1 Fan 2 rpm monitor ???

[HelloPsp]

4 Channels I need to use for monitor rpm only I can mod cable same picture is ok ??? (Sorry I bad ENG)
Thank.

 

[richaron]

Nice picture. You want to monitor the RPM of the four PWM fans using the fan controller?

Yes I think that would work, but I am not certain. I depends on how the Lamptron controller is designed.

 

[BonzaiDuck]

Nice picture. You want to monitor the RPM of the four PWM fans using the fan controller?

Yes I think that would work, but I am not certain. I depends on how the Lamptron controller is designed.

I can confirm this would work if using the mainboard 3-pin plugs for the tach cables of any 3-pin or 4-pin fans.

My thoughts about this, however, are fairly practical and clear.

In previous posts, I'd touted a Swiftech 8W-PWM-SPL splitter device (~$10) for powering PWM devices from the PSU, and controlling them from a single motherboard PWM port (preferably the CPU or CPU_OPT fan header).

In that particular case, all devices (pumps or fans of various sizes) are controlled thermally through the PWM signal wire (not the tach wire). The device connected to the designated "#1" port on the Swiftech device can also be monitored through the motherboard PWM-fan port, but the remaining (up to 7) devices cannot be monitored through the Swiftech device. So one might attach the tach wires for some number of the remaining devices to the 3-pin tach-wire-pins of the motherboard.

This plan would still be limited by: (a) a need to use 3-pin fans; and (b) the number of remaining 3-pin fan headers.

In the event that you use another after-market [front-panel, etc.] controller for the 3-pin fans with remaining ports for monitoring, it should work. I can't GUARANTEE it: and I'd want to be more familiar with the controller. But it should work.

Now. That being said. You would be wise to monitor only one (1) each of any set of devices of the same make, size and spec -- assuming that you might occasionally check the remaining devices during periodic computer cleaning and maintenance to assure that they are simply running properly. This would assure better coverage of different devices with your monitoring options.

One reason I would try and avoid use of fan-controllers that do not communicate with the motherboard or require extra software if they do, is that some better motherboards allow thermal control of more than 50% of the fan-headers (3-pin as well as 4-pin PWM) that would otherwise require analog/digital-sensors installed in the case and connected to the controller.

Use of more PWM fans and fewer 3-pin fans means that you can more effectively use a device like the Swiftech. Further, remaining 4-pin fan-headers on some motherboards (such as those made by ASUS) provide thermal control of either 3-pin or 4-pin-PWM fans connected to them. This means that dissimilar fans or devices can still be controlled AND monitored from the motherboard, while a string of identical fans can be controlled and powered from the PSU with the Swiftech device, and this same string can at least have one unit that is also monitored of the CPU_/[OPT]_FAN port.

This is another reason to avoid using too many fans in an "overkill" configuration. It not only consumes extra power, but adds to the complexity and ability to control and monitor all the fan or pump devices.

 

[HelloPsp]

Thanks everyone. :thumbsup:
Now I wait Lamptron FC5V3.

 

[BonzaiDuck]

Just an afterthought, and I don't know how it would be received.

I've used a few "manual" controllers like the Lamptron. Looking at a review of the device at Overclockers.net, I'm surprised people are still using these types of devices: the review date is 2013.

People have different preferences, wants and needs. One might use such a device to initially set the speed of fans and monitor them thereafter. And the 30W/channel spec is good for this type of device.

But I don't want to be fiddling with knobs every time certain fans "need more speed" -- I want all my fans to be thermally controlled, even if the only factor for thermal control is the CPU temperature.

So -- if you plan to deploy a dozen 3-pin fans, I guess this is a solution. Otherwise -- use a minimum-number fan strategy and use the new motherboard features.

 

[HelloPsp]

FC5V3 I get about 3 week (USA to Thailand).
4 fan PWM I use "Fan Xpert 2" features control speed from asus motherboard and
2 fan on top my case control speed from FC5V3.
I don't like see fan speed from software.

Total fan is 7.
-CPU and CPU OPT = 2 (control speed from asus motherboard).
-Front = 2 (control speed from asus motherboard).
-Back = 1 (control speed from asus motherboard).
-Top = 2 (control speed from FC5V3).

^.^

 

[BonzaiDuck]

FC5V3 I get about 3 week (USA to Thailand).
4 fan PWM I use "Fan Xpert 2" features control speed from asus motherboard and
2 fan on top my case control speed from FC5V3.
I don't like see fan speed from software.

Total fan is 7.
-CPU and CPU OPT = 2 (control speed from asus motherboard).
-Front = 2 (control speed from asus motherboard).
-Back = 1 (control speed from asus motherboard).
-Top = 2 (control speed from FC5V3).

^.^

Well, you bought the Lamptron. It's a $100 item, but maybe useful to your purpose.

Given the fact that you don't like to view fan speeds in software, you could use the Lamptron simply for the yellow monitoring wires, I think. You could still control the fans/duty-cycle from the motherboard as you seem to be doing.

But -- just a thought. Look at this $10 device:

http://www.sidewindercomputers.com/sw8waypwmsps.html

Up to eight PWM fans (they must all be PWM) are powered directly from the PSU, but controlled from a single PWM fan header like CPU_FAN or CPU_OPT_FAN. If the fans are the same or different, you'd only be able to monitor one of them off the motherboard port providing the PWM signal. But I'm quite sure you could monitor all the rest on the Lamptron by connecting the yellow tach wires to the Lamptron. If there were free motherboard ports and you had enough of them, you could monitor all such connected fans through the motherboard.

Using the Swiftech device would mean you'd then have at least one more PWM motherboard port free. Ultimately, I'd think you could pretty much control every single fan from the motherboard.

But you said you don't want to monitor them through the software. If you simply monitored them through the Lamptron, I suppose it defeats having the rheostat knobs to control them.

But this is all about your preferences -- not mine.

I also use the Fan Xpert software, and scale the fan speeds by the CPU temperature.