I have had a asus p5ad2 premium mobo for about 8 months.Im always tring to make minor improvements to my system.At the moment i am wanting to install a new cpu heatsink fan.I have a coolermaster hyperX 48.The fan that came w the heatsink is a 3 pin connection(1-ground,2-power,3 rpm/tach wire).The fan runs at 1 speed(1400 rpm)and i would like a higher 92mm rpm fan and be able to use the 4th pin on mb.The 4th pin is a pwm wire,used to adjust the speed of a fan.As the hyper48 is a good hs ,it still seems to run a bit hot 4 my taste(42c)on average,even though the p5ad2 is a lga775 socket mobo and i know they tend to run hotter anyway.The problem is that i cannot find anywhere a fan that has a 4 pin connector for connection to mobo.Either they have 3 pin conn or a molex for connection to ps and a tach wire 4 rpm's.Am i just lookin at this all wrong,i just want to be able to control fan rpm's based on the mobos internal thermistor for cpu temp.Please help b4 my display ruins my eyes tring to search the web 4 a answer to this question.Seems like i should have found something on this topic but ive had no luck,Thanks in advance.

How about this one (http://www.newegg.com/Product/Product.asp?Item=N82E16835106046) and here's (http://www.thermaltake.com/coolers/jungle/rs/jungle512/cl-p0037jungle512.htm) the spec sheet at Thermaltake's site.

p.s. Here's (http://www.newegg.com/Product/Product.asp?Item=N82E16835185116) another.

I appreciate the help poppy but i was planning on keeping the heatsink and just replacing the fan.I have found some heatsinks w fans that would work(even the modified hyper48 has a 4 pin connection now),hopefully soon i can find a fan that will work if they even sell them without the heatsink?????

anyone????

I have the P5AD2-E Premium. My advice is don't sweat it...no pun intended. Even if you got a fan with a 4-pin connector , there's no guarrantee that it will work properly with PWM anyway (per Asus). The best option is to stay with your 3-pin fan and in the BIOS set fan control to DC (default). Then make sure that Q-Fan is enabled for that fan (this can only be done for the HSF and one other case fan that connects directly to the mobo). Q-Fan performs the same function as PWM, only differently. As temperature changes, the fan speed will be adjusted accordingly. It works quite well. On my system, the fan speed actually went down and so did the CPU and case temps, after enabling Q-Fan.

Hope this helps.

thanks pop pop,finally some help.I actually was looking around in the bios and did find the q fan and enabled it.2 probs i encountered though ,#1 my cpu fan on the hyper 48 is a 1400 rpm fan,guess i can just replace it with a higher RPM fan w adjustable RPM output(I think)saw one that went from 1400 to 3200 rpm,to much u think????Also i saw that w the q fan on my p5ad2 that 51celcius is as low as i could go w the temp setpoint for cpu??I would like to control it around 40c,overkill prob i know but cooler is better.Any suggestions?One last thing,i love ur avatar,i have a eagle tatoo on my back and collect them as well,do u mind telling me where u got that pic?Also im a redneck yuppie as well,im going deer hunting in about 6 hours,bow season opens in mississippi oct.1.:)Hotty Toddy Gosh al Mighty,who the hell r we,Flim Flam bim bam Ole Miss by damn!!!!!!!!!!!!
Appreciate the help!!

Nevermind on the avatar pop,save as is a wonderful thing,doohhhhh,unless u got some more good eagle pics.

1) #1 my cpu fan on the hyper 48 is a 1400 rpm fan,guess i can just replace it with a higher RPM fan w adjustable RPM output

You can replace it if you want and it's not doing the job. However, I have a Zalman 7700Cu HSF that has a fan with a maximum speed of something like 1800 rpm. It routinely runs around 1680, which is below the alarm threshold for many monitoring programs (and even the BIOS, I think). The Zalman fan on the HSF is 120mm, so it's huge and really it's is designed to run at a slower speed because it moves a lot of air just by virtue of its size. Higher RPMs mean more noise. Besides the Zalman HSF fan, I have 5 case fans, 2 PSU fans, and one GPU fan--my fans are all actually pretty quiet...in fact, I would say all those fans combined make less noise than one stock Intel HSF. And the great thing is I sure don't worry about heat. My CPU temp is 35C right now (just web surfing), but during the summer it would sit at about 40-42 at idle. If I start blowing the doors off with a game, like say FarCry, she'll heat up to about 50-55 (never higher) but cool down almost the instant I stop the game.

As for my avatar, it's something I "found". I'm a redneck, patriot, former military yuppy geek...so it just fit. I have it on my work laptop and on a widescreen in hi res, it looks even better. I've been told more than once that it would make a good tattoo.

