Fan for the XP-120

mach zero

Junior Member
Nov 15, 2005
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Been lurking these forums for some time now and have found the members to be quite helpful and informative. So I've finally decided to come out of hiding to ask this question.

I am putting together a new system and have decided to cool my CPU (an A64 4000+) with an XP-120. I have searched the forum and read a lot of good suggestions on a fan for this heatsink. Problem is, most of these suggestions have been aimed toward acheiving silence, which is certainly a consideration but not my main goal, as when I need cooling most I usually have the sound on my games up loud enough to push any peripheral noise into the background. My problem is this - Thermalright's product page suggests a Panaflo that has 68.9 CFM. However, the Panaflo's don't appear to support speed monitoring which is an absolute "must" for me as I am anal enough that I have to be able to see everything that's going on in my computer. But most of the fans that I have found which do support monitoring are either well below that rating by about 20 +/- CFM or are ridiculously loud.

So, here is my question (two actually). If I get a fan such as this Cooler Master model will I still see satisfactory results with this heatsink during intense gaming and such, and if so does that imply that a high CFM fan like the Panaflo may actually be overkill even in such situations? And any suggestions for a particular moderate speed fan that doesn't quite reach the decibels of a leaf blower? I had thought perhaps a variable speed fan might be the ticket, but majority opinion on this forum seems to be generally unfavorable regarding the two most common which are made by TT and Antec.

Sorry for the longwinded, noobish post but I haven't ventured into the realm of aftermarket cooling since I put a Swiftech on my Athlon XP 1900+ (long overdue for an upgrade, wouldn't you say?). Thanks in advance.
 

JEDIYoda

Lifer
Jul 13, 2005
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I will tell you what my experiences are concerning fans.....
Alot of companys will mis label there fan specs....

Coolermaster is what you see is what you get!!
I have all my case fans coolermaster!!
I am fixing to change my heatsink fan to a coolermaster which i have sitting around!!
I love the Coolermaster neon LEd fans!!
There specs are right on the money!!

The panaflos are a noisy.....as is the thermaltake smart fan which displaces over 90cfm when throttled up!!

My experiences with fans and over clocking is you are really limited by the quality of your heatsink!!
It has been my experiences that anything over 40-50cfm is over kill and will not make a dent in your CPU temps - even if you are over clocking.
There comes a point where you will see no reduction in temps!!

Good Luck!!
 

1Dark1Sharigan1

Golden Member
Oct 5, 2005
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Originally posted by: JEDIYoda
My experiences with fans and over clocking is you are really limited by the quality of your heatsink!!
It has been my experiences that anything over 40-50cfm is over kill and will not make a dent in your CPU temps - even if you are over clocking.
There comes a point where you will see no reduction in temps!!

Good Luck!!

I've said this before but that's not exactly true. As I pointed out in a nother thread, the difference between 40-50 CFM and 90-100 CFM can be a 7-8C difference to CPU load temps . . . (at least with AMD 64)

Yes the heatsink is a major limiting factor but with the XP-120 the fan speed is significant also . . . not AS significant as the heatsink itself but still significant. Now is it worth the 7-8C difference if you have to tolerate 45 dBA worth of noise? That's up to you . . .

Also I would always get a CPU fan that can be easily throttled via fan controller or temp sensor since it gives you the ability to use high CFM when noise will not be a factor. (i.e. when gaming since you won't hear the fan anyway . . .)

Of course that's why I would recommend the TT 120mm LED Smart Fan . . . :) . . . it's the one I used before I went to Delta . . .
 

JBDan

Platinum Member
Dec 7, 2004
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Originally posted by: 1Dark1Sharigan1
Originally posted by: JEDIYoda
My experiences with fans and over clocking is you are really limited by the quality of your heatsink!!
It has been my experiences that anything over 40-50cfm is over kill and will not make a dent in your CPU temps - even if you are over clocking.
There comes a point where you will see no reduction in temps!!

Good Luck!!

I've said this before but that's not exactly true. As I pointed out in a nother thread, the difference between 40-50 CFM and 90-100 CFM can be a 7-8C difference to CPU load temps . . . (at least with AMD 64)

Yes the heatsink is a major limiting factor but with the XP-120 the fan speed is significant also . . . not AS significant as the heatsink itself but still significant. Now is it worth the 7-8C difference if you have to tolerate 45 dBA worth of noise? That's up to you . . .

