Search found 36 matches
- Wed Jan 16, 2008 10:07 am
- Forum: Deals, Vendors and Classifieds
- Topic: FS: PWM->analog Voltage Controller Circuit for pumps/fans
- Replies: 17
- Views: 23230
Sorry, haven't visited in quite some time...
I haven't been to this site for almost a year, but I'm back. Sounds like there is a constant trickle of interested buyers. I've sold 6 of these to date (never heard a complaint), and still have 24 PCBs available. I'm short on heatsinks, but I could get the parts from futurlec in about 2 weeks, in wh...
- Thu Dec 21, 2006 7:46 am
- Forum: Deals, Vendors and Classifieds
- Topic: FS: PWM->analog Voltage Controller Circuit for pumps/fans
- Replies: 17
- Views: 23230
- Fri Sep 15, 2006 6:08 am
- Forum: Deals, Vendors and Classifieds
- Topic: FS: PWM->analog Voltage Controller Circuit for pumps/fans
- Replies: 17
- Views: 23230
I'm not sure I understand what you mean. My original usage was inside my Shuttle SD31P, which is an Intel chipset. A recent buyer has had success with one of the AMD chipsets.gb115b wrote:out of interest, have you tested this on any pwm supporting intel motherboards (to see if the fan can still be controlled)
- Tue Sep 12, 2006 5:49 am
- Forum: Deals, Vendors and Classifieds
- Topic: FS: PWM->analog Voltage Controller Circuit for pumps/fans
- Replies: 17
- Views: 23230
how much would it be for you to ship 1 to the uk. also. strictly speaking this is a pwm-> analog dc convertor (not controller) it relies on the m/b for control right? Indeed, you are correct. Although, most people are shopping for a "fan controller", not thinking about the fact that the MB has sens...
- Thu Sep 07, 2006 6:26 am
- Forum: Deals, Vendors and Classifieds
- Topic: FS: PWM->analog Voltage Controller Circuit for pumps/fans
- Replies: 17
- Views: 23230
- Thu Sep 07, 2006 6:25 am
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
Hi dinofx, did you say you has some of these for sale? :) Yes, we should be discussing potential purchases on my original thread in the classified forum. http://forums.silentpcreview.com/viewtopic.php?t=31684&highlight= I think it is valid to discuss usage/design/behavior/results, etc. in this thre...
- Wed Sep 06, 2006 12:51 pm
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
i'd be interested in a few? i'm just getting my new core duo system... so would like one for the cpu and ati are using 4 pin pwm in their latest series of cards... I have some available. What are your plans for the ATI card? Are you replacing the stock cooler (I'm assuming it's PWM) with an older 3...
- Wed Aug 23, 2006 7:48 am
- Forum: Fans and Control
- Topic: Fan Headers?
- Replies: 19
- Views: 7253
- Wed Aug 23, 2006 7:28 am
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
dinofx -- Also, you should know that I've seen in a recent Gigabyte(?) AM2 board fan controls in the BIOS that includes a switch between PWM and voltage control. This is on a board with a 4-pin CPU fan header. This sounds like welcome flexibility if you are just controlling fans, which typically on...
- Tue Aug 22, 2006 7:04 am
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
I have been using this circuit without problems for many months. Another modder recently used one in his AMD-based motherboard. It worked perfectly, although that particular motherboard required a fan with tachometer signal or else you could not reduce the speed. I have 3 assembled boards ready for ...
- Mon Jul 10, 2006 7:09 am
- Forum: Fans and Control
- Topic: The new Evercool quiet, low RPM fans
- Replies: 5
- Views: 3714
- Sat Jul 08, 2006 3:14 pm
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
- Thu Jul 06, 2006 5:55 pm
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
- Thu Jul 06, 2006 7:47 am
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
Just curious, why two-pin headers instead of three-pin? One nice feature of the NMT-2 and -3 is pass-through of the RPM sense signal on the third pin. That way you can use standard fan connectors. Your device with 3-pin headers would be ideal for PWM motherboards and standard fans (no need to repla...
