The computer turns on but there is no display.
After verifying the monitor and cable, the graphics card's PCIe slot, additional power inputs, different output ports, and behavior in another system are compared.
GPU, VRAM, Power, and Video Output Review
Graphics Card Troubleshooting and GPU-VRAM Technical Testing in Beylikdüzü
Graphics card malfunction in Beylikdüzü The service focuses on analyzing symptoms such as no display, lines or color distortion on the screen, artifacts, crashes upon driver loading, black screen during gameplay, shutdowns under load, high temperature, and fan behavior from the perspective of the GPU, VRAM, power circuit, video output, and software.
This page is not for BGA reballing or general computer repair. First, it's verified whether the graphics card is actually faulty; different areas of expertise such as BGA, motherboard, or case airflow are only referred to the relevant page when necessary.
It is not showing an image.
The PCIe connector, power input, output port, and system boot port are separated.
An artifact is being created.
The GPU, VRAM, temperature, driver, and display cable are compared.
The game crashes when it opens.
The PSU's power circuit is monitored for stability under temperature and load.
The fan is malfunctioning.
The fan motor, fan control, sensor, and cooler behavior are examined.
FPS is dropping.
Frequency, power limit, hotspot, memory temperature, and software are all monitored.
Graphics Card Specific Symptoms
What behaviors suggest a GPU or VRAM failure?
The same symptom can also be caused by a problem with the monitor, video cable, RAM, PSU, motherboard PCIe slot , or drivers. Peripheral components should be disassembled before any work is done on the graphics card.
Lines, squares, or color distortion on the screen
The glitches seen from the start screen onwards may strengthen the possibility of a hardware issue. If it only occurs during gameplay, temperature, driver, and load behavior will be examined separately.
Black screen when the game opens.
When GPU load increases, PSU protection, PCIe power cable, VRM, temperature, or driver instability can cause a black screen.
The system crashes when the driver is installed.
a card running on the basic display driver crashes when the manufacturer's driver is installed, GPU acceleration, VRAM, or power management will be evaluated.
It restarts under load.
The PSU capacity, PCIe power connector, the card's instantaneous power demand, temperature, and motherboard PCIe behavior should all be checked together.
FPS drops and frequency decreases.
Even if the GPU core temperature appears normal, hotspots, VRAM temperature, power limits, or fan behavior can cause a frequency drop.
Graphics Card Test Sequence
How to verify a GPU failure?
The card isn't simply opened up and parts replaced immediately. First, monitor, cable, PSU, PCIe connector, and software issues are ruled out; then, the card's load and temperature behavior is measured.
01
Visual and physical inspection
PCB bending, burn marks, missing components, oxide, fan damage, broken ports, and previous repairs are examined.
02
Monitor, cable, and output comparison.
HDMI, DisplayPort, or other outputs are compared with different cables and screens to eliminate external display options.
03
PCIe and power connector
The card's fit into the slot, additional power connectors, cable type, PSU capacity, and the use of separate cabling are all checked.
04
Driver and software distinction
A clean driver installation is performed, and error logs, basic display driver behavior, and software conflicts are evaluated.
05
Load, temperature and stability test
GPU, VRAM, frequency, power consumption, fan speed, and error behavior are monitored under controlled load.
06
Comparison in another system
Testing the card with different motherboards and PSUs when appropriate can reduce the likelihood of system-related problems.
GPU and VRAM Distinction
Artifact doesn't just mean a GPU core failure.
Image distortion can be caused by the GPU core, VRAM chips, memory data lines, power circuit, driver, or high temperature.
GPU core symptoms
Driver loading can lead to crashes, black screen during 3D loading, instability below frequency, or image processing errors.
VRAM symptoms
Repeating patterns, colored blocks, errors in specific memory usage, or instability at high resolution may occur.
Power circuit symptoms
Problems such as shutdown under load, frequency fluctuations, abnormally hot power components, or system activation due to protection issues may occur.
Software and driver symptoms
Crashes occurring in a specific version, post-update issues, or bugs seen in only one game should be distinguished from hardware failures.
Monitor and cable symptoms
Interruption, color distortion, or signal loss at certain resolutions can be caused by cable bandwidth and monitor input.
PCIe and motherboard symptoms
A socket contact issue, motherboard BIOS setting, PCIe lane, or processor connection problem can all cause behavior resembling a graphics card malfunction.
Indications and Technical Control
Beylikdüzü graphics card failure guidance table
The table below does not represent a definitive result of the fault. It shows which areas should be checked in conjunction with the observed symptom.
Symptom
First checkpoint
Aim
The computer turns on, but the monitor isn't receiving a signal.
Cable, monitor, output port, PCIe seat, power input, and other cards.
Separating the card from the image chain.
