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Graphics Card Fan Stopped Spinning: Overheating, Repair Options & Considering New Purchase

DenyPL 58995 28
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How can I fix a graphics card fan that has stopped spinning and causes overheating, or do I need to buy a new one?

You can usually fix it by replacing or servicing the fan instead of buying a new graphics card: one answer suggests mounting an 80 mm fan with clamps/screws, and another says the fan may just need cleaning or lubricating if dirt has seized the bearing [#12564321][#12566796] If the card still reaches 100+ °C under load, remove the heatsink, clean off the old thermal paste, apply new paste, and make sure the cooler is mounted correctly [#12576217][#12578568][#12578640] Also check the case airflow and the power supply, because the thread points out that a bad PSU can raise voltages under load and the Qoltec SilentLine 425 W was considered suspicious [#12574833][#12578505][#12578625]
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  • #1 12564119
    DenyPL
    Level 12  
    Posts: 116
    Rate: 17
    Hello, the fan in the graphics card has stopped spinning, which is why it heats up terribly. The computer is now running dry and its temperature is 70 degrees.

    Is it possible to fix it somehow or just buy a new graphic?
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  • #2 12564144
    Dra98
    Moderator of Computers service  
    Posts: 9177
    Help: 1316
    Rate: 1066
    DenyPL wrote:
    The fan in the motherboard has stopped spinning, which is why it heats up terribly

    The easiest solution is to replace it.
    DenyPL wrote:
    can it be repaired somehow or just buy a new graphic?

    If it is on the card and not on the board, the fan can also be replaced. A photo would be nice.
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  • #3 12564159
    DenyPL
    Level 12  
    Posts: 116
    Rate: 17
    A mistake, it was about the graphics card.
    Graphics card photo?

    Added after 38 [minutes]:

    The graphics are GT520.
    can this card overheat in any way? I read now that not (?).
    Currently, the temperature is 65 degrees. We'll see when I start a game ..
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    #4 12564321
    Dra98
    Moderator of Computers service  
    Posts: 9177
    Help: 1316
    Rate: 1066
    It is enough to mount it with clamps or screw on the fan 80 and unscrew the current one earlier. I asked for a photo earlier, this could be answered more precisely.
  • #5 12564349
    DenyPL
    Level 12  
    Posts: 116
    Rate: 17
    Unfortunately, I cannot add a photo now (I will add it tomorrow morning)
    I can buy a fan because the price, as far as I know, is a few zlotys. But I can't go to the city and buy, I would have to order, for example, on the Allegro and wait a few days for the shipment, and I do not care about time.
  • #6 12566452
    DenyPL
    Level 12  
    Posts: 116
    Rate: 17
    Now suddenly the fan started to spin. What could be due to it spinning once and then not? How to clean it?
  • #7 12566492
    Dj Haker

    Level 35  
    Posts: 2927
    Help: 322
    Rate: 99
    1. The windmills are in the fields. You have a fan.
    2. http://www.dzikie.net/index.php?art=fan_clean
    A lot of instructions on the Internet. Search for fan maintenance / cleaning.

    This may be because it is rubbed off by dirt or because it is not powered. The first case is the most likely and common.
    Company Account:
    Odzyskajdane.info
    Aleja Kijowska 24, Kraków, 30-079 | Company Website: https://odzyskajdane.info
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    #9 12566796
    Dj Haker

    Level 35  
    Posts: 2927
    Help: 322
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    If this photo is yours, you have already taken it apart. You just need to lubricate this roller.

    If not, insert a photo on both sides of the fan.

