User contributions for ASRepairs

12:5812:58, 8 November 2023 diff hist +108‎ MacBook Pro A1502 Battery not recognized repair ‎No edit summary
12:5812:58, 8 November 2023 diff hist +813‎ N MacBook Pro A1502 Battery not recognized repair ‎ Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== Problem with MacBook Pro A1502 2015-2016 that is not recognizing the battery. thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *MacBook not recognizing the battery ==Solution== First, '''try a known good battery.''' If it doesn't work, check PPBUS_G3H. If it is 12.23 V, the S..." Tag: Visual edit
12:5712:57, 8 November 2023 diff hist +90‎ MacBook Pro A1502 No green light on charger repair ‎No edit summary
12:5712:57, 8 November 2023 diff hist +971‎ N MacBook Pro A1502 No green light on charger repair ‎ Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== <nowiki>#</nowiki>incomplete thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *Green light on charger not turning on ==Solution== This problem has multiple causes: * ADAPTER_SENSE not 3 V due to bad DC in board. 16–20 V on ADAPTER_SENSE means charger voltage is leaking into..." Tag: Visual edit
12:5512:55, 8 November 2023 diff hist +79‎ MacBook Pro A1502 2015-2016 Not turning on (only 120 mA current draw) repair ‎No edit summary current
12:5512:55, 8 November 2023 diff hist +605‎ N MacBook Pro A1502 2015-2016 Not turning on (only 120 mA current draw) repair ‎ Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== <nowiki>#</nowiki>incomplete thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *Not turning on. *Pulling 120 mA from the charge port. ==Solution== Cause: * Spillage * Corrosion on keyboard backlight connector * Short to ground via keyboard backlight connector '''[https://www...." Tag: Visual edit
12:5312:53, 8 November 2023 diff hist +90‎ MacBook Pro A1502 2015-2016 Not turning on (only 20 mA current draw) repair ‎No edit summary current
12:5312:53, 8 November 2023 diff hist +469‎ N MacBook Pro A1502 2015-2016 Not turning on (only 20 mA current draw) repair ‎ Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== <nowiki>#</nowiki>incomplete thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *Not turning on. *Pulling only 20 mA from the charge port. ==Solution== With 1.1 V on PPBUS_G3H: check connection between R7186 and U7100. Also check between R7186 and its adjacent probe point." Tag: Visual edit
12:5212:52, 8 November 2023 diff hist +64‎ MacBook Pro A1502 Not turning on (power cycling 20–60 mA) repair ‎No edit summary
12:5212:52, 8 November 2023 diff hist +574‎ N MacBook Pro A1502 Not turning on (power cycling 20–60 mA) repair ‎ Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== <nowiki>#</nowiki>incomplete thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *Not turning on. *Cycling between 20 to 60 mA current draw from the power supply. ==Solution== PP5V_S0 shorted to ground via bad C6412 or C6432 capacitor, also PP5V_S3 will read shorted as it is conn..." Tag: Visual edit
12:5012:50, 8 November 2023 diff hist +90‎ MacBook Pro A1502 Not turning on (24–25 mA current draw) repair ‎No edit summary
12:5012:50, 8 November 2023 diff hist +738‎ N MacBook Pro A1502 Not turning on (24–25 mA current draw) repair ‎ Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== <nowiki>#</nowiki>incomplete thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *Not turning on. *Pulling only 24–25 mA from the charge port. ==Solution== * PM_SLP_S4_L missing for random reason, thoroughly inspect clock chip, tiny specks of corrosion next to it can kill it...." Tag: Visual edit
12:4712:47, 8 November 2023 diff hist +100‎ MacBook Pro A1502 2015-2016 Not turning on (low PPBUS G3H voltage) repair ‎No edit summary current
12:4612:46, 8 November 2023 diff hist +793‎ N MacBook Pro A1502 2015-2016 Not turning on (low PPBUS G3H voltage) repair ‎ Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== Power Failure with Low PPBUS_G3H Voltage (1.7-4V) Instead of Expected 12.56V; Potential Liquid Damage. thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *Not turning on. *Low PPBUS_G3H voltage *possible corrosion/liquid damage ==Solution== In the event of liquid damage, recomm..." Tag: Visual edit
12:4212:42, 8 November 2023 diff hist +85‎ MacBook Pro A1502 2015-2016 Trackpad and keyboard not working repair ‎No edit summary current
12:4112:41, 8 November 2023 diff hist +913‎ N MacBook Pro A1502 2015-2016 Trackpad and keyboard not working repair ‎ Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== Frequent Trackpad Cable Failures Causing Keyboard and Trackpad Dysfunction in 820-4924 Board on MacBook Pro A1502 2015-2016 thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *Keyboard not working. *Trackpad not working. ==Solution== Bad trackpad cable. This dies all the time...." Tag: Visual edit

