[iammykyl]

O.K. i noticed my motherboard which is a Asus p8h61-m-Pro,has two extra fan connectors,4-pin CHA_FAN1,4-pin CHA_FAN2,plus CPU Fan connector.Can i use these to connect a fan if i want to

YES. The fan would then be controlled by the heat sensor on the motherboard. or, connect only to the PSU with some control using the supplied L.N.A.

You do have the option to controll fans through the BIOS or, set up fan profiles using the software suite for specific use, like playing some games on very high settings.

Only fan i have is one on CPU,then one be on new PSU

NO. The PSU will not have a plug to connect to the Mobo, it's speed is controlled by a heat sensor inside the PSU itself.

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or, connect only to the PSU with some control using the supplied L.N.A. I do not understand this line,What is the L.N.A? What i meant is the only fans i will have is one on the new power supply plus the one on the processor to cool system,will it be enough?Why i asked about adding a fan on back of case.You said this and i got a bit confused,NO.The PSU will not have a plug to connect to the Mobo,it's speed is controlled by a heat sensor inside the PSU itself.The rest i understood in your reply.TY

Edited by jds63, 14 December 2012 - 04:19 PM.

[jds63]

or, connect only to the PSU with some control using the supplied L.N.A. I do not understand this line,What is the L.N.A? What i meant is the only fans i will have is one on the new power supply plus the one on the processor to cool system,will it be enough?Why i asked about adding a fan on back of case.You said this and i got a bit confused,NO.The PSU will not have a plug to connect to the Mobo,it's speed is controlled by a heat sensor inside the PSU itself.The rest i understood in your reply.TY

Edited by jds63, 14 December 2012 - 04:19 PM.

[iammykyl]

Hi.
For an explanation of L.N.A features, specifications and installation instruction go to > http://noctua.at/mai...ts_id=44&lng=en

Sorry to have contused you about the PSU fan. I was pointing out that it does not have a fan control plug to attach to the Motherboard, rather that it's fan is controlled by a heat sensor inside the PSU.

[jds63]

OK well i purchased that Seasonics PSU did install myslef everthing worked out great,i even put in my sound card,all is working well,feel have enough power.About fan thing,yes i can hook one up to motherboard it has two chassis fan connectors then thru BIOS i can control speeds and other things of the fan,like you said a 92mm fan will fit do well,i was concerned of heat since that computer only has a fan on CPU And PSU thought maybe it needed more.I did see a fan had a 3 speed switch on it,may help too without doing in BIOS.Here is one i looked at http://www.amazon.co...pd_sxp_redirect
As you see has two connectors on it one for motherboard a 4 pin and one for power supply.Let me know what you think,one if i really require another fan,two,if this is good enough.Iam also buying more RAM,PC has 6gb,going up to 8gb.

Edited by jds63, 18 December 2012 - 07:36 PM.

[iammykyl]

No to the fan you linked. That fan is a bit loud and you do not have anywhere to install the switch. Please stay with the one I selected, use the 4 pin plug connected directly to the fan header on the Motherboard. It will operate automatic and be controlled by the heat sensor.

Please go to this site and use the tools to find the exact RAM for your upgrade. > http://www.crucial.com/systemscanner/

[jds63]

O.K. i found it for a good price the one you mentioned,Noctua.I kind of notice and think it could be the fan on the CPU seems a bit noisy.Can i just change the fan on it or do i need to buy the other pieces that come with it,like radiators and heat sinks,if i can get just the fan,which one,another 92mm? Again my mother board is a Asus P8H61-M-Pro Intel i5 LGA 1155 socket.Again,thank you for all your help.Since i received Noctua NF-B9 PWM 92MM Fan it fit the case well i was wondering,should the label on fan face out the back case for proper air flow?
Also what i asked before about changing the CPU fan to say a Noctua,i am thinking a 80mm might fit better,for an idea i put the NF-B9 next to CPU fan to see the size difference and it seemed slightly bigger,so can you tell me if i need a 80mm,i looked at this one,tell me what you think http://www.quietpc.com/nf-r8-pwm
Also does RPM matter with a CPU fan,one i have seems have a high RPM listing i looked it up somewhere near 39,000 RPMs?One i listed to you only max. at 1800RPMs.Also looking at this a CPU Fan http://www.nexustek....ultra-quiet.htm

Edited by jds63, 23 December 2012 - 01:15 AM.

[iammykyl]

You can just change the fan. I have found it impossible to find an actual measurement for the CPU fan size but I think it is a 92mm fan,
> http://www.noctua.at...ts_id=44&lng=en it will do no harm to unscrew the fan, (leaving the heat-sink in place) to check the measurements.

should the label on fan face out the back case for proper air flow?