    Did you look at the link I gave you?
    Company Account:
    Odzyskajdane.info
    Aleja Kijowska 24, Kraków, 30-079 | Company Website: https://odzyskajdane.info
  • #10 12566831
    DenyPL
    Level 12  
    Posts: 116
    Rate: 17
    No, the photo is not mine.
    I looked at the link, but I just can't completely dismantle this fan.
    I will try to add a photo soon ..
  • #11 12573819
    DenyPL
    Level 12  
    Posts: 116
    Rate: 17
    I did so that I attached a fan 80 to the card (bigger and probably more efficient than the one in the card) but still heats up, in the 'rest' state it is ok.the temperature is about 55-60 degrees, but when I turn on a game after a while the temperature reaches 100+ and the computer is resetting. what could it be?
  • #12 12574833
    stroggo81717
    Level 31  
    Posts: 1910
    Help: 45
    Rate: 41
    Is the inside of the case clean or dirty?
    Is air circulation good in the housing?
  • #13 12575052
    michal7778
    Level 29  
    Posts: 1290
    Help: 90
    Rate: 66
    Is the fan blowing air towards the graphics card? Has thermal grease been replaced on it?
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  • #14 12575167
    Robert B
    Level 43  
    Posts: 22594
    Help: 2027
    Rate: 1412
    Well, show off what power supply you have for this.
  • #15 12576217
    wycior01
    Level 21  
    Posts: 493
    Help: 26
    Rate: 29
    Replace the paste on the graphics - it helps to lower the temperature by a few * C, show off the power supply, maybe it is ailing.
  • #16 12578487
    DenyPL
    Level 12  
    Posts: 116
    Rate: 17
    I have recently cleaned the computer from dust, the fan is directed straight towards the card, everything has been ok since I bought the computer, now such 'hits'
    Approx. I will change the paste.
    Power supply model: qoltec silentline 425w
  • #18 12578544
    DenyPL
    Level 12  
    Posts: 116
    Rate: 17
    ok. I will replace the power supply + card and after the trouble.
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  • #19 12578568
    swiercm
    Moderator on vacation ...  
    Posts: 18308
    Help: 1216
    Rate: 550
    DenyPL wrote:
    ok. I will replace the power supply + card and after the trouble.


    What is the card for? Disassemble the heat sink, lubricate it with thermal grease, remove the previous residues, properly install the cooling and that's it.

    Power supply for replacement, so you can ask in the sales department.
  • Helpful post
    #20 12578582
    wariato
    Level 43  
    Posts: 35419
    Help: 1213
    Rate: 838
    The GT520 is so weak that it can be passively cooled in an airy shed. Apparently, you don't even have a draft, since without a fan it heats up with it.
  • #21 12578608
    DenyPL
    Level 12  
    Posts: 116
    Rate: 17
    I would like to add that it started doing this for a few days. also it is not a question of whether there is a draft or not. because she used to do it ...
  • #22 12578614
    swiercm
    Moderator on vacation ...  
    Posts: 18308
    Help: 1216
    Rate: 550
    DenyPL wrote:
    I would like to add that it started doing this for a few days. also it is not a question of whether there is a draft or not. because she used to be able to ...


    And this is not related to a sudden increase in ambient temperature?
    Once upon a time, the paste was new - it lost its properties ... ;)
  • #23 12578622
    wariato
    Level 43  
    Posts: 35419
    Help: 1213
    Rate: 838
    DenyPL wrote:
    once she managed ..

    In the past, a man was able to cope, today he will sink like a badger. Nothing is eternal.
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    #24 12578625
    Robert B
    Level 43  
    Posts: 22594
    Help: 2027
    Rate: 1412
    swiercm wrote:
    Once upon a time, the paste was new - it lost its properties ... :wink:

    In the past, this "power supply" was also new, and now it can additionally increase the voltage under load.
  • #25 12578626
    DenyPL
    Level 12  
    Posts: 116
    Rate: 17
    after replacing the power supply, the fan in the card will start spinning normally?
    + tomorrow I will buy the paste and replace it.

    Added after 52 [seconds]:

    Robert B wrote:
    swiercm wrote:
    Once upon a time, the paste was new - it lost its properties ... :wink:

    In the past, this "power supply" was also new, and now it can additionally increase the voltage under load.

    you speak well. Notifications popped up that my voltage was too high :O
  • #26 12578631
    swiercm
    Moderator on vacation ...  
    Posts: 18308
    Help: 1216
    Rate: 550
    wariato wrote:
    DenyPL wrote:
    once she managed ..

    In the past, a man was able to cope, today he will sink like a badger. Nothing is eternal.


    Is. Eternity. :D

    Oh yeah BTW. Author, maintenance card and replace this power supply. Did you install this fan when removing the damaged one?
  • #27 12578635
    DenyPL
    Level 12  
    Posts: 116
    Rate: 17
    Yes. there is no that.
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    #28 12578640
    swiercm
    Moderator on vacation ...  
    Posts: 18308
    Help: 1216
    Rate: 550
    Robert B wrote:
    swiercm wrote:
    Once upon a time, the paste was new - it lost its properties ... :wink:

    In the past, this "power supply" was also new, and now it can additionally increase the voltage under load.


    As long as he has never overestimated them. ;)

    Added after 1 [minutes]:

    DenyPL wrote:
    Yes. there is no that.