Also I would always get a CPU fan that can be easily throttled via fan controller or temp sensor since it gives you the ability to use high CFM when noise will not be a factor. (i.e. when gaming since you won't hear the fan anyway . . .)

Of course that's why I would recommend the TT 120mm LED Smart Fan . . . :) . . . it's the one I used before I went to Delta . . .

My results using two different fans on an XP120 and an AMD64 3500+ Win
Room temps w/in 1-2F during testing
XP120 w/ ADDA fan @ ~3000rpm ~97cfm CPU 49C (prime torture 30 minutes)
XP120 w/ ADDA fan @ ~1500rpm ~49cfm CPU 51C (prime torture 30 minutes)
2C hardly worth the noise. I did this last year because I became addicted to silencing pc's. In my experience, what Jedi said is accurate. Ofcourse different results will come about, but this is mine. Welcome to AT mack zero! :)
I would personally go for the coolermaster fans you linked. With good case airflow they will work just dandy.
 

1Dark1Sharigan1

Golden Member
Oct 5, 2005
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Originally posted by: JBDan
My results using two different fans on an XP120 and an AMD64 3500+ Win
Room temps w/in 1-2F during testing
XP120 w/ ADDA fan @ ~3000rpm ~97cfm CPU 49C (prime torture 30 minutes)
XP120 w/ ADDA fan @ ~1500rpm ~49cfm CPU 51C (prime torture 30 minutes)
2C hardly worth the noise. I did this last year because I became addicted to silencing pc's. In my experience, what Jedi said is accurate. Ofcourse different results will come about, but this is mine. Welcome to AT mack zero! :)
I would personally go for the coolermaster fans you linked. With good case airflow they will work just dandy.

Hmm, I suppose the hotter your CPU gets the less effect it would have. Those are some pretty hot temps with an XP-120 though. With my XP-90C and 120mm Delta @ ~120 cfm I never get above 36C but with it at 45cfm I get upwards of 42-43C . . . (This is with a 3000+ Venice @ 2.7 GHz 1.6v)
 

JEDIYoda

Lifer
Jul 13, 2005
33,986
3,321
126
Originally posted by: JBDan
Originally posted by: 1Dark1Sharigan1
Originally posted by: JEDIYoda
My experiences with fans and over clocking is you are really limited by the quality of your heatsink!!
It has been my experiences that anything over 40-50cfm is over kill and will not make a dent in your CPU temps - even if you are over clocking.
There comes a point where you will see no reduction in temps!!

Good Luck!!

I've said this before but that's not exactly true. As I pointed out in a nother thread, the difference between 40-50 CFM and 90-100 CFM can be a 7-8C difference to CPU load temps . . . (at least with AMD 64)

Yes the heatsink is a major limiting factor but with the XP-120 the fan speed is significant also . . . not AS significant as the heatsink itself but still significant. Now is it worth the 7-8C difference if you have to tolerate 45 dBA worth of noise? That's up to you . . .

Also I would always get a CPU fan that can be easily throttled via fan controller or temp sensor since it gives you the ability to use high CFM when noise will not be a factor. (i.e. when gaming since you won't hear the fan anyway . . .)

Of course that's why I would recommend the TT 120mm LED Smart Fan . . . :) . . . it's the one I used before I went to Delta . . .

My results using two different fans on an XP120 and an AMD64 3500+ Win
Room temps w/in 1-2F during testing
XP120 w/ ADDA fan @ ~3000rpm ~97cfm CPU 49C (prime torture 30 minutes)
XP120 w/ ADDA fan @ ~1500rpm ~49cfm CPU 51C (prime torture 30 minutes)
2C hardly worth the noise. I did this last year because I became addicted to silencing pc's. In my experience, what Jedi said is accurate. Ofcourse different results will come about, but this is mine. Welcome to AT mack zero! :)
I would personally go for the coolermaster fans you linked. With good case airflow they will work just dandy.