There are lines or squares on the BIOS screen.
VRAM, GPU, output port, cable, and different monitors.
Verify the hardware symptom resulting from software installation.
The screen goes black after the game starts.
PSU, PCIe power cable, GPU temperature, hotspot, and driver.
Separating power, heat, and hardware instability.
Blue screen or restart after driver installation
Clean driver, VRAM, GPU, system RAM, and power behavior.
Separating the issue of software from the issue of hardware acceleration.
The fans are constantly running at 100%.
Fan cable, sensor, BIOS/firmware, temperature reading, and fan control.
Distinguishing between protective behavior and fan circuit failure.
The FPS drops noticeably shortly afterward.
GPU frequency, hotspot, VRAM temperature, power limit, and case airflow.
To determine frequency drop due to thermal or power sources.
Only one HDMI/DisplayPort output is not working.
Socket, protective cable, cable, monitor input, and driver settings.
Distinguishing a single port failure from a general GPU failure.
PCIe Power Input and PSU
Shutting down under load isn't always a graphics card failure.
Powerful graphics cards can create short-term high current demands. If the PSU capacity, cable configuration, and connector contact are not adequate, a black screen, restart, or performance degradation may occur.
PSU capacity
Not only the total wattage, but also the 12V line, quality, age, and instantaneous load behavior must be considered.
PCIe power cable
Depending on the card's requirements, separate PCIe cables, the correct connector, and secure contact may be necessary.
Using a converter
Improper SATA/Molex converters can cause overheating, voltage drop, and connector damage under high current.
PCIe slot
The card should be properly seated in the slot; the motherboard slot, case alignment, and contact surfaces should be checked.
the graphics card power connector shows signs of discoloration, melting, looseness, or excessive heat, the system should be shut down and the cable and card connection should be technically inspected.
Temperature and Frequency Behavior
Why might my graphics card be slow even though the GPU temperature appears normal?
The single-core temperature shown in the monitoring software is not representative of the entire card. Hotspot, VRAM, VRM, fan, and power limit also affect performance.
GPU core temperature
The main sensor value is monitored under load and interpreted along with fan speed and frequency.
GPU hotspot
It shows the hottest area on the chip. A high difference between the core and the hotspot may suggest a contact or cooling issue.
VRAM temperature
Especially under high memory loads, increased temperature can contribute to artifacts, frequency drops, or instability.
VRM and power elements
can cause the card to enter protection mode or shut down under load .
Fan curve and fan motor
The fan spinning alone is not enough; the acceleration behavior is controlled in conjunction with RPM, sound, vibration, and load.
Case airflow
If the card runs normally in the open case test but gets hot in the closed case test, the case fans and hot air exhaust will be evaluated separately.
HDMI and DisplayPort Outputs
A single port failure doesn't necessarily mean a general GPU failure.
A malfunctioning video output may be due to a problem with the physical socket, protective component, signal line, cable, or monitor input.
Physical socket damage
A bent pin, loose socket, impact damage, or solder joint issue can cause a single output to malfunction.
Protection and signal line
If the ESD protection components or the output signal path are damaged, no image may be displayed even if the socket appears intact.
Cable and monitor compatibility.
cables can cause signal interruptions when using high resolution, refresh rate, or HDR .
Driver and output settings
can cause problems with a single output.
Adapters and converters
Converters like DisplayPort–HDMI can behave differently depending on whether they are active or passive and the supported resolution.
Comparison with other ports
Obtaining images from different ports on the same card helps differentiate between a general GPU failure and a single port failure.
Driver and Hardware Separation
What checks should be performed if the graphics card driver crashes?
A driver error isn't always a software issue; hardware instability can also cause the driver to become unresponsive. The time of the error and the load condition are important.
Indications supporting the possibility of software involvement.
- The problem started after a specific driver version.
- It occurs only in a single game or application.
- It was fixed by a clean driver installation.
- Stable operation in safe mode and basic driver.
- The problem is resolved by resetting the overclock or undervolt settings.
Indications supporting the possibility of a hardware problem.
- Artifacts are even detected in the BIOS screen.
- The same error occurring in different systems.
- The error recurs as the load or temperature increases.
- Finding duplicate error addresses in VRAM test
- Black screen or restart as soon as driver installation
When is BGA Treatment Evaluated?
Reballing is not performed for every GPU failure.
The possibility of a BGA connection should only be considered after isolating the power, VRAM, driver, video output, cooling, and other fault areas on the PCB .
This could support the possibility of BGA.
, image malfunctions that vary with temperature or mechanical behavior may suggest a possible connection issue.
VRAM may not be sufficient in case of failure.
If the error originates from a specific memory chip or data line, GPU reballing will not resolve the issue.