    I am asking, users can do things differently ... eg. Install the second heat sink upside down "on the teeth" for the first one and I am surprised that it is even worse ...
  • #29 12579018
    Robert B
    Level 43  
    Posts: 22594
    Help: 2027
    Rate: 1412
    DenyPL wrote:
    Notifications popped up that my voltage was too high

    So I propose to additionally check ALL the capacitors on the board and cards.
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Topic summary

✨ The discussion revolves around a graphics card (GT520) whose fan has stopped spinning, leading to overheating issues with temperatures reaching 100+ degrees Celsius during gaming. Users suggest various solutions, including replacing the fan, cleaning it, and checking the thermal paste and power supply. The author initially considers purchasing a new graphics card but later opts to replace the fan and thermal paste. The conversation highlights the importance of proper airflow, fan maintenance, and the potential need for a power supply upgrade to resolve overheating problems.
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FAQ

TL;DR: A failed GPU fan can spike core temps by 30 °C in two minutes [PCG, 2021]; "Clean, lube, replace—don't ignore a stuttering fan" [Elektroda, Dj Haker, post #12566492] Replace/lubricate the fan, renew thermal paste, and verify PSU voltages to stop 100 °C shutdowns.

Why it matters: Rapid overheating shortens GPU life and may signal a dangerous power-supply fault.

Quick Facts

• Safe idle temperature for GT520: 30–60 °C; throttling starts ≥95 °C [NVIDIA Spec]. • 80 mm replacement GPU fan: approx. €5–10 including shipping [Amazon EU, 2023]. • Fresh thermal paste can drop GPU temps by 5–12 °C [GamersNexus, 2019]. • 15 % of GPU fans fail within three years [TechSpot, 2018]. • PSU voltage spikes often precede fan stalls [Elektroda, Robert B, post #12578625]

Why did my GT520 fan stop spinning only sometimes?

Dust in the bearing increases friction until the motor stalls; once debris shifts, it runs briefly [Elektroda, Dj Haker, post #12566492] Voltage spikes from a failing Qoltec 425 W PSU can also cause intermittent starts [Elektroda, Robert B, post #12578625] "Intermittent spin is a red flag—service it now," warns repair trainer J. Coles [J. Coles, 2022].

Can the GT520 safely run without an active fan?

No. While the GT520 is low-power, stress tests push it beyond 100 °C, triggering resets [Elektroda, DenyPL, post #12573819] NVIDIA lists 105 °C as the shutdown limit [NVIDIA Spec]. Passive operation needs a larger heatsink and strong case airflow.

How do I clean and lubricate the graphics-card fan?

  1. Remove the shroud and unplug the fan.
  2. Peel back the hub sticker, add one drop of light machine oil to the shaft.
  3. Blow out dust with compressed air, reassemble. Done in under ten minutes (Fan Clean Guide).

What replacement fan size fits most GT520 boards?

Many GT520 PCBs accept a 40 mm or 50 mm 12 V fan with 40 mm screw spacing; an 80 mm case fan can be cable-tied as a workaround [Elektroda, Dra98, post #12564321] Measure mounting holes before ordering.

Could my power supply be causing the overheating?

Yes. The Qoltec Silentline 425 W is listed among unstable units; high ripple heats GPU VRMs and can stall fans [Elektroda, Robert B, post #12578505] Replace with a 300–400 W unit from a reputable brand delivering <50 mV ripple (HardwareSecrets PSU Database).

What is the maximum safe temperature for a GT520 GPU core?

NVIDIA specifies 105 °C as the critical limit; sustained operation above 95 °C accelerates solder fatigue [NVIDIA Spec]. Aim for <85 °C under gaming loads.

How do I apply new thermal paste correctly?

  1. Remove heatsink and clean GPU die with isopropyl alcohol.
  2. Apply a pea-sized paste dot (≈0.1 g) in the center.
  3. Re-seat heatsink evenly, tightening screws in a cross pattern [Elektroda, swiercm, post #12578568] Expect 5–12 °C lower temps [GamersNexus, 2019].

Edge case: What if the GPU fan header is dead?

A failed header delivers 0 V even with a new fan; confirm with a multimeter. If dead, power the fan from a 3-pin motherboard header or 12 V molex adapter, but monitor RPM manually (ASUS Fan-Header Fail FAQ).

How can I monitor temperatures and voltages in Windows?

Install HWInfo or GPU-Z; log GPU core temps, fan RPM, and 12 V rail. Set alarms at 90 °C and ±5 % voltage deviation [HWInfo Manual, 2022].

Should I replace the graphics card instead of repairing?

A used GT1030 offers triple the performance for ~€60 and uses <30 W (TechPowerUp DB). Repairing the GT520 costs €10–15 (fan + paste). Replace if artifacts appear or caps bulge [Elektroda, Robert B, post #12579018]"
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