Graphics card faults show up as visual artifacts such as coloured dots, stripes or flickering textures, as "display driver stopped responding" crashes, or as a black screen under load. Many turn out to be heat, drivers, loose power cables or an unstable overclock rather than a dead card. If the fault follows the card into another PC, or appears on screens that load before Windows, the card has failed and replacement is the realistic fix.
What do different artifacts and crashes tell you?
Where and when a fault appears is the most useful clue you have. Glitches that show up in the BIOS screen, or on the desktop before any game starts, point at hardware or cabling. Faults that only appear when the card is working hard point at heat, power or unstable settings. Use this table as a first pass.
| What you see | What it usually points to |
|---|---|
| Artifacts on the BIOS or boot screen | Hardware: the card, its memory, the cable or the monitor, since no driver is loaded yet |
| Coloured dots, checkerboard blocks or stretched shapes in games only | Video memory errors, overheating or an unstable overclock |
| Screen goes black, fans spin up, PC stays on | Driver crash, heat or a power delivery problem |
| Message that the display driver stopped responding and recovered | Driver instability, heat, power or a failing card |
| Whole PC restarts under load | Power supply overload, overheating, or a card drawing more than the PSU can give |
| Crash in one game only | That game or its settings, not the card |
| Flicker, green or purple tint, random flashes | Cable, connector or monitor fault |
Windows keeps a record of display driver resets. Open Event Viewer, then Windows Logs, then System, and look for Display events with ID 4101. A pile of those at the time of your crashes confirms that the driver is repeatedly failing, though it does not by itself say why.
Which software checks should come first?
Software causes are the cheapest to rule out, so start there. A damaged driver install, a driver update that does not suit your card, or an old overclock profile can mimic hardware failure closely. Make one change at a time and test after each, so you know which step actually helped.
- Reset every overclock. Remove any tuning from your graphics utility, and turn off the memory profile in BIOS temporarily to rule out unstable RAM as well.
- Do a clean driver install. Use a removal tool such as Display Driver Uninstaller in Safe Mode, then install the current driver from the card maker's website. If the problem began after an update, try the previous version.
- Update Windows and the motherboard chipset drivers. Mismatched chipset drivers can cause PCIe instability.
- Turn off overlays and recording tools while you test. Some interfere with games and trigger crashes.
- Watch temperatures using a monitor tool such as GPU-Z or HWiNFO while you play. If readings climb steadily and the glitches begin at the peak, you are looking at a cooling problem.
What physical checks are worth doing?
Physical causes are common on cards that have run for years in warm, dusty rooms. These checks are safe if you switch off and unplug first, and they cost nothing. Do them before assuming the card is dead.
- Reseat the card. Release the PCIe latch, lift the card out, and press it back until the latch clicks. Look at the gold contacts for dirt or scorch marks.
- Check the power plugs. Each connector must be pushed fully home. For cards with several power inputs, use a separate lead from the power supply for each, rather than one daisy-chained cable, since high-power cards pull a lot through a single wire.
- Look at the fans. They should all spin freely and ramp up under load. A fan that stalls or rattles means a quickly overheating card.
- Clear dust. Use short blasts of air, holding the fan blades still so they do not over-spin, and clean the heatsink fins and case filters.
- Review case airflow. Cards recirculate their own heat in a closed case. Add or reposition fans if needed.
Replacing a card's thermal paste or thermal pads is possible but delicate. The pads over memory and power parts have specific thicknesses, and getting them wrong can make things worse. It also usually voids the maker's warranty, so do not attempt it on a card that is still covered.
A weak or ageing power supply is another frequent hidden cause, because a card that crashes only at full load may simply not be getting steady power. Our guide to choosing and replacing a PSU explains how to size one for your card.
How do you prove the card itself has failed?
The cleanest proof comes from swapping things around. Move the card to another PC, ideally with a different power supply, and test it. Then run your own PC with a different graphics card, or with the integrated graphics if the CPU has them. Together those tests separate a failing card from a faulty slot, PSU or Windows installation.
- Card in a second PC. Same artifacts means the card is faulty. A clean result points back to your original PC.
- Your PC on integrated graphics. Plug the monitor into the motherboard output, remove the card, and use the PC normally for a day. If crashes stop, the card was the problem.
- Different cable and monitor. Try a second cable, a different port on the card and, if possible, another screen to rule out the display side.
- A controlled load test. Run a benchmark such as 3DMark. Stop at once if artifacts appear. Repeated runs with the same artifacts at the same point suggest failing memory on the card.
What are your options once the card has failed?
Realistically, a graphics card with failing video memory, a damaged graphics chip or burnt power components is replaced rather than repaired. Those faults are inside tightly packed components that a normal workshop cannot restore reliably. Fan faults and heavy dust are the exceptions, since they can be fixed cheaply when they are the whole problem.
First check whether the card is still under warranty, because many carry several years of cover from the brand, and an invoice is usually needed. If it has expired, you are choosing a replacement or an upgrade. Match the new card to your monitor's resolution, confirm it fits the case, and verify that your power supply has the right connectors and enough capacity. Xigox's indicative price list shows power supply replacement from ₹3,000 to ₹5,000 for 650W and ₹5,000 to ₹8,000 for 850W and above, in case the new card needs a stronger supply.
Xigox diagnoses graphics faults and advises on replacement or upgrade. It does not offer to revive a dead graphics chip, so the advice you get rests on test results rather than a hopeful repair attempt that may not last.
Frequently asked questions
Can overheating permanently damage a graphics card?
Sustained high temperatures can degrade solder joints and components over time, and cards generally throttle or shut down to protect themselves first. Repeated heavy heat cycles on a dusty or poorly ventilated card shorten its life.
If only one game crashes, is the card to blame?
Rarely. One misbehaving game usually means a game bug, a driver mismatch or specific graphics settings. Crashes across several demanding games are more suggestive of the card, power or heat.
Can I use my PC without the graphics card?
Yes, if your CPU has integrated graphics. Remove the card and plug the monitor into the motherboard's video output. Performance will be limited, but the PC stays usable while you decide what to do.
Can a bad power supply cause artifacts?
It can. Unstable power under load may cause crashes, restarts and sometimes visual glitches, especially with a high-power card on an undersized or old supply.
Is buying a used graphics card risky?
It can be. You cannot see its history, and heavy past use may have worn the fans and thermal pads. Test it under load before paying, and favour sellers who allow that.
If you cannot tell whether the card, the power supply or the PC itself is at fault, Xigox can collect the PC, diagnose it and give you a written quote before any work begins. The ₹350 inspection fee is refunded if you go ahead. Read about desktop graphics card upgrades, see our guide to gaming PC crashes during games and the no display diagnosis guide, or check the price list and book a free pickup. The gaming PC repair page lists related services.