It's not sufficient in case of an internal chip malfunction.
If the GPU's silicon structure is faulty, renewing the solder connections will not provide a permanent solution; chip replacement may be necessary.
Situations Where the Procedure Should Not Be Applied
Not every faulty graphics card can be repaired, either economically or technically.
PCB damage, chip availability, previous interventions, and the economic value of the board are all evaluated together.
If the PCB is carbonized
Common burns and layer damage in the power connector or VRM area can make safe repair impossible.
If the chip is unavailable
If the GPU itself is faulty, the connection process will not be sufficient without a compatible and working chip .
If the previous heat treatment caused significant damage
Heat guns, ovens, or uncontrolled reflow can cause PCB warping, pad loss, and damage to surrounding components.
If there are multiple faults
If the GPU, VRAM, power circuit, and PCB are all damaged on the same card, the processing cost and the risk of consequences increase.
If no malfunction occurs during the test
If the intermittent fault cannot be reproduced, the exact fault area may not be determined , and no solution may be recommended.
If it has no economic value
the total cost of parts, labor, and risk is not commensurate with the current value of the card, a replacement or alternative solution may be considered.
the graphics card has previously undergone any processes such as baking, heat gun application, reflow, or reballing, this information must be shared before the technical inspection begins.
Post-Operation Stability
Graphics cards are not tested with only a desktop image.
Obtaining a display on the desktop does not necessarily mean the card is stable under gaming or production loads. The test scope is selected according to the sign of the malfunction.
Cold opening
The card's display and driver behavior are checked when the system is completely cold.
VRAM test
Error, artifact, and stability behavior are observed through tests that increase memory usage.
3D load test
GPU frequency, power consumption, temperature, and driver stability are monitored under controlled load.
Output ports
HDMI, DisplayPort, and other compatible outputs are checked for supported resolutions.
The benchmark score alone does not represent the outcome of a repair. During testing , artifact, temperature, frequency, fan, power, and drive behavior should all be evaluated together.
Beylikdüzü Graphics Card Acceptance Point
Graphics card fault inspection at Paradise AVM.
Please share the card model, PSU, and failure history.
KTeknik Servis provides technical inspections for external graphics cards at its Paradise AVM service point in Adnan Kahveci Mahallesi. The exact card model, PSU make and model, power cable used, error messages, temperature readings, and previous operation history are all important factors in the evaluation.
Address
Adnan Kahveci Neighborhood, Yavuz Sultan Selim Boulevard, Paradise AVM No:16, Shop:10, Beylikdüzü / Istanbul
Frequently Asked Questions
Frequently asked questions about graphics card malfunctions in Beylikdüzü.
If the graphics card isn't displaying anything, is the GPU definitely faulty?
No. The monitor, cable, PSU, PCIe slot, power connector, motherboard, or BIOS settings can also cause the image to not display. The card should be compared with different components.
Is the artifact issue caused by the GPU or VRAM?
Both are possible. The artifact's form, time of formation, temperature, memory usage, and test results should all be evaluated together.
Why does the screen go black when the game starts?
A faulty PSU, PCIe power cable, high temperature, driver, GPU/VRAM instability, or power circuit problem can all cause a black screen.
If the graphics card fan isn't spinning, is it faulty?
On some motherboards, the fans may stop at low temperatures. Whether the fan engages under load should be checked, along with the software settings, sensor, and fan connections.
Why does FPS drop even though the GPU temperature is normal?
Hotspot, VRAM or VRM temperature, power limit, PSU, fan behavior, or case airflow can all cause a drop in frequency.
Is BGA reballing performed for every graphics card failure?
No. BGA processing is only considered if the possibility of a connection is supported by technical evidence . Different procedures may be required for VRAM, power circuit, port, or internal chip failures.
Will a graphics card malfunction erase the data on the hard drive?
A graphics card malfunction doesn't directly delete files on the storage unit. However, open files may be affected if the system shuts down or freezes .
What tests are performed after the graphics card repair?
Cold boot, driver, VRAM, 3D load, temperature, frequency, fan, power consumption, and video outputs are checked according to the type of failure.
Relevant Technical Sheets
For troubleshooting areas other than graphics cards, please go to the correct page.
This page focuses on GPU, VRAM, power, temperature, and video output issues on external graphics cards. Other troubleshooting areas are covered in detail on their respective pages.
Please provide your graphics card model and a description of the problem.
the exact model of the card, the make and model of the PSU, the PCIe power connector used, any error messages, temperature readings, and any previous actions taken via WhatsApp. The exact fault and cost information will be shared after all necessary tests on the card are completed .
Paradise AVM No:16 Shop:10 — Adnan Kahveci Neighborhood, Beylikdüzü / Istanbul