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SpeedFan: Does it work?

D

DougWD

Limp Gawd
Joined
Sep 4, 2005
Messages
502
I set Fan 01 speed and CPU temp and all that in configuration, then checked auto, and nothing happens. Speed is higher than it should be aka settings in SF, and temps are lower, aka Speedfan, than they should be to kick up the fan speed.

What do you have to do to get this program to slow down and sped up yuor fans in relation to heat?
 
only works if the motherboard supports fan controls and if the fan is a PWM fan using a 4 pin connector on the motherboard..
 
Go into advanced options, make sure that each fan speed is set to be regulated by the program ("Software-controlled") and make sure to check "remember it." Then go under the configuration menu and make sure the "Automatically Variated" box is checked for each speed you want to use. After that, you need to select which temperature sensors control which speeds, and set the desired temperature (fans speed up and slow down to maintain that temperature for that part/sensor) and warning temperature (automatically forces all fans controlled by that temperature sensor to 100% should it reach the designated warning temperature). Let me know if that wasn't clear.
 
It was clear. I read the directions too, believe it or not. Then got it running fine. One thing I need to know. I have two fans, one is a sysfan 3 pin and the other is the Power fan 4 pin. It isn't changing the speed of those fans. Why is that?

thanks for your help. It was awesome last night when I got it to work. My CPU under load actually saved 3C since the CPU fan is now speeding up to full speed along with other fans in the case "Y'd" to the CPU header.
 
DougWD said:
It was clear. I read the directions too, believe it or not. Then got it running fine. One thing I need to know. I have two fans, one is a sysfan 3 pin and the other is the Power fan 4 pin. It isn't changing the speed of those fans. Why is that?

thanks for your help. It was awesome last night when I got it to work. My CPU under load actually saved 3C since the CPU fan is now speeding up to full speed along with other fans in the case "Y'd" to the CPU header.
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Glad to hear you got it somewhat working :). On my P55M-UD4 (Gigabyte board as well), the CPU 4-pin fan header and the Sys2 4-pin fan header can both be controlled by SpeedFan, but the Sys1 3-pin fan header is strictly read only. My assumption was that the 4-pin headers are wired for PWM control and work fine, while the 3-pin are only wired for RPM monitoring. Generally, the PSU/Power fan header on the motherboards are RPM-monitoring only since the PSU controls the fan speed based on its heat load. The X58-UD5 is a top of the line motherboard, there must be another PWM-supporting fan header on the board so that you don't have to daisy chain everything through the CPU fan header. One caveat, don't over load motherboard fan headers. I remember reading that a safe maximum load is 6W, so up to two standard case fans or one powerful fan per header.
 
You can have up to 5. As long as you don't go over 1amp. There is one other PWM fan header. However, I thought Speedfan originally could do voltage throttling?
 
DougWD said:
You can have up to 5. As long as you don't go over 1amp. There is one other PWM fan header. However, I thought Speedfan originally could do voltage throttling?
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I could have read wrong, good to know. My guess is there's an electric incompatibility and that the chip isn't connect to those headers for anything beyond sensor information. In all honesty I don't know, and I can only state what I've seen.
 
I benched my rig today and watched Speed Fan as I plugged and unplugged fans, and watched Everest for temps.

Gigabyte X58 UD5:

CPU and System Fan 2:
These are the only 4 pin headers (PWM).

PWR FAN: Monitors speed only

Sys Fan 01: Monitored only
Sys Fan 03: Not monitored
North Bridge fan riser: Not monitored

Good news: Both the CPU and System 02 risers will control 3 pin fans. I plugged in a 3 pin Gentle Typhoon and the MB throttled the speed on it. Actually, Speed Fan did, but Speed Fan can only do what the MB does, In think. Is this wrong?

I any event, the GT fans will throttle when plugged into a Y splitter or directly into a riser that can be throttled, even though they are 3 pin fans.

This corresponds to Speed Fan in that only Speed 01 and 02 do anything. Speed three does nothing to any fan, although I do not have anything plugged into the Northbridge or SYS 03 Risers. Perhaps SF could change those, since there is a Speed Three showing in SF Option?

