Graphics card overheating help with fan replacement

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justcallmedeece

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Mar 3, 2013
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Hey my graphics card has been overheating and my pc is just turning off all the time now. I recently discovered that the fan on the graphics card isn't spinning and I'm not sure how to find a replacement with the measurements, not sure what they are for that will fit in the card. The graphics card I have is the radeon 6870

http://www.amazon.com/XFX-Radeon-6870-Video-Card/dp/B008UBROU0/ref=sr_1_3?ie=UTF8&qid=1387012534&sr=8-3&keywords=radeon+6870

any help selecting a replacement fan would be great.
 
Solution
coozie7
First you NEED to get something on the card to bring its temperature down: The old trick of sticking of cable tying a suitably sized case fan over the existing fan opening will do the job, just remember the fan blows INTO the card ;) and cut the old fan blades off with a pair of nail clippers to improve cooling and stop the noise.
That's card uses a custom circuit board, not all aftermarket coolers will fit and you'll probably need to sort out your own Voltage Regulator Module (VRM) cooling, if you don't cool the VRMs they'll overheat. And Die. Very quickly.
Try contacting you XFX importer or XFX themselves for a warranty replacement if you can find the invoice, it's an older card but may still be within the warranty period. They may...
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coozie7

coozie7

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Jun 2, 2007
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First you NEED to get something on the card to bring its temperature down: The old trick of sticking of cable tying a suitably sized case fan over the existing fan opening will do the job, just remember the fan blows INTO the card ;) and cut the old fan blades off with a pair of nail clippers to improve cooling and stop the noise.
That's card uses a custom circuit board, not all aftermarket coolers will fit and you'll probably need to sort out your own Voltage Regulator Module (VRM) cooling, if you don't cool the VRMs they'll overheat. And Die. Very quickly.
Try contacting you XFX importer or XFX themselves for a warranty replacement if you can find the invoice, it's an older card but may still be within the warranty period. They may also carry limited spares or be able to point you to someone who does carry a replacement fan or cooler assembly. Make sure you have the EXACT model and serial number to hand if you phone them.
 
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Solution
Shaun o

Shaun o

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Oct 7, 2007
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The fans on a 6870 card can be 65mm or 75mm, it will be one or the other.
Some are new others used condition.

measure your diameter, and the spacing between each of the three screw points that mount to the heat sink of the gpu cooler, and make sure you note the pin type four pin are more common on new cards, you can get three pin ones also.

You can buy spare or new ones from ebay.

http://www.ebay.co.uk/itm/75mm-ATI-HD-6870-6950-6970-6990-Video-Card-Fan-Replacement-4Pin-PVB070G12N-2-0A-/170791594022
 
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J

justcallmedeece

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Mar 3, 2013
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can't replace it? how come I completely took apart the graphics card last night opened it took the fan off to clean the entire thing out. I had seen a past thread of someone asking the same question and others had posted ebay links to fans but this was years ago so they were expired links. I mean I'm fine with taking the plastic back off and putting custom fans on if thats what it takes but I'd rather find a fan that size. There is three screws in the fan into the heatsink that can be reached without opening the card again.
 
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J

justcallmedeece

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Mar 3, 2013
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And also I'm not completely clueless to how pcs work I installed my own motherboard psu and processors but I did all that from watching videos to learn how so I can pick up on stuff pretty fast I'd rather try to keep it as simple as possible tho because my case has little to no room in it so adding a new heatsink may not fit into my casing. IT's just I'm not sure how to measure it or more precisely what to measure it with.
 
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Shaun o

Shaun o

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Oct 7, 2007
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Just use a rule if you have one.
Measure from the edge of the fan tip at its longest point to the center point of the fan, double it.

32.5mm doubled is 65mm.
37.5 doubled is 75mm

That way you will know the rough overall diameter.
Next turn the fan over to where it screws to the heat sink through the resting mounts.
There are two mounting lugs of the same length. there the points you measure from to get the right mount size.
Set the rule to the center point of one hole where the screw goes through at zero mm on the rule.
Measure to the other center point on the other hole on the screw mount of the fan.







 
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