Label facing out, expels hot air from inside the case.
Label facing in, blows could air into the case.
You should try both ways around, monitor the temps and fan speeds and see which works best for your case.

Also does RPM matter with a CPU fan,

How much volume of air the fan moves is more important. The Nexus fan you linked would be almost as noisy as the Intel stock cooler, stick with the Noctua.

[jds63]

O.K. i measured the CPU heatsink fan with a inches measuring tape,it seems to measure 3" an 1/16 i believe a 1/16 first mark after the 3" mark on tape i believe,excuse my math lol,so this one http://www.amazon.co...ref=pd_sim_pc_2 is 3.2 x 1 x 3.2 inches might be better fit then this one http://www.amazon.co...n/dp/B006GD3K5C which is 3.6 x 1 x 3.6,this one fit well as a case fan,both have same CFM,RPMS i believe.CPU fan is clipped on,not screwed on.So far heat doing well in case,usually no higher then 30c - 40c on CPU also i see most of the times the CPU fan is running at 1748 RPMs,seems be pretty much what runs at no matter how long PC is on,You feel this is enough air flow and RPMs with Noctua only runs at highest 1800 with the Noctua i mentioned NF-R8 PWM FAN with a 34 CFM.I will monitor it,since have software came with PC that does this,so do not have look in BIOS.This i found on internet by trying look up model of fan on CPU,closest i got,same model #,a Delta http://www.cwc-group.../aub0812vh.html see it ran at 39,000 RPMs,quite noisey high dba's,why at first concern over enough airflow.Question to,know might seem like i should know but when mounting CPU FAN airflow should blow towards the heatsink(down),right?If you feel Noctua NF-R8 PWM is best choice i will try it.So far noise levels beter with new PSU,might of been older one was noisier,also new Noctua case fan is very quiet,great fan.Thank you for answering,just answer last question be much appreciated,then i feel i will be done with this post,ty again.

Edited by jds63, 23 December 2012 - 05:06 PM.

[iammykyl]

Sorry for the delay, missed your last response.
The Noctua fan is more efficient than the stock one you have installed on the CPU so should run at a slower speed and still give some headroom should your temps go up a little if you stressed the computer more than at the moment.
The Delta you linked looks like a direct replacement for the stock cooler but being newer would probable be a little quieter than the one you have installed at the moment.

when mounting CPU FAN airflow should blow towards the heatsink(down), right?

Yes.

[jds63]

The link i sent you for Delta fan is same model number as one on CPU now,slight difference in look,but believe it's exact in specification,RPMs and CFMs.You believe one i linked you might be less noisy although some of quieter higher RPM ones i mentioned to you,like Nexus would also be as noisy? website called QuietPC http://www.quietpc.com/nx-80-pwmThis fan RPMs higher then Noctua,CFMs bit higher to,said to be quiet.Kind of stumped on it,maybe better left alone,just thought get little more quietness,Noctua by way,very quiet.I do thank you for your responses,no worries for the delay and hope you enjoyed your holiday.If can give me anymore advice,i appreciate it,Thank you again.

[iammykyl]

The Nexus, gets mixed reviews, a lot say it is noisy, > http://www.newegg.co...N82E16835610001
The Noctua would be the quietest of the fans.
The Delta may be quieter, it being newer than the one installed.

Is the fan worth changing?
I think you need answer the questions for yourself,
Can I live with the noise? is it really Noisy?
Am I willing to spend the money and take a chance of improvement? You would end up with a spare fan.

On balance, I would try the Delta first and if I felt the rig was still to noisy to live with, try the Noctua.

Let us know what you decide and the result if you change the fan.

[jds63]

O.K. i saw reviews on Nexus were mixed,i guess i was concerned if i wanted change the CPU fan i was worried Noctuas might not be sufficent as far as RPMs being only 1800 even though has good CFM ratings,considering if heat rises on CPU from alot of use one time,thought match closer to RPMs and CFMs of that one.This computer was a recent purchase so i have not had it long,even though build of PC might be older.As far as putting in same fan that's in it already,the Delta from having same specs,even though you might feel it's newer,doesn't say in review or ad it is or age,doesn't really make sense do that.Maybe i am over reacting on noise,as you said is it worth changing is it that noisy,not that bad,i think new PSU made difference on noise too.Only concern as said before changing to Noctua,will be enough to cool CPU,being at only 1800 RPMs,even though has a good CFM rating?http://www.amazon.co...n/dp/B006GD3K5C

Edited by jds63, 27 December 2012 - 07:21 PM.