Computer sounds like a jet Engine at Startup

[ccoo84]

Hello is there a way to have my PC startup quietly ? I have GTX 770 sli and purchased the H100i water cooler to quite my computer but when I start the computer all the fans blasting sounds like a Satern 2 rocket taking off and then goes quite. Is there a way in the Bios to have a Quite start or something?

 

[turkey3_scratch]

Haha, I love the Satern Rocket analogy. Mine does the same thing, I am not sure if there is a way to really prevent this. There may be something in the BIOS.

 

[babachicken]

it happens with my PC as well.... im pretty sure it happens with everyones

 

[Damn_Rookie]

If I remember correctly, one of the features of the Twin Frozr IV cooler on the MSI 770s is that they run in reverse (at high speed) upon start up to remove dust. After this they revert to the normal direction, and run at a normal speed. While it may be annoying, and you could likely flash it with a modified BIOS to prevent this feature, I don't recommend trying to alter them, as it does this for a good reason (dust removal).

EDIT: Ah, here we go:

 

[ccoo84]

Yeah thanks I didn't even think of that but FOR <Mod Edit> SACKES ITS ANNOYING and very very disturbing!!!

 

[Damn_Rookie]

No worries glad to help

And yeah, I can certainly believe it's annoying!

 

[menetlaus]

I think some systems do this in order to make sure the fans spin up. Typical case/CPU fans run full speed at 12v and the system knows that supplying a lower voltage will reduce the rotational speed.

When a system has been off for a while and everything is "cold" the lubricants in the fans is (typically) less viscous and a lower voltage will not be able to get the fan to start spinning because of the increased resistance.

To avoid this, for a few seconds at boot, the fans are run at the full 12v in order to ensure they spin up. From this moving the slight amount of heat created warms the lubricants, which makes them work better, and the fan will stay spinning at a lower voltage/rotational speed.