Maybe someone else can check?

So, between CPU and System Fan 02 you can have up to five fans each, perhaps 4.

My only problem is that the MB temperature doesn't correspond to CPU temp. This means for it to throttling with the CPU is impossible. The upside is that if you let the MB do it w/o speed fan, it runs at about 490RPM all the time. With speed fan, I can tell it to never go below 70%.
 
DougWD said:
This corresponds to Speed Fan in that only Speed 01 and 02 do anything. Speed three does nothing to any fan, although I do not have anything plugged into the Northbridge or SYS 03 Risers. Perhaps SF could change those, since there is a Speed Three showing in SF Option?

Maybe someone else can check?

So, between CPU and System Fan 02 you can have up to five fans each, perhaps 4.

My only problem is that the MB temperature doesn't correspond to CPU temp. This means for it to throttling with the CPU is impossible. The upside is that if you let the MB do it w/o speed fan, it runs at about 490RPM all the time. With speed fan, I can tell it to never go below 70%.
Click to expand...
You can have any fan speed correspond to any temperature. On my motherboard, Speed 1 refers the CPU 4-pin speed, Speed 2 to the Sys2 4-pin speed, and Speed 3 to the Sys1 3-pin monitoring only. I have both Speed 1 and Speed 2 controlled by the CPU Core Temp alone (Desired is 50, Warning is 70).
 
I have used SpeedFan with my ASUS P6T Deluxe Palm and it reports the same temps as ASUS's own Palm OC utility that came with the board.

Works good for me.
 
Mr. K6 said:
You can have any fan speed correspond to any temperature. On my motherboard, Speed 1 refers the CPU 4-pin speed, Speed 2 to the Sys2 4-pin speed, and Speed 3 to the Sys1 3-pin monitoring only. I have both Speed 1 and Speed 2 controlled by the CPU Core Temp alone (Desired is 50, Warning is 70).
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Oh yeah I forgot about that. So I can put Speed 2 (MB temp) under CPU temp and the CPU temp controls both, right?
 
DougWD said:
Oh yeah I forgot about that. So I can put Speed 2 (MB temp) under CPU temp and the CPU temp controls both, right?
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Exactly. I have Speed 1 (controls CPU fan speed) and Speed 2 (controls front intake fans) checked off under all four Core Temp sensors. Each Core Temp sensor is set to 50C desired and 70C warning. Speed 1 range is 50%-100% (Noctua fans are low speed and very quiet), Speed 2 is set to 35-60%. Under options I have the increase rate at 5% (default is 10%, I like it to be more gradual). Using these settings, if any one of the cores go above 50C, the fans start to increase in their set range until all cores stay below 50C again. If they continue you go above 50C (which is usually the case, for instance, I opened and started playing a game), they will continue to rise until their set maximum in the range. Should any one of the cores ever hit 70C, the intake fans will increase from 60% all the way to 100% immediately until temps fall below 70C again :).
 
Pretty much exactly what I did tonight.Works great. I put a Gelid TCH fan in the blow hole, since it's on PWR FAN riser. So since it has it's own thermal probe, it throttles itself.

Later this week I get three more PWM Y spliiters. Then I will hook everything to the two PWM risers. 7 fans total, 3 on one 4 on the other. The whole box will be controlled then, as long as my Cooler Master front fan will adjust using the 4 pin riser, since it's only three pins.

Total control over all fans. It's something I've wanted forever.
 
DougWD said:
Pretty much exactly what I did tonight.Works great. I put a Gelid TCH fan in the blow hole, since it's on PWR FAN riser. So since it has it's own thermal probe, it throttles itself.

Later this week I get three more PWM Y spliiters. Then I will hook everything to the two PWM risers. 7 fans total, 3 on one 4 on the other. The whole box will be controlled then, as long as my Cooler Master front fan will adjust using the 4 pin riser, since it's only three pins.

Total control over all fans. It's something I've wanted forever.
Click to expand...
Sounds like a good plan, hope everything goes according to it.
 
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