4870 fan speed question

[kmufc77]

im using rivatuner and have manually set my fan speed to 35% i know the Card by default on boot up and restart of OS fires the fan speed to 100% for a few seconds, but i also get the fan speed at 100% at random times while on desktop
is this normal?

 

[kmufc77]

i must be the only 4870 owner with this then?

 

[LoadsaMoney]

I think its normal for the 4870, im sure ive read that it does randomly go to 100% when its idle.

 

[RavenXXX2]

Mne never speeds up to 100%, even at start up, although i do have the updated asus bios with the great fan profile.

 

[kmufc77]

I think its normal for the 4870, im sure ive read that it does randomly go to 100% when its idle.

Thanks for your reply loadsa just worrying i had a faulty card

 

[kmufc77]

Mne never speeds up to 100%, even at start up, although i do have the updated asus bios with the great fan profile.

be grateful if you could explain how to update the bios to the new asus bios and where to get it from please

 

[flinco]

same happens to me, dont think its anything to worry about, only for 1-2 secs

 

[RavenXXX2]

Below is a link to a post detailing how to flash your card in windows, though you can do it through DOS, links below for ASUS bios and ATIwinflash. If you do decide to flash, back up your original bios with GPUZ,link below.





http://forums.overclockers.co.uk/showpost.php?p=12187912&postcount=15


http://www.mvktech.net/index.php?option=com_remository&func=fileinfo&filecatid=2733

http://www.techpowerup.com/downloads/1122/mirrors.php

http://www.techpowerup.com/downloads/1153/mirrors.php

 

[kmufc77]

Below is a link to a post detailing how to flash your card in windows, though you can do it through DOS, links below for ASUS bios and ATIwinflash. I fyou do decide to flash, back up your original bios with GPUZ,link below.





http://forums.overclockers.co.uk/showpost.php?p=12187912&postcount=15


http://www.mvktech.net/index.php?option=com_remository&func=fileinfo&filecatid=2733

http://www.techpowerup.com/downloads/1122/mirrors.php

http://www.techpowerup.com/downloads/1153/mirrors.php

Thanks for the links , if i flash to the new bios and all goes wrong how would i flash back to orginal bios?

 

[RavenXXX2]

You would need a spare GFX card to flash your 4870 but it wont go wrong if you follow the instructions.

 

[pingwing]

Id leave it personally, the strange random fireup of the fan happens on mine too. It supprised me at first but its not much of a bother unless your rebooting every 20 mins...

 

[[TW]Fox]

This fan thing sounds hugely annoying - do all 4870's have fans which randomly spin up?

 

[Jamous]

Mine does it on startup only, seems like a pre-flight check lol, but once in windows it remains at the speed of the profile I'm running.

 

[projects14a]

Mine only did it on start up, but since manually setting the fan speed, it does it just before the pc switches off (assuming the bios regains control from the Catalyst). Its not that annoying unless you a super sensitive person, lasts 2 seconds max and i feel its reasuring as i know its still working

 

[Credo]

Mine does it once once into Vista, not too long after Vista has loaded. Makes me jump!

 

[Retro-R]

Mine does it once once into Vista, not too long after Vista has loaded. Makes me jump!

My Powercolor 4870 does the same, it doesnt spin the fans to 100% on boot though they do speed up a little maybe 10-15% only noticed when I booted up with the side panel off the other day,its dead quiet until vista is loaded up then a quick 1 sec burst of full power and then silence again.



Dave