Any CNPS9500AT Users?

I posted a message very similar to this one on the Cooler & Heatsinks - Overclocking forum. I received one response which wasn't helpful. So, I would like to try this forum.

A while back, I had asked about Pentium D820 temperatures and received very helpful comments. I have now decided I would like to add the Zalman CNPS9500AT CPU cooler. Does anyone here presently use one of these units?
I would like to know if the CPU fan has a 3 or 4 pin connector. I am currently using a 4 pin connector and would think I should continue in this manner for proper automatic operation.

I know for a fact the CNPS9500LED unit has a 3 pin connector, but I have been led to believe the AT unit has a 4 pin connector ...... just want to make certain??

He is asking about power pins... not performance.

My 7700-CU is 3 pin, and I remember seeing 9500 is 3 pin.

What MB are you currently using?

NewEgg has the AT version, but doesn't show power pin:

9500 AT

I'm guess 3 pin still, since it is a fan without the led light.

Edit:



Even Zalman's website doesn't say:

Zalman website 9500 AT

ROTFL..

Even the installation animation doesn't show plugging in the power.

Edit:

Took forever to get the PDF file. The picture there looks like a 4 pin, very hard to say what it is. I would assume 3 pin

Well... hes looking for a 4 pin, which I'm a lil confused at.

The one your recommending is 3 pin.

Just wish he stated what MB he's using.

Only found one pic that showed the back end, where the power cord is all tied up and tucked in.

It looks like 3 wires... yellow, blue, and green.

Hard to say if it is 4 pin. I guess that product is too new atm, and just doesn't specify 3 or 4 pin.

This was the image I zoomed up on in Paint Shop:



Edit: Doh.. I guess LithiumSunset just posted, saw it after I posted this. Still kinda funny how the PDF shows 4 pin... hehe

I have one on a 4 pin Intel board and it works fine. One of the pins doesn't get used that's all.

I couldn't find your board, but on Intels site this is what I found:

d945gpm

Clearly shows 4 pin. Couldn't find any thing on "D945GPR".

As for the PDF, the Pin out for the 4 pins:

Hope that helps.

No... you just loose the "4 FAN_CONTROL".

The AT will not have a fan mate (some people like it, others dislike it).

You will be able to monitor the RPMs. Its just that you won't be able to control the speed, I think. Unless you get the LED 9500 with fan mate.

It will just run at full RPMs, but the fan should be fairly quiet.

Well for starters... all my systems are 3 pin (:lol: even my P3 800 system). So you are asking someone who isn't using a 4 pin setup. And my Q-Fan in the bios is disabled, so I run my CPU fan at max RPM.

Basically you have pins 1-2 for power. 3 is the Tach, for RPM readings. Pin 4, the Fan control suggests that the bios controls the fan speed through some kind of resister/software, which monitors the temp.

So... when your temps are low, the fan speed is prolly near 1000 rpms or lower. When the temp hits a high number, say 60C then it kicks the speed up to max RPMs.

Fan mate hooks up with the fan 1st, then to the MB. Fan mate is just a nob, like a volume control. You turn it all the way down, that is the lowest RPMs you get, turn it up.. then you have max RPMs.

Looking at my 3 pin (Zalman 7700).. the 1st wire is black (ground) 2nd red (12v) 3rd is yellow (tach). As long as you know which is the number 1 pin, you should be able to use any 3 pin fan.

So, it is up to you to figure out how your bios controls the stepping, if it is really needed. I don't think you do, since the software only kicks in high RPMs when your system is hot.

If you want to run it cool the majority of the time, you can just hook it up and run it at full RPM. I've read most people complain their processors run too hot. I won't get into temp accuracy, but it just everyones general preference, is usually different from what they expect.

I have two 9500s, one on an Asus mobo, one on a DFI. Both allow me to watch the fan rpm and the mobo software appears in both cases to regulate the fan speed as my settings have requested.

UPDATE! UPDATE!

I finally got an official reponse from the Zalman website:

The Zalman engineer stated the CNPS9500AT CPU cooler does come with a 4 wire / 4 pin connector. It does allow for PWM control.

The CNPS9500LED doe not come with a 4 wire / 4 pin connector. It has a 3 pin connector and also ships with a fan mate speed controller.

Maybe this will help someone else in the future. I placed the order for the CPU cooler this morning!

There ya go and good deal. After looking a little closer at mine, I did discover that mine is the LED version. What's funny is, it does say CNPS9500ATxx on the back of the fan though. Threw me off a bit. But anyway, it still works on my Intel boards though and it works well.

ClueLess,

I feel you are absolutely correct in your statement.

However, I was searching for a fan which would be automatically adjusted according to the demand .......... in other words, I wanted to maintain the system as it was shipped. Zalman support assured me of two things:

1- The "A" in CNSP9500AT signifies automatic

2- The presence of the 4th wire or 4 pin connector signifies the fan has pulsed width modulation (PWM) control, which also signifies the fan speed is being controlled automatically.

Thanks to all for responding!