power fan below threshold! :(

cincy · 01-04-2005, 02:30 AM

Yes the power fan sensor is connected to the mobo. Pc probe gives readings for all and the status is eh okay, UNTIL i put the computer into standby mode. As soon as i do that and come back it tells me that the "power fan below threshold". I simply reboot, the warning is gone and status okay...I can leave it alone all day long, play hard gaming all day long, no problems. NO problems... only when I put the computer in to standby mode. I cant figure it out....i know i know just turn it off if everything is fine...I cant. I just want to fix it :)

amd athlon 64 3400+
k8n-e deluxe mobo
1 gig corsair value select 2x512
6800 gt oc vid
120 gig wd hd
420watt thermaltake psu

Note: Chassis fan is not monitored because it is not hooked up to mobo, they are plugged in directly to power supply....

HELP!

Thanks

Cincy

Valtelino · 01-04-2005, 04:27 AM

I'm guessing the PSU has one of those temp sensing fans on it.
The PSU Fan adjusts its revs based on the temp of the air flowing past it. When it goes into standby, it's not working as hard. The case temp drops. The PSU fan drops it's revs, because it isn't needed so much, then it triggers the rpm threshold sensor on the mobo.
Check the amount of air pushed out by the psu fan when the system is working, then compare it 15 minutes after going to standby.
I'm betting the flow is greatly reduced.

Oceanborn · 01-04-2005, 06:53 AM

The exact same thing happens to me, once you go into standby mode they do not go slower...they actually STOP...so if you close your PC probe and restart it again you should get the normal readings.

cincy · 01-05-2005, 02:17 AM

Thanks for the replies so far, would appreciate more input if one has the knowledge.

Thank you

johnnyasia · 01-05-2005, 09:01 AM

Quote:

Originally Posted by Valtelino

I'm guessing the PSU has one of those temp sensing fans on it.

I have an Enermax Noisetaker with a temp sensing fan, whenever the fan slows down, Asus Probe popped up that "fan below threshold" message. I unchecked the power fan in settings.

cincy · 01-05-2005, 02:44 PM

thanks for the input good people. So its safe to say that its a false alarm with the asus probe and that I can just turn off monitoring of my psu?

Thanks,

Cincy

Valtelino · 01-05-2005, 08:59 PM

IF you are confident that it is a variable RPM and/or temp sensing fan on the PSU, and you are still monitoring CPU & Mobo TEMP, it's perfectly safe to turn off the PSU fan monitoring, yes.
Bear in mind that a fan rpm monitor, is simply EARLY warning of possible overheating.

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01-04-2005, 02:30 AM	#1 (permalink)
cincy Registered User Join Date: Dec 2004 Posts: 34 OS: xp pro sp2	power fan below threshold! :( Yes the power fan sensor is connected to the mobo. Pc probe gives readings for all and the status is eh okay, UNTIL i put the computer into standby mode. As soon as i do that and come back it tells me that the "power fan below threshold". I simply reboot, the warning is gone and status okay...I can leave it alone all day long, play hard gaming all day long, no problems. NO problems... only when I put the computer in to standby mode. I cant figure it out....i know i know just turn it off if everything is fine...I cant. I just want to fix it :) amd athlon 64 3400+ k8n-e deluxe mobo 1 gig corsair value select 2x512 6800 gt oc vid 120 gig wd hd 420watt thermaltake psu Note: Chassis fan is not monitored because it is not hooked up to mobo, they are plugged in directly to power supply.... HELP! Thanks Cincy __________________ AMD 3400+ Clawhammer Asus k8n-e Deluxe BFG 6800 GT/ 120 gig WD HD/ Thermaltake 420watt Corsair Value Select 2x512 2.5/3/3/8 1T

01-05-2005, 02:17 AM	#4 (permalink)
cincy Registered User Join Date: Dec 2004 Posts: 34 OS: xp pro sp2	Thanks for the replies so far, would appreciate more input if one has the knowledge. Thank you __________________ AMD 3400+ Clawhammer Asus k8n-e Deluxe BFG 6800 GT/ 120 gig WD HD/ Thermaltake 420watt Corsair Value Select 2x512 2.5/3/3/8 1T

01-05-2005, 02:44 PM	#6 (permalink)
cincy Registered User Join Date: Dec 2004 Posts: 34 OS: xp pro sp2	thanks for the input good people. So its safe to say that its a false alarm with the asus probe and that I can just turn off monitoring of my psu? Thanks, Cincy __________________ AMD 3400+ Clawhammer Asus k8n-e Deluxe BFG 6800 GT/ 120 gig WD HD/ Thermaltake 420watt Corsair Value Select 2x512 2.5/3/3/8 1T

01-04-2005, 04:27 AM	#2 (permalink)
Valtelino Member Join Date: Sep 2004 Location: BrisVegas Australia Posts: 173 OS: WinXP	I'm guessing the PSU has one of those temp sensing fans on it. The PSU Fan adjusts its revs based on the temp of the air flowing past it. When it goes into standby, it's not working as hard. The case temp drops. The PSU fan drops it's revs, because it isn't needed so much, then it triggers the rpm threshold sensor on the mobo. Check the amount of air pushed out by the psu fan when the system is working, then compare it 15 minutes after going to standby. I'm betting the flow is greatly reduced.

01-04-2005, 06:53 AM	#3 (permalink)
Oceanborn Registered User Join Date: Oct 2004 Location: Canada Posts: 151 OS: Windows Vista	The exact same thing happens to me, once you go into standby mode they do not go slower...they actually STOP...so if you close your PC probe and restart it again you should get the normal readings.

01-05-2005, 08:59 PM	#7 (permalink)
Valtelino Member Join Date: Sep 2004 Location: BrisVegas Australia Posts: 173 OS: WinXP	IF you are confident that it is a variable RPM and/or temp sensing fan on the PSU, and you are still monitoring CPU & Mobo TEMP, it's perfectly safe to turn off the PSU fan monitoring, yes. Bear in mind that a fan rpm monitor, is simply EARLY warning of possible overheating.