Fan spins up after waking from sleep

Sudden

Sudden

Sudden

Soldato
Joined
15 Nov 2005
Posts
2,955
Location
London
As thread title really. If I click on 'Sleep', it works fine. But when I wake it up, the fan (not quite sure which. I think it's the PSU but not 100% sure.) spins up really loudly. Much more than normal. If I reboot however, the problem goes away. It only comes up if the computer is woken from 'Sleep'. Not quite sure why this happens and was wondering if anyone here had any ideas. Never really seen/heard the fans spin up this loudly before. I did a quick google but most of the solutions were regarding the fans spinning up during sleep rather than after. Specs as below -

x6800 dual core running at stock
Zalman 9500 (I think) CPU cooler
2 x Akasa amber case fans
2x1 gb C4 6400 corsair ram
900W tagan psu
EVGA 250 GTS
EVGA 780i f.t.w. edition
Win 7 pro 64 bit
 
I would make sure you have the latest bios update for your board, because I had probs with sleep on my pc. When it resumed from sleep the cpu temp would be in the minus figgers, but now abit has sorted the prob with a bios update.

I think when your resuming from standby your cpu fan is going at full speed, and if this is the case, a bios update should fix it, and if theres no updates yet for your board, keep checking every few weeks. I think it took abit 2 updates to fix my sleep prob.

I think sleep is awsome, I never reboot or shutdown my pc now, just when I blow the fans out or update windows..... Its like turning the tv on and off.
 
I checked as you suggested and there was one BIOS update which I did. It fixed some other issue with the multiplier not being unlocked as it should be, but the sleep problem is still there :( I checked Hardware monitor and it seems that the CPU fan usually spins at about 2500 but on waking up from sleep, goes up to almost 5000.

Should I just wait for another BIOS update, or do you think there's any point in e-mailing EVGA? Alternatively, I could use some other software like Speedfan or something to forcefully decrease the speed after it increases? or is that a bad idea?
 
I would keep checking the site for bios updates, you could contact EVGA to let them know of this prob.. I just used shutdown on my pc, until abit had released a update to fix my sleep problem.
 
Does it stop spinning after a minute or so? I would have thought it is because some of the components are being worked quite hard as the machine comes out of sleep mode.
 
D-Ranged said:
Does it stop spinning after a minute or so? I would have thought it is because some of the components are being worked quite hard as the machine comes out of sleep mode.
Click to expand...

The cpu would be cold when it comes out of sleep, plus it only takes like 3secs to resume from sleep

I would use hibernate or shutdown untill theirs a bios update to fix it.
 
:( Guess so. It seems that on the EVGA forums that this exact problem hasn't come up, but a few people using the 780i non-f.t.w. edition have had a problem with sleep too. If they use sleep, on wake up the fans spin up and the entire system hangs. Thankfully I haven't had that.

Yea, i'l just use shutdown. It's not a big deal since I only recently thought i'd try out sleep and liked it, but haven't become used to it so not bothered about missing it :p

Thanks for your help :)
 
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