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One GPU fan never turns on

Post Date: 2020-07-09

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relindwto6 View Drop Down
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  Quote relindwto6 Quote  Post ReplyReply bullet Topic: One GPU fan never turns on
    Posted: 09 Jul 2020 at 11:32am
I run two 980s in SLI. Both fans work and are running at boot up but while under load and gaming only the top GPU has fans running. The bottom one just twitches a little bit every couple of seconds. Temps seem to differ around 20 degrees the hottest one being the top (64-70) and bottom is around (43-45). I tried switching the GPUs. Both ran at boot up but still only the top ones fans ran during gaming and bottom on twitched. How can I get both fans to run? I have had the pc for about 3 years not even sure if this was a thing from the start, never really paid the much attention to the fans till now.thanks.
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hoserator View Drop Down
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  Quote hoserator Quote  Post ReplyReply bullet Posted: 09 Jul 2020 at 12:05pm
The top gpu (closest to cpu) is the one doing the work, its fan is facing its partner .and gets hotter. The secondary gpu does not get hot enough to get the fan going.  They don't work equally all the time even in sli. Depending on the gpu you have you can go to their mfg website and dl software to control them. Like Precision X1 for EVGA.
The gpu is running warmish because it is probably doing a lot of work being a couple of generations past its prime. If you can wait a couple of months, I'd upgrade to one of the new ones reputed to come out sometime in Sep. You would only need 1 then, bringing down the case heat considerably.


Edited by hoserator - 09 Jul 2020 at 12:09pm
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Cretae View Drop Down
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  Quote Cretae Quote  Post ReplyReply bullet Posted: 10 Jul 2020 at 3:30am
Correct.

64-70C is not nearly dangerous for that card. The other temp is downright chilly. Why it rarely comes on.
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