User contributions for ASRepairs

20:0920:09, 7 November 2023 diff hist +3,167‎ N VDDCI Rail on Polaris GPUs Explained ‎ Created page with "On this page you'll find information about VDDCI voltage rail on Polaris GPUs. How it works, what it is used for, and common issues with it. {{Explanatory Guide}} ==The Controller Circuit== The creation of the VDDCI voltage rail depends on the VCore PWM controller used. In some instances, VDDCI is generated by the same VCore controller, such as the [https://media.digikey.com/pdf/Data%20Sheets/ON%20Semiconductor%20PDFs/NCP81022.pdf NCP81022] or [https://pdf1.alldatasheet...." Tag: Visual edit
20:0520:05, 7 November 2023 diff hist +16‎ N File:Polaris vddci en.jpg ‎No edit summary current
20:0520:05, 7 November 2023 diff hist +23‎ N File:Polaris VDDCI schematic.jpg ‎No edit summary current
20:0520:05, 7 November 2023 diff hist +28‎ N File:Polaris vddci board location.jpg ‎No edit summary current
19:4119:41, 7 November 2023 diff hist +101‎ VMem Rail on Polaris GPUs Explained ‎No edit summary current
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

7 November 2023