My point was proved---thank you!!
 

zagood

Diamond Member
Mar 28, 2005
4,102
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120 CFM from one fan? Does your case tilt sideways when you turn it on? ;)

-z

Originally posted by: 1Dark1Sharigan1

Hmm, I suppose the hotter your CPU gets the less effect it would have. Those are some pretty hot temps with an XP-120 though. With my XP-90C and 120mm Delta @ ~120 cfm I never get above 36C but with it at 45cfm I get upwards of 42-43C . . . (This is with a 3000+ Venice @ 2.7 GHz 1.6v)

 

JBDan

Platinum Member
Dec 7, 2004
2,333
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Originally posted by: 1Dark1Sharigan1
Originally posted by: JBDan
My results using two different fans on an XP120 and an AMD64 3500+ Win
Room temps w/in 1-2F during testing
XP120 w/ ADDA fan @ ~3000rpm ~97cfm CPU 49C (prime torture 30 minutes)
XP120 w/ ADDA fan @ ~1500rpm ~49cfm CPU 51C (prime torture 30 minutes)
2C hardly worth the noise. I did this last year because I became addicted to silencing pc's. In my experience, what Jedi said is accurate. Ofcourse different results will come about, but this is mine. Welcome to AT mack zero! :)
I would personally go for the coolermaster fans you linked. With good case airflow they will work just dandy.

Hmm, I suppose the hotter your CPU gets the less effect it would have. Those are some pretty hot temps with an XP-120 though. With my XP-90C and 120mm Delta @ ~120 cfm I never get above 36C but with it at 45cfm I get upwards of 42-43C . . . (This is with a 3000+ Venice @ 2.7 GHz 1.6v)

Left out a couple of details srry dark. 49-50C load for my proc at its speeds are considered good....especially since I run 4 Nexus (one atop my xp120) fans all @ ~680rpm. CPU is oc'd to 2.52MHz @1.55V. That test was done in the summer. Now that its 40-50F here in ATL I run 34C idle & 45C load. I use RMClock so at idle I sit @ 29C idle and hit 43-45C after 1 hour under load.
 

scrawnypaleguy

Golden Member
Jun 19, 2005
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Good news, they now make the recommended Panaflo M1A as an M1BX model that supports RPM monitoring here

Also, if I could make a recommendation, I've heard that the SI-120 performs better than the old XP, and is easier to install.
 

1Dark1Sharigan1

Golden Member
Oct 5, 2005
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Originally posted by: scrawnypaleguy
Good news, they now make the recommended Panaflo M1A as an M1BX model that supports RPM monitoring here

Also, if I could make a recommendation, I've heard that the SI-120 performs better than the old XP, and is easier to install.

Yes SI-120 = XP-90C > XP-120 but many people still prefer to get the XP-120 . . . I suppose it's because it's not as "tall" as the SI-120?
 

1Dark1Sharigan1

Golden Member
Oct 5, 2005
1,466
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Originally posted by: JBDan
Left out a couple of details srry dark. 49-50C load for my proc at its speeds are considered good....especially since I run 4 Nexus (one atop my xp120) fans all @ ~680rpm. CPU is oc'd to 2.52MHz @1.55V. That test was done in the summer. Now that its 40-50F here in ATL I run 34C idle & 45C load. I use RMClock so at idle I sit @ 29C idle and hit 43-45C after 1 hour under load.

45 load still seems kinda high to me . . . I was under the impression that the XP-120 was only slightly worse than the XP-90C . . .

I remember running my old winchester @ 2.5 GHz & 1.58v with an regular XP90 and a 94 CFM fan an getting 38C loads during the winter time . . . and that's with my system closed, no 20" fan blowing and with cluttered wiring . . .
 

mach zero

Junior Member
Nov 15, 2005
3
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0
Originally posted by: scrawnypaleguy
Good news, they now make the recommended Panaflo M1A as an M1BX model that supports RPM monitoring here

Also, if I could make a recommendation, I've heard that the SI-120 performs better than the old XP, and is easier to install.


Thanks much for the link paleguy, and to all of you for your kind suggestions and observations. I think that I am going to hedge my bets and order both the Cooler Master and the Panaflo you linked to and see which one suits me best. I am also eyeing a variable speed, 9 blade Silverstone fan which looks very interesting.

Why didn't I opt for the SI-120? (Knew that question would come up eventually ;) ) And you guessed it Dark Sharigan. Reason is because of the depth of my case. I have the Praetorian 730. It is still waiting to recieve the rest of my parts, but from up close and personal pics I have seen of another individual using the XP-120 in this particular case, it comes precariously close to blocking the exhaust fans. So I'm afraid the added height of the SI-120 would put it that much closer to actually making contact with the side panel (if anyone can dispel that concern with some firsthand knowledge, please do). As it is I am already going to have to remove the air duct from the side intake just to accomodate it and may replace the duct with an ultra low speed 120x25 fan.

Thanks again!