#REDIRECT [[Nvidia Turing (RTX 2000) GPU Diagnosing Guide]]
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#REDIRECT [[Nvidia Pascal (GTX 1000) GPU Diagnosing Guide]]
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#REDIRECT [[AMD Polaris (RX 400/500) GPU Diagnosing Guide]]
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You'll need either a CPU with an integrated GPU (any Intel CPU since Sandy Bridge, or an AMD APU) or a secondary video card
Index should be 1 if you are using integrated graphics or a dedicated GPU with a CPU that has no integrated.
4 KB (704 words) - 15:28, 30 March 2024
''Have any questions? Need help with a specific GPU problem? Post to [https://www.reddit.com/r/GPURepair/ /r/GPURepair]!''
...o output, one of these factors may be at play: faulty memory, BIOS issues, GPU chip problems, or in some cases, strap-related issues.
10 KB (1,618 words) - 10:23, 16 March 2024
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Have any questions or need assistance with a specific GPU problem? Feel free to post on [https://www.reddit.com/r/GPURepair /r/GPURep
...may be at play, including faulty memory, BIOS, PERSTB, Crystal oscillator, GPU chip, or strap issues. Also, if the HDMI port displays a black screen, try
9 KB (1,457 words) - 10:24, 16 March 2024
''Have any questions? Need help with a specific GPU problem? Post to [https://www.reddit.com/r/GPURepair /r/GPURepair]!''
...ng is present but still no video out? You either have faulty Memory, Bios, GPU chip itself, or in some cases a problem with straps.
9 KB (1,463 words) - 10:22, 16 March 2024
== Disabling the dedicated GPU ==
Here is how you can disable the dedicated GPU on an Acer Aspire E5-571G with Compal LA-B991P board.
951 bytes (159 words) - 19:49, 8 January 2024
When the discrete GPU fails on this laptop, it's easier to just disable it instead of replacing t
*Dead GPU
738 bytes (113 words) - 18:52, 8 January 2024
Have any questions or need assistance with a specific GPU problem? Feel free to post on [https://www.reddit.com/r/GPURepair /r/GPURep
...may be at play, including faulty memory, BIOS, PERSTB, Crystal oscillator, GPU chip, or strap issues. Also, if the HDMI port displays a black screen, try
9 KB (1,546 words) - 11:43, 24 March 2024
== Disabling the dedicated GPU ==
Here is how you can disable the dedicated GPU on an Acer Aspire E5-571G with Compal LA-B991P board.
951 bytes (159 words) - 19:49, 8 January 2024
#REDIRECT [[Nvidia Turing (RTX 2000) GPU Diagnosing Guide]]
59 bytes (7 words) - 10:22, 16 March 2024
#REDIRECT [[Nvidia Pascal (GTX 1000) GPU Diagnosing Guide]]
59 bytes (7 words) - 10:23, 16 March 2024
#REDIRECT [[AMD Polaris (RX 400/500) GPU Diagnosing Guide]]
59 bytes (7 words) - 10:24, 16 March 2024
Bad GPU, solved with GPU replacement.
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Bad GPU, solved with GPU replacement.
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|Affects parts=Whole board, GPU core
...sue with GTX 1080Ti showing no display, no fan spin, and no heating on the GPU core. This guide is relevant for issues with 1.8V rail only. If you measure
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When the discrete GPU fails on this laptop, it's easier to just disable it instead of replacing t
*Dead GPU
738 bytes (113 words) - 18:52, 8 January 2024
...e UNDER 1Ohm (0.3-0.8) then you most likely have a direct 12V short to CPU/GPU. On this board this situation is always a no fix.
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...e UNDER 1Ohm (0.3-0.8) then you most likely have a direct 12V short to CPU/GPU. On this board this situation is always a no fix.
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...e UNDER 1 Ω (0.3–0.8) then you most likely have a direct 12 V short to CPU/GPU. On this board this situation is always a no fix.
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...e UNDER 1 Ω (0.3–0.8) then you most likely have a direct 12 V short to CPU/GPU. On this board this situation is always a no fix.
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***U9850 is what the dedicated GPU and the CPU's integrated GPU go to before it goes to the screen.
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*** U9850 is what the dedicated GPU and the CPU's integrated GPU go to before it goes to the screen.
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...yPort mux, U9850. U9850 is what the dedicated GPU and the CPU's integrated GPU go to before it goes to the screen.
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...raight to the GPU core so if it's non of those then it's highly likely the GPU itself is shorted.'''
...asuring the resistance of each. [[AMD Polaris GPU Diagnosing Guide|Polaris GPU Diagnosing Guide]] here you can find points to measure from
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...under 1 Ω (0.3–0.8Ω) then you most likely have a direct 12 V short to CPU/GPU. On this board this situation is always a no-fix.
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...suring the resistance of each. [[Nvidia Pascal GPU Diagnosing Guide|Pascal GPU Diagnosing Guide]] here you can find points to measure from
...hen a [[Transistors - Repair Basics|MOSFET]] is likely shorting 12V to the GPU then to GND.
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Markings on the schematic and board could differ from GPU model to another but the circuit is almost always the same.
On Pascal family of GPUs, 1.8V is used to power low level logic in the GPU core itself and in most situations the BIOS chip as well
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Markings on the schematic and board could differ from GPU model to another but the circuit is almost always the same.
...wer the GPU core. Switching 12V to 0.7V to 1V depending on the load on the GPU.
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...resistance of each. [[AMD Navi (RX 5000 series) GPU Diagnosing Guide|Navi GPU Diagnosing Guide]] here you can find points to measure from
...hen a [[Transistors - Repair Basics|MOSFET]] is likely shorting 12V to the GPU then to GND.
