Is it normal : GPU fans spin at 100% on startup? (GTX 770 Gigabyte)

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Yuki Core

Yuki Core

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Aug 1, 2013
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Is it normal that my GPU fans spin at 100% (I presume) at startup ? It's before Windows 7 boots, as soon as the welcome screen comes up, the fan speeds drop.

GPU : Gigabyte GTX 770 OC (2GB)
Motherboard : GA-Z77X-D3H
OS : Windows 7 64bit
PSU is 700W, no problems there.

I should mention that I had my previous GPU, that I RMA'd Sapphire HD 7950 OC was spinning 100% and nothing happened at all. After some time I would be able to boot, but then after I launch an application that makes it load, it crashes down, fans 100%, black screen, same effects after reboot.

So then I got GTX 770 in exchange, as I did not like ATi driver support, performance etc.

So now I'm kinda skeptical about all this, maybe its my Motherboard? And after boot Nvidia drivers take over? But no problems on load though, so far.

It also could be a feature to blow out dust out of card, but I'm not sure, I need guarantees, I can't stand the lack of knowledge :/
 
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GeekThief-1354135
Ok so just got home and turned my pc on and off 3 times. and the fans only seem to spin at half speed all the way to fully loaded desktop.
But then again i do have a different make off gtx 770 and Gigabyte has gone for a different cooling solution to MSI.
anyways thought i would give you an update :)
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n1ghtr4v3n

n1ghtr4v3n

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Feb 27, 2013
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I had been having the same issue on my sapphire 7870xt with boost edition. I realized on some drivers with overclocking setups it causes the fans to run at full rpm (after booting in to Windows), until there is an application running then the fan curve starts actually to control the fans.

So... uninstalling and deleting all software and settings related to GPU overclocking.

Then upgrading both gpu drivers and msi afterburner/evga precision w/e stuff to latest beta software, and re-creating the custom fan profile as well as frequency/voltage settings for overclocking setup.

Its all fixed.

It may work with you too.
 
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Yuki Core

Yuki Core

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Thanks, please do. But I've heard that MSI fans spin backwards at startup to blow the dust not through the card, but out the other way.
 
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Yuki Core

Yuki Core

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Hey, hey, hey. That's not the issue I am having. I wrote that it stops spinning excessively after windows has started. But thanks anyway, just read more carefully next time.

The card is brand new, and same effects occurred on the first boot too, so no overclocking software could cause this. Although I did not reinstall windows. But I had only tried overclocking twice, and reverted effects after...
 
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Yuki Core

Yuki Core

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I also have a CPU cooler with PWM , but it doesn't do that!?! Although, maybe it's so silent I don't notice, Will update on this.

Could those be some kind of overclock data uploaded to motherboard... hell, I don't know, I'm not experienced in this. Have you ever overclocked your GPU/CPU?
 
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GeekThief-1354135

GeekThief-1354135

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Ok so just got home and turned my pc on and off 3 times. and the fans only seem to spin at half speed all the way to fully loaded desktop.
But then again i do have a different make off gtx 770 and Gigabyte has gone for a different cooling solution to MSI.
anyways thought i would give you an update :)
 
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Solution
Yuki Core

Yuki Core

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Aug 1, 2013
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Thanks man, did you mean that they spin at half speed until desktop and then drop down to something like 20%?

I don't really know what might be the reason for it to do it, other than to blow out dust. Maybe it's to avoid temperature shock to the components, to cool them down quickly making them slower to heat up, but that theoretically sounds quite impossible, as the fans could only make the card as cool as temperature of the room + 5-10 *C at the most. Although... well I can't just theoretically admit that.
But that doesn't matter much anymore, let's leave it as the dust blow out thingy. I just tested what it sounds like at 100% RPM of the fans, and it's not even close to that noise on startup :D Well anyways, thanks for the help EVERYONE!!!
 
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