Just one more thing pop,in my bios w q fan enabled the lowest temp setpoint for cpu is 51c,that just seems kinda high for a cpu stpt to me.U say ur running ( My CPU temp is 35C right now),was wondering how u get ur fan to run to try and maintain that setpoint(which is what i assume ur doing.Does the asus p5ad2-e have lower cpu temp setpoints than the p5ad2?I would like the new fan i purchase to run low speed at 35c and full speed at 55c.Prob try and find a 1400 to 2400 rpm fan.The 3600 rpm fan would be screaming im sure.what program u use for cpu temp monitoring,i have probe and AI booster installed.Do u mind also telling me where i can find that pic in high res???

the lowest temp setpoint for cpu is 51c,that just seems kinda high for a cpu stpt to me.

Not really. I had to go back and read the mobo manual for this. Keep in mind that I left mine at the default setting--whatever that is--and it works fine.

Now for the "not really" part. According to the mobo, the options (settings) available are based on the recommended Intel Fan Speed Control (FSC) settings. This board supports LG775 P4 Prescott CPUs--which just naturally run hot. With a stock Intel HSF, that CPU will nominally run at 44C (according to test data I've seen from reputable sources). What that means is that's pretty much the normal operating temp at idle with stock Intel equipment. Specs I've seen show that the maximum case temperature is 63.6C--the CPU can probably handle higher temps but that's the temp at which damage may occur and thermal events like crashes or system shut down might also happen. The thermal warning/shutdown temp setting is also somewhere in the BIOS, I think.

So if a normal idle with an Intel HSF is 44C, there would be no reason, by Intel's way of thinking, to crank up their HSF, which is already running like a jet. On the otherhand, if your CPU climbed above 50C or so, things are heating up a bit (you're half way from normal idle temp to thermal event temp) and so maybe we should. Also keep in mind that a better HSF, like the Zalman 700Cu that I use, has much better thermal resistance and so it conducts heat off more efficiently anyway--ya gotta love an HSF that's 100 percent copper. :D

That 51C CPU target makes sense to me and the mobo says it's adjustable (probably up) in 3C increments. Basically, I'm saying the settings sound perfectly logical and I would leave it at the default--which I did. :p

What am I using for monitoring? Well, for some reason that I haven't been able to figure out, Asus Probe and MBM5 won't work on my P5AD2E so I resorted to checking the temp and fan speed in the BIOS once in a while, and for steady monitoring I use CPUCool (available free on MajorGeeks.com). It will display all kinds of information. I also do a sanity check once in a while using Sandra--great tool there. The Lite version is free and also available on MajorGeeks.

The Avatar--The higher res version is on my laptop. I'll have to send it to you via PM, maybe tomorrow.

Thanks pop,U just answered a question for me i posted earlier.Im going to reformat soon and i am tring to find software that i like b4 i wipe it clean.I downloaded mbm5 last night and couldnt get the temperature sensors to the specific fans,everything kept showing 127on 1,127 on 2,and 127 on 3 ,didnt matter what sensor i reference the cpu,case fans etc to ,nothing worked,guess it wont?Also i use a coolermaster hyper 48 hs and fan,not the stock.Earlier u posted that ur cpu temp while surfing was 35c,what is ur cpu fan rpm at that point?My max cpu fan speed is 1400 rpm,and ususlly the temp stays around 42 to 45c,even though id like it to be lower.And btw,that asus probe works on my p5ad2,dont know if the p5ad2-e is much different so might not hurt to try it again,maybe download it directly from the asus website,just a thought,Thanks.

Get Sandra for all kinds of great info and diagnostics.

The 35C CPU temp while surfing also depends on ambient room temp, believe it or not. That affects the case temp. Add to all this the fact that I have a 6800GT (hot) and the temp inside the case can get warm all by itself. Now that the weather has cooled off and my room is down to humane levels--72F--that's about where it sits. It was higher during the summer. My fan runs at about 1600 or so at that temp.

I'll try the Asus Probe again, but I'm almost positive I downloaded it off the Asus site after it didn't work the first time--and got the same result.

Hey pop,if u dont mind i posted another thread a few minites ago,ur pc a lot like my,even though u got me on a few things,160g seagate baracuda,asus p5ad2,etc.I posted it in performance sif,so id like 4 u to look at it for me,just want to learn how to optimize this machine as well as possible,I know quite a bit,but also a lot ive never had the chance to study up on,thanks again!

gonna reboot at set qfan to default and see how it does,brb