22:2222:22, 7 November 2023 diff hist +80‎ GTX 1070 Random freezing/crashing fix, power hot plug detection fault ‎No edit summary
22:2122:21, 7 November 2023 diff hist +2,891‎ N GTX 1070 Random freezing/crashing fix, power hot plug detection fault ‎ Created page with "{{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== This guide addresses a particular freezing issue related to GTX 1070s. It is important to note that this guide is not a universal solution for all freezing problems that you may encounter, but rather specifically addresses one of them related to PCIE external 8 pin hot plug detection. It is worth bearing in mind that freezing can have various underlying causes not jus..." Tag: Visual edit
22:2122:21, 7 November 2023 diff hist +8‎ N File:1070 q33.png ‎No edit summary current
22:2122:21, 7 November 2023 diff hist +17‎ N File:1070 q33 location.png ‎No edit summary current
22:2122:21, 7 November 2023 diff hist +22‎ N File:1070 hotplug schematic.png ‎No edit summary current
22:2022:20, 7 November 2023 diff hist +35‎ N File:Gtx 1070 hot plug detection circuit.png ‎No edit summary current
22:1822:18, 7 November 2023 diff hist +107‎ Nvidia Turing (RTX 2000) GPU Diagnosing Guide ‎No edit summary
22:1822:18, 7 November 2023 diff hist +8,804‎ N Nvidia Turing (RTX 2000) GPU Diagnosing Guide ‎ Created page with "'''''This guide is relevant for most Turing-based cards ranging from 2060 to the 2080Ti. While some vendors might utilize distinct PCBs or components, the fundamental operational principles remain consistent unless explicitly stated otherwise. This guide uses a reference RTX 2080 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]!'' ==The Card Layout== File:Tur..." Tag: Visual edit
22:1722:17, 7 November 2023 diff hist +32‎ N File:2080 crystal oscillator location.jpg ‎No edit summary current
22:1722:17, 7 November 2023 diff hist +21‎ N File:2080 straps schematic.jpg ‎No edit summary current
22:1722:17, 7 November 2023 diff hist +29‎ N File:2080 straps location on board.jpg ‎No edit summary current
22:1622:16, 7 November 2023 diff hist +113‎ BIOS Problems on Turing GPUs Repair ‎No edit summary current
22:1622:16, 7 November 2023 diff hist +2,670‎ N BIOS Problems on Turing 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 info..." Tag: Visual edit
22:1622:16, 7 November 2023 diff hist +19‎ N File:2080 bios schematic.png ‎No edit summary current
22:1522:15, 7 November 2023 diff hist +9‎ N File:2080 bios.png ‎No edit summary current
22:1022:10, 7 November 2023 diff hist +87‎ PEX Rail on Turing GPUs Explained ‎No edit summary current
22:0922:09, 7 November 2023 diff hist +2,781‎ N PEX Rail on Turing GPUs Explained ‎ Created page with "PEX minor voltage rail (PEX VDD) on Turing series of GPUs explained from a repair perspective. {{Explanatory Guide}} ==The Controller Circuit== thumb|PEX rail circuit location on an RTX 2080 Reference. (Figure 1) thumb|Schematic view of the PEX rail with GS9216. (Figure 2) thumb|Schematic view of the PEX rail with NB617. (Figure 3) File:2080 pex en.png|thumb|Schemat..." Tag: Visual edit
22:0922:09, 7 November 2023 diff hist +11‎ N File:2080 pex en.png ‎No edit summary current
22:0922:09, 7 November 2023 diff hist +21‎ N File:2080 pex mp schematic.png ‎No edit summary current
22:0922:09, 7 November 2023 diff hist +25‎ N File:2080 pex GS9216 schematic.png ‎No edit summary current
22:0822:08, 7 November 2023 diff hist +17‎ N File:2080 pex on board.png ‎No edit summary current
22:0522:05, 7 November 2023 diff hist +2,603‎ N VMem Rail on Turing GPUs Explained ‎ Created page with "VMemory voltage rail (FBVDD) on Turing GPUs explained. {{Explanatory Guide}} ==The controller circuit== thumb|Vmem controller circuit on the RTX 2080 Reference. (Figure 1) thumb|UP9512P pinout and circuit on RTX 2080. (Figure 2) thumb|Vmem controller circuit for UP1666q on RTX 2080. (Figure 3) File:2080 up9512S pinout.jpg|thumb|Pinout for UP9512S. (Figure 4..." current Tag: Visual edit
22:0522:05, 7 November 2023 diff hist +12‎ N File:2080 vmem en.jpg ‎No edit summary current
22:0422:04, 7 November 2023 diff hist +18‎ N File:2080 up9529 pinout.jpg ‎No edit summary current
22:0422:04, 7 November 2023 diff hist +19‎ N File:2080 up9512S pinout.jpg ‎No edit summary current
22:0422:04, 7 November 2023 diff hist +20‎ N File:2080 up1666q circuit.jpg ‎No edit summary current
22:0322:03, 7 November 2023 diff hist +26‎ N File:2080 vmem up9512 schematic.png ‎No edit summary current
22:0322:03, 7 November 2023 diff hist +26‎ N File:2080 vmem circuit on board.jpg ‎No edit summary current
22:0122:01, 7 November 2023 diff hist +87‎ VCore Rail on Turing GPUs Explained ‎No edit summary current
22:0122:01, 7 November 2023 diff hist +2,477‎ N VCore Rail on Turing GPUs Explained ‎ Created page with "Everything you need to know about VCore on Turing GPUs from a repair perspective. {{Explanatory Guide}} ==The Controller Circuit== Most of the time, high end Turing cards (2070-2080Ti) use [https://www.sekorm.com/doc/2032865.html UP9512P] or the [https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP2886AGU/ MP2886a] 8-phase buck controllers (full datasheet is unavailable publicly). Some low end cards (suc..." Tag: Visual edit
22:0022:00, 7 November 2023 diff hist +17‎ N File:2080 vcore enable.png ‎No edit summary current
22:0022:00, 7 November 2023 diff hist +28‎ N File:2080 vcore schematic up9512s.png ‎No edit summary current
21:5921:59, 7 November 2023 diff hist +28‎ N File:2080 vcore schematic up9512p.png ‎No edit summary current
21:5921:59, 7 November 2023 diff hist +19‎ N File:2080 vcore on board.jpg ‎No edit summary current

8 November 2023

7 November 2023