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...suring the resistance of each. [[Nvidia Turing GPU Diagnosing Guide|Turing GPU Diagnosing Guide]] here you can find points to measure from
...hen a [[Transistors - Repair Basics|MOSFET]] is likely shorting 12V to the GPU then to GND.
2 KB (368 words) - 10:18, 16 March 2024
Markings on the schematic and board could differ from GPU model to another but the circuit is almost always the same.
...your short. Typically speaking for Nvidia cards, the "PEX" portion of the GPU is in the bottom right corner, and under a thermal camera a shorted PEX rai
3 KB (485 words) - 16:47, 7 November 2023
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
Markings on the schematic and board could differ from GPU model to another but the circuit is almost always the same. [https://eu.mou
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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
Markings on the schematic and board could differ from GPU model to another but the circuit is almost always the same. [https://eu.mou
3 KB (452 words) - 17:35, 7 November 2023
Markings on the schematic and board could differ from GPU model to another but the circuit is almost always the same.
...your short. Typically speaking for Nvidia cards, the "PEX" portion of the GPU is in the bottom right corner, and under a thermal camera a shorted PEX rai
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While markings on the schematic and board may vary from one GPU model to another, the circuit design remains mostly consistent.
...1.8V rail is primarily used to power low-level logic components within the GPU core, as well as straps and clock.
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While the specific markings on the schematic and board may vary between GPU models, the core circuitry remains quite consistent.
...o power the GPU core. Switching 12V to 0.7-1V depending on the load on the GPU.
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|Affects parts=GPU Core
*GPU getting hot.
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*"Dead" GPU, not turning on
*GPU does not get hot
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While the markings on the schematic and board may vary between GPU models, the circuit design is typically consistent.
The Display Rail, as the name implies, powers the display components of the GPU, as shown in Figure 4.
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...CB) not being detected while the fans are spinning. This problem makes the GPU invisible to the rest of the system meaning not detected anywhere (MATS, Wi
...cuits - Repair Basics|shorts]] on any voltage rail, follow [[Nvidia Pascal GPU Diagnosing Guide|this guide]] if you're unsure how.
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It can be a bad GPU inside the CPU, which we have no solution for.
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...ar to step down 12V to 5V that is used to power different ICs found on the GPU.
Markings on the board and schematic may differ from one GPU vendor to another, however, the circuit is almost always the same.
3 KB (506 words) - 11:39, 16 March 2024
It can be a bad GPU inside the CPU, which we have no solution for.
882 bytes (148 words) - 19:11, 30 October 2023
''Have any questions? Need help with a specific GPU problem? Post to [https://www.reddit.com/r/GPURepair /r/GPURepair]!''
...ng is present but still no video out? You either have faulty Memory, Bios, GPU chip itself, or in some cases a problem with straps.
9 KB (1,463 words) - 10:22, 16 March 2024
Please note that while markings on the schematic and board may vary among GPU models, the fundamental circuit design remains largely consistent.
A VDDCI measurement of less than 5 Ohms most likely indicates a dead GPU core. There is a chance that a capacitor could be the source of the issue.
3 KB (535 words) - 20:09, 7 November 2023
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
Markings on the schematic and board could differ from GPU model to another but the circuit is almost always the same. [https://eu.mou
3 KB (532 words) - 20:24, 7 November 2023
Have any questions or need assistance with a specific GPU problem? Feel free to post on [https://www.reddit.com/r/GPURepair /r/GPURep
...may be at play, including faulty memory, BIOS, PERSTB, Crystal oscillator, GPU chip, or strap issues. Also, if the HDMI port displays a black screen, try
9 KB (1,457 words) - 10:24, 16 March 2024
Have any questions or need assistance with a specific GPU problem? Feel free to post on [https://www.reddit.com/r/GPURepair /r/GPURep
...may be at play, including faulty memory, BIOS, PERSTB, Crystal oscillator, GPU chip, or strap issues. Also, if the HDMI port displays a black screen, try
9 KB (1,546 words) - 11:43, 24 March 2024
...ouchbar replacement, the issue is likely related to the T2 chip's internal GPU and cannot be repaired without replacing the system board, or replacing the
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* Bad GPU inside the CPU.
1 KB (192 words) - 17:57, 8 November 2023
''Have any questions? Need help with a specific GPU problem? Post to [https://www.reddit.com/r/GPURepair/ /r/GPURepair]!''
...o output, one of these factors may be at play: faulty memory, BIOS issues, GPU chip problems, or in some cases, strap-related issues.
10 KB (1,618 words) - 10:23, 16 March 2024
...ouchbar replacement, the issue is likely related to the T2 chip's internal GPU and cannot be repaired without replacing the system board, or replacing the
1 KB (219 words) - 15:28, 29 October 2023
You'll need either a CPU with an integrated GPU (any Intel CPU since Sandy Bridge, or an AMD APU) or a secondary video card
Index should be 1 if you are using integrated graphics or a dedicated GPU with a CPU that has no integrated.
4 KB (704 words) - 15:28, 30 March 2024
* Start by [[Nvidia Pascal (GTX 1000) GPU Diagnosing Guide|measuring the resistance of the 12V lanes]] (12V_BUS, 12V_
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Markings on the schematic and board could differ from GPU model to another but the circuit is almost always the same.
2 KB (415 words) - 16:44, 7 November 2023
...n worth ordering a replacement part, or if the dead dual mosfet killed the GPU as well while it died.
2 KB (361 words) - 07:53, 7 February 2024
Markings on the board and schematic may differ from one GPU vendor to another, however, the circuit is almost always the same.
2 KB (456 words) - 21:55, 7 November 2023
Markings on the schematic and board could differ from GPU model to another but the circuit is almost always the same.
3 KB (427 words) - 22:01, 7 November 2023
