUs Explained Created page with "'''''In this section, we will discuss the Display Rail on Polaris GPUs, including its controller circuit, usage, and common issues.''''' {{Explanatory Guide}} ==The Controller Circuit== Often referred to as the 0.8V rail, the Display Rail is typically controlled by either the [https://datasheet.lcsc.com/szlcsc/2005191033_GSTEK-Green-Solution-Technology-GS9238-ATQ-R_C532950.pdf GS9238] or the [https://www.icware.ru/pdf/0004112.pdf APW8713] step-down voltage converters. Th..." Tag: Visual edit
- 19:3119:31, 7 November 2023 diff hist +18 N File:Polaris 0.8v usage.jpg No edit summary current
- 19:3119:31, 7 November 2023 diff hist +25 N File:Polaris 0.8v en schematic.jpg No edit summary current
- 19:3019:30, 7 November 2023 diff hist +22 N File:Polaris 0.8v schematic.jpg No edit summary current
- 19:3019:30, 7 November 2023 diff hist +18 N File:Polaris 0.8v board.jpg No edit summary current
- 19:2819:28, 7 November 2023 diff hist +101 1.8V Rail on Polaris GPUs Explained No edit summary current
- 19:2719:27, 7 November 2023 diff hist +2,587 N 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
- 19:2419:24, 7 November 2023 diff hist +19 N File:1.8v enable polaris.jpg No edit summary current
- 19:2419:24, 7 November 2023 diff hist +33 N File:Polaris 1.8v controller schematic.jpg No edit summary current
- 19:2319:23, 7 November 2023 diff hist +18 N File:Polaris 1.8v board.jpg No edit summary current
- 19:2219:22, 7 November 2023 diff hist +8 Short on 12V or 3.3V rail on Polaris (RX 400/500) GPUs Repair No edit summary
- 19:2119:21, 7 November 2023 diff hist +99 5V Rail on Polaris GPUs Explained No edit summary current
- 19:2019:20, 7 November 2023 diff hist +1,710 N 5V Rail on Polaris GPUs Explained Created page with "''''''In this guide, we will explore the 5V rail on Polaris cards, its functioning, utilization, potential issues, and how to resolve them.''''' {{Explanatory Guide}} == The Controller Circuit == Polaris cards typically use a straightforward Low Drop Out (LDO) regulator to generate 5V from the 12V_BUS supply. While various manufacturers may use different LDOs, the reference one is "[https://www.onsemi.com/pdf/datasheet/mc78m00-d.pdf MC78M05CDT]," featuring three pins: V..." Tag: Visual edit
- 19:1619:16, 7 November 2023 diff hist +20 N File:Polaris 5v schematic.jpg No edit summary current
- 19:1119:11, 7 November 2023 diff hist +134 Short on 12V or 3.3V rail on Polaris (RX 400/500) GPUs Repair No edit summary
- 19:1019:10, 7 November 2023 diff hist +2,854 N Short on 12V or 3.3V rail on Polaris (RX 400/500) GPUs Repair Created page with "{{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== When the card is not turning on at all, causes the entire computer not to turn on. Caused by a shorted component on 12V or 3.3V rail. This page will show where shorts might occur on a Polaris card and how to repair it. thumb|RX 480 reference. 12V_BUS possible shorts. (Figure 1) ==Symptoms== * Sub 100 Ω on either 12V_BUS, 12V_EXT,..." Tag: Visual edit
- 19:1019:10, 7 November 2023 diff hist +24 N File:Ref 480 3.3v shorts back.jpg No edit summary current
- 19:1019:10, 7 November 2023 diff hist +25 N File:Ref 480 3.3v shorts front.jpg No edit summary current
- 19:0919:09, 7 November 2023 diff hist +6 N File:Ref 480 12vext shorts front.jpg No edit summary current
- 19:0819:08, 7 November 2023 diff hist +26 N File:Ref 480 12vbus shorts back.jpg No edit summary current
- 19:0819:08, 7 November 2023 diff hist +22 N File:Polaris 12v bus shorts.jpg No edit summary current
- 19:0519:05, 7 November 2023 diff hist +35 Short on 12V or 3.3V rail on Pascal (GTX 1000) GPUs Repair No edit summary Tag: Visual edit
- 19:0119:01, 7 November 2023 diff hist +20 N File:480 pcb labeled back.jpg No edit summary current
- 19:0019:00, 7 November 2023 diff hist +21 N File:480 pcb labeled front.jpg No edit summary current
- 17:5717:57, 7 November 2023 diff hist +119 Nvidia Pascal (GTX 1000) GPU Diagnosing Guide No edit summary
