Good old friend GTX 560 TI fans stopped working :(

loghin

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Hello guys, I have checked the forum around and I couldn't find an answer.
So here it goes. I have a 560 TI, works just fine when I plug it in. problem was, One of the 2 fans stopped working but It was still running under a good temperature for what I was using my PC for under 1 fan. So I thought, hey I'll just buy a stock fan that has the same voltage and just connect it on direct power, a bit of extra cooling will only do the card good.
All said and done until I think i stupidly messed around and the wires touched so now both fans are not working, even though when I first tried out to see if the fans will spin, they both spined, only when I tried placing the replacement fan in a better position and running it again, they didn't start anymore. I took apart the cooling system and tested the voltages. Both fan still work so they are not fried out.
Also the power pins on the card don't seem to be fried from what the voltage meter tells me, so all reading are pointing me to that hey this should work, but still when I place the card in my PC the fans won't spin.

I have tried using the Nvidia fan Control to manually run the fans without success , and GPU-Z tells me the fans are spinning, when they clearly are not.

Any ideas or work-around this? I just don't want to give up on my 560 TI.
Thank you!
 
Solution


They are 12V as you said , connect them to any 12V plug , being Sata or 4 pins Molex plug ... get the right cable for this.

samer.forums

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you should not connect non standard fan using the Card pins , some fans draw alot of power , more than the Card fans. and maybe more than the card can handle.

The card itself , does it still work or not?

your best way now is to get another cooler for your GPU.

but I dont know if it is worth it or not because you can get a used 560 Ti for the same price , you can find GTX 560 Ti for $30 only on ebay.

There is no point in repairing this or buying fans for it.
 

loghin

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Wow, I didn't know they got so cheap. Anyway, It's like I got a bit attached to it. It worked so well never had issues with it until now and It ran virtually any game I wanted to play( not a big gamer, just very occasional player ) .

- The card itself works great. Starts up windows, stays at a decent temp without the fans running and works for just browsing, but as you guessed when I start having multiple tabs open, videos the temp starts going up and I don't want to kill it without it's fans running.
- I tested the fans individually using an external power source and they both work.
- I made sure not to take a bigger fan, actually the fan I bought has the same voltage 12v but even lower amps. So the original fan has 40 amps, this one has 10 amps so I'm very sure It's not overloading the power grid.

So I think by buying a new cooler for the GPU will bring the same issue, of it not running, since both fans are running when connected to an external power source.

I'm thinking maybe the GPU has a protection of some kind and It stopped providing voltage to the fans because of me touching the wires together, and maybe It's bios related? Because If it's hardware related as a last option If anyone here doesn't know a resolution I'm thinking of connecting the cooler to an en external power source so that the fans will just run as is. I wanna ride this card until It fully dies.
 

Eximo

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I agree samer.forums on this one. Any money you spend on this card is basically money that could be spent on a used card with more performance. (Or a brand new one with a lot more performance)

GPU fans are usually PWM, if you took a standard fan and plugged it in parallel the fan controller might not behave correctly anymore. It is expecting a certain amount of total power to spin the pair of fans. The new one probably takes more and then there isn't enough to drive both. You mentioned they spinned up, probably the self cleaning procedure on boot, which usually runs at full speed. So another thing to try would be something like MSI Afterburner and setting the fans to a higher speed.

Does the single fan still work if plugged in independently?

Option 3 would be to ditch the GPU fans and place case fans directly onto the GPU cooler, but power them from the motherboard or power supply. This is surprisingly effective. I repaired my friends 4850X2 with two 120mm fans. He managed to break the original fan blades during cleaning and the unbalanced blades wore the bearings out.
 

loghin

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Yeah sorry for the error, correct, they are 0,40. and the fan replacement I bought is 0,10. I guess you're right in regards of the fan controller. Is there any quick fix for it? Like maybe fool it into running continuous or something by gluing some parts together? If not I'll buy a cheap battery charger that I saw are around 2-3$ that run under 12v 0.10-40. and connect the fans separately to it.
 

samer.forums

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you can connect the fans directly to the power supply and keep them running at full speed . no need to connect them on the card itself.
 

loghin

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That fan doesn't work independently anymore either. Before it did just fine.
When I placed the replacement fan, they both worked, but the wires were still not isolated and left open like that, and to be honest I checked them in the open, by directly placing the 2 wires of the replacement fan, to the other 2 of the 4 wires of the old fan that was removed. It instantly started running, I was happy but the only issue was the fan was not blowing in the direction of the card and outside. So when I flipped it over, and I think during this procedure the wires touched together and killed the fan controller.

Hmm, interesting solution with the case fans. This current case has about 4 fans, too many if you ask me since the system is never used at full capacity so nothing ever heats up much or even has a reason to. Will see what options is easier for me, currently my only solution was to buy a batter charger that has 12v and 0.10-0,40 amps and connect that gpu fans to that. But If taking out the case fans and placing them on the gpu card radiator will work faster I'm down for this idea.


 

loghin

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How can I do this?
 

samer.forums

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They are 12V as you said , connect them to any 12V plug , being Sata or 4 pins Molex plug ... get the right cable for this.
 
Solution

loghin

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Thank you so much samer.forums and Eximo . I would of picked both of you guys as a solution. But samer's is the fastest way, with minimal intervention. I'll go get a proper cable and connect them It directly to the PSU
 

loghin

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Thank you for the answer. Just out of curiosity. Can the fan controller issue be fixed in any way? Or is it just not worth it.
 


Probably not with out some soldering skills, it wouldn't be worth it.
 

loghin

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Hey guys, one last update. I'm back and running on my old 560 TI for now. Just placed it in today, after samer.forums 'opened my eyes' to the situation. I'm in luck since my PC case actually had 2 cables available that you can connect additional fans to. I had to force the entry just a bit for the GPU fans to connect to it, but I've managed it. Better yet, I have a button on my case that adjusts the fans speed. I've left it on Idle since turning it on max speed is a bit too loud to have it constantly in the background. I've tested it out with the classic League of Legends game running on High with disabled shadows. It didn't go past 54 C. So I'm one happy camper. Under normal load, such I am on now writing this post. It stays at a constant 30-31 C.