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Cooler Master N520 fans hiccuping?

Last response: in Overclocking
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August 21, 2009 6:20:44 AM

So I just got my new system together and I put the N520 on today and fired everything up. Everything is going great- CPU is idling at 34*C.

I started to run the ASUS probe software, and I get and error for the CPU fan every couple of minutes- it drops down to about 400-500rpm every couple of minutes or so from the standard 1700ish rpm it stays at.

Should I be concerned? Thanks!

Oh, another thing I'm a bit concerned about- I touched my NB heatsink and it's pretty much burning hot. Should I be concerned about this? Should I look into an aftermarket HSF?

Setup: Phenom II 955 on an Asus M4A78-E w/ 4GB of Corsair DDR2, XFX 4890, Ultra 750W, some Samsung optical drive...hm...all I can think of off the top of my head. This is all encased in a Cooler Master HAF 932- stock besides an extra 120mm mounted at the bottom as an intake fan.
a b K Overclocking
August 21, 2009 10:22:26 PM

I would worry about the fan...it could be a glitchy motherboard or something (bios possibly?)...I would try a bios update to try to fix this problem...
As for the NB, you should be fine as long as you don't overclock like crazy, like up to 4Ghz or something...If you are gonna overclock to the extreme then get an aftermarket hsf...
August 21, 2009 10:38:25 PM

I may try to RMA the motherboard- it was giving me some issues and I saw what I thought to be physical damage adjacent to the top right mounting screw hole. If the problem persists, I will try to return the motherboard- I should have upgraded to a DDR3 compliant motherboard, anyway.
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August 22, 2009 1:14:29 PM

gsx4gsixty3 said:
I may try to RMA the motherboard- it was giving me some issues and I saw what I thought to be physical damage adjacent to the top right mounting screw hole. If the problem persists, I will try to return the motherboard- I should have upgraded to a DDR3 compliant motherboard, anyway.

You need to go into your Bios' and Disable a few items.

1) Once in Bios' you to go 1st to "Advanced" settings, then go to "CPU Configuration" and Disable "Quiet n Cool" feature.

2) While still in the Bios' you need to go to "Power" settings, then to "HW Monitor Configuration" and look for "Smart Q-fan Function" and Disable it.

3) Once those are done you need to go to "EXIT" and click "Exit & Save Changes" and that should rectify your CPU Fan throttling to lower speed problem.

You can also get this info from your motherboard manual and itf you lost it you can download it from Asus site.
a b K Overclocking
August 24, 2009 5:46:55 AM

^Hmm I never thought that that was the smart fan control he was talking about...but you don't have to turn off the cool n quiet, just turn off the fan control if it bothers you...
September 4, 2009 8:01:35 AM

Hey guys, sorry for not responding for a while. I've been in the middle of moving so things have been quite busy. Thanks to those who replied.

Here is a log of what I'm talking about:

===================================================
ASUS PC Probe II

Alert Log Report

Number = 42
===================================================

[08/20/2009 at 11:49 am] CPU Fan Abnormal, 507 RPM
[08/20/2009 at 11:49 am] CPU Fan become normal, 1790 RPM
[08/20/2009 at 11:52 am] CPU Fan Abnormal, 507 RPM
[08/20/2009 at 11:52 am] CPU Fan become normal, 1795 RPM
[08/20/2009 at 11:55 am] CPU Fan Abnormal, 396 RPM
[08/20/2009 at 11:55 am] CPU Fan become normal, 1771 RPM
[08/20/2009 at 11:57 am] CPU Fan Abnormal, 510 RPM
[08/20/2009 at 11:57 am] CPU Fan become normal, 1809 RPM
[08/20/2009 at 12:03 pm] CPU Fan Abnormal, 509 RPM
[08/20/2009 at 12:03 pm] CPU Fan become normal, 1804 RPM
[08/21/2009 at 05:53 am] CPU Fan Abnormal, 514 RPM
[08/21/2009 at 05:53 am] CPU Fan become normal, 1809 RPM
[08/21/2009 at 05:57 am] CPU Fan Abnormal, 398 RPM
[08/21/2009 at 05:57 am] CPU Fan become normal, 1785 RPM
[08/26/2009 at 02:00 pm] CPU Fan Abnormal, 507 RPM
[08/26/2009 at 02:00 pm] CPU Fan become normal, 1757 RPM
[09/03/2009 at 10:01 pm] CPU Fan Abnormal, 509 RPM
[09/03/2009 at 10:01 pm] CPU Fan become normal, 1776 RPM
[09/03/2009 at 10:46 pm] CPU Fan Abnormal, 509 RPM
[09/03/2009 at 10:46 pm] CPU Fan become normal, 1814 RPM
[09/03/2009 at 10:57 pm] CPU Fan Abnormal, 511 RPM
[09/03/2009 at 10:57 pm] CPU Fan become normal, 1795 RPM
[09/03/2009 at 11:04 pm] CPU Fan Abnormal, 510 RPM
[09/03/2009 at 11:04 pm] CPU Fan become normal, 1795 RPM
[09/03/2009 at 11:21 pm] CPU Fan Abnormal, 508 RPM
[09/03/2009 at 11:21 pm] CPU Fan become normal, 1795 RPM
[09/03/2009 at 11:23 pm] CPU Fan Abnormal, 511 RPM
[09/03/2009 at 11:23 pm] CPU Fan become normal, 1781 RPM
[09/03/2009 at 11:37 pm] CPU Fan Abnormal, 510 RPM
[09/03/2009 at 11:37 pm] CPU Fan become normal, 1795 RPM
[09/03/2009 at 11:57 pm] CPU Fan Abnormal, 509 RPM
[09/03/2009 at 11:57 pm] CPU Fan become normal, 1776 RPM
[09/04/2009 at 12:08 am] CPU Fan Abnormal, 509 RPM
[09/04/2009 at 12:08 am] CPU Fan become normal, 1795 RPM
[09/04/2009 at 12:17 am] CPU Fan Abnormal, 509 RPM
[09/04/2009 at 12:18 am] CPU Fan become normal, 1776 RPM
[09/04/2009 at 12:24 am] CPU Fan Abnormal, 509 RPM
[09/04/2009 at 12:24 am] CPU Fan become normal, 1795 RPM
[09/04/2009 at 12:27 am] CPU Fan Abnormal, 508 RPM
[09/04/2009 at 12:27 am] CPU Fan become normal, 1767 RPM
[09/04/2009 at 12:55 am] CPU Fan Abnormal, 510 RPM
[09/04/2009 at 12:55 am] CPU Fan become normal, 1781 RPM

All in about an hour.
a c 86 K Overclocking
September 4, 2009 4:06:24 PM

Can you hear the fan slow down and speed up? If not it could be your RPM wire is making poor contact on the mobo header, reducing the signal strenth of the pulse etc. Could be your mobo sensing, could be the fan itself. Get another fan?
a b K Overclocking
September 5, 2009 4:20:28 AM

You could try getting another fan before considering buying a new motherboard...If the new fan doesn't fix the problem, then RMA your mobo or buy a new one...
!