- 17:5617:56, 7 November 2023 diff hist +8,345 N Nvidia Pascal (GTX 1000) GPU Diagnosing Guide Created page with "'''''Note: This guide applies to most Pascal-based graphics cards, ranging from the GTX 1060 to the 1080 Ti. While some vendors may use different PCBs or components, the general operational principles remain the same unless specified. For the purpose of this guide, we will be using a reference GTX 1080 as an example.''''' {{Explanatory Guide}} ''Have any questions? Need help with a specific GPU problem? Post to [https://www.reddit.com/r/GPURepair/ /r/GPURepair]!'' ==T..." Tag: Visual edit
- 17:5617:56, 7 November 2023 diff hist +25 N File:Pascal crystal oscillator .jpg No edit summary current
- 17:5517:55, 7 November 2023 diff hist +25 N File:Straps schematic gtx 1080.jpg No edit summary current
- 17:5517:55, 7 November 2023 diff hist +20 N File:Straps location 1080.jpg No edit summary current
- 17:4117:41, 7 November 2023 diff hist +44 N Repair Basics - Short Circuits ASRepairs moved page Repair Basics - Short Circuits to Short Circuits - Repair Basics current Tag: New redirect
- 17:4117:41, 7 November 2023 diff hist 0 m Short Circuits - Repair Basics ASRepairs moved page Repair Basics - Short Circuits to Short Circuits - Repair Basics
- 17:3517:35, 7 November 2023 diff hist +149 BIOS Problems on Pascal GPUs Repair No edit summary current
- 17:3417:34, 7 November 2023 diff hist +2,755 N BIOS Problems on Pascal GPUs Repair Created page with " {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== If all hardware components on the card are verified to be in good condition and all required voltages are present, but the computer fails to detect the card, it often indicates a BIOS-related issue. The BIOS circuit operates as follows: During the initialization process, the GPU core pulls pin 1 (CS) low, which activates the BIOS chip. Subsequently, it reads the inf..." Tag: Visual edit: Switched
- 17:3317:33, 7 November 2023 diff hist +21 N File:Pascal Bios schematic.png No edit summary current
- 17:3317:33, 7 November 2023 diff hist +17 N File:Pascal Bios board.jpg No edit summary current
- 16:5716:57, 7 November 2023 diff hist +78 Nvidia GPU Memory Testing Guide No edit summary
- 16:5716:57, 7 November 2023 diff hist +27 Property:Explanatory Guide Type No edit summary
- 16:5616:56, 7 November 2023 diff hist +3,991 N Nvidia GPU Memory Testing Guide Created page with "So, your card has all voltages and you have verified that the bios circuit is working as it should but you still have no output from the card. Or there is output but you have artifacts, crashing under load, abnormal behavior etc. Well, you probably have a faulty memory chip and you've come to the right place. -Replacing memory chips is a difficult procedure requiring BGA soldering experience and the proper equipment. If you do not have the tools or the experience, you s..." Tag: Visual edit
- 16:5616:56, 7 November 2023 diff hist +19 N File:2060 memory example.jpg No edit summary current
- 16:5516:55, 7 November 2023 diff hist +12 N File:Mats example.jpg No edit summary current
- 16:5516:55, 7 November 2023 diff hist +29 N File:Nvidia memory labeling pascal.jpg No edit summary current
- 16:4716:47, 7 November 2023 diff hist +99 PEX Rail on Pascal GPUs Explained No edit summary current
- 16:4616:46, 7 November 2023 diff hist +2,599 N PEX Rail on Pascal GPUs Explained Created page with "This page talks about the PEX rail on Pascal series of GPUs, how it works, what it's used for, and common problems with it.{{Explanatory Guide}} ==The Controller Circuit== thumb|PEX rail location (Figure 1)|link=https://repair.wiki/w/File:Pex_rail_location_on_pascal.jpgthumb|PEX schematic (Figure 2)|link=https://repair.wiki/w/File:Pex_schematic_pascal.jpgFile:PEX rail usage on Pascal GPUs.jpg|th..." Tag: Visual edit
- 16:4616:46, 7 November 2023 diff hist +29 N File:PEX rail usage on Pascal GPUs.jpg No edit summary current
- 16:4616:46, 7 November 2023 diff hist +20 N File:Pex schematic pascal.jpg No edit summary current