- Thu Jun 22, 2006 10:38 am
- Forum: Fans and Control
- Topic: speedfan help - fans speed up and down too quickly
- Replies: 5
- Views: 4733
The algorithm SpeedFan uses for adjusting speed is one of the most brain-dead approaches I have ever seen. It never changes by more than the delta value. You can't assign different deltas to different fans. For example, I have one fan that goes from 24-60%, and another that goes from 25-90%. The fir...
- Sat Jun 17, 2006 7:18 am
- Forum: Fans and Control
- Topic: Level shifter question
- Replies: 6
- Views: 3463
- Tue Jun 13, 2006 5:40 am
- Forum: Fans and Control
- Topic: 4 pin quiet fans?
- Replies: 6
- Views: 4450
The JMC fans are pretty quiet. I can't really hear my 120mm until it reaches about 1100 RPMs. I think it goes up to about 2700 rpms. My only complaint is the size of the dead spot in the middle of the fan. Compared to the really noisy, silver, SilenX fans, the motor in the center of the JMC fan is h...
- Mon Jun 12, 2006 11:00 am
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
- Fri Jun 09, 2006 6:40 pm
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
- Fri Jun 09, 2006 9:01 am
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
- Thu Jun 08, 2006 6:41 pm
- Forum: Fans and Control
- Topic: M-Cubed miniNG......mini review.
- Replies: 13
- Views: 7909
- Thu Jun 08, 2006 6:05 am
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
The FanAmp has a connector to a MB fan header, a header that has MB fan control. If your board can automatically adjust fan voltage from 7-12V, the fan amp can use that signal to automatically send an analog voltage to your fan. It gets power from a molex connector, and has a temp sensor if your bo...
- Wed Jun 07, 2006 11:54 am
- Forum: Fans and Control
- Topic: M-Cubed miniNG......mini review.
- Replies: 13
- Views: 7909
Perhaps this device is using an N-channel MOSFET instead of the less popular P-channel. This would mean that in analog mode, the fan's ground is reaised instead of its postive voltage lowered. This would explain why the tachometer fails, as the fan would no longer have a true ground. Can one of the ...
- Wed Jun 07, 2006 11:14 am
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
Here is a review of the MiniNG . It has some drawbacks, including difficult configuration, slow response time, and tricky temp. probe placement. I know that my Pentium 4 with EIST and SpeedStep can change thermal output considerably over a very short period of time. I didn't get a good feeling for h...
- Tue Jun 06, 2006 5:11 pm
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
Neat idea, I like it. Is the amplifier (LM741) set up to integrate the pulses and provide a proportional output, with a MOSFET to provide extra current? Also, soldering 1206s isn't all that difficult, if you have a reasonably good iron, tweezers, and solder-wick to clean up any mistakes. Of course,...
- Tue Jun 06, 2006 4:50 pm
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
I have a few of each. The Fan-Amp costs less than your unit....the miniNG costs slightly more. Neither require any software to run, in fact don't come with any. They use their temp sensors to control fan speed.....you cannot read the temps of these sensors. Those sound similar. The only difference ...
- Tue Jun 06, 2006 9:10 am
- Forum: Watercooling
- Topic: WHOA!!! check out how zalman will beat them all :)
- Replies: 20
- Views: 12426
- Tue Jun 06, 2006 7:51 am
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
I admire your ability to solder those surface mount resistors. However I doubt many modders attempting to assemble a kit, would find it so easy. Ruin one and finding another would be difficult. Which brings up the cost of an assembled unit...not bad. But you are competing with some devices with sim...
- Mon Jun 05, 2006 7:42 pm
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
- Mon Jun 05, 2006 7:41 pm
- Forum: Fans and Control
- Topic: PWM-->Analog Fan controller for conventional 3-pin fans
- Replies: 42
- Views: 31629
Looks pretty good - am I right in thinking this does a similar job to the attenuator available with the T-balancer to smooth out PWM into a more analogue voltage signal? If so that's exactly the kind of thing we need more of (IMO) to fix PWM controllers. Do you have any plans to market these, and i...