Log in

No account? Create an account
entries friends calendar profile eLarsson.net Previous Previous Next Next
Hardware help needed... - Larsson Log — LiveJournal
grain of salt not included...
Hardware help needed...
I need some help from folks more knowledgeable about PC hardware than I. I've had the new PC I've built for a little over a week now, and I am reasonably satisfied in almost every respect, except one, the noise.

The issue is that I ended up buying a Prescott based CPU because Newegg was having a Turkey Day blowout on them, so I was over paranoid about cooling. I have basically this case, minus the clear side panel and side fan (and no blue LEDs on the rear fan either, but it does have the two front blue LEDs, which are nifty). So, I have a power supply fan, CPU fan, and the two 12cm front and rear case fans. The CPU fan is fine, it runs off the motherboard's power and the board has Q-Fan control so it regulates the speed. However, the case fans are too large, and run directly off the power supply.. no fan control...

The case does not have a heat problem, so I'm wondering what I can do insofar as fan control. I'm not interested in manual fan control, I'd like it automatic based on temp if that's possible. I'm not opposed to paying a few bucks and/or replacing the fans if I need to. Anything to make the unit quieter. I'm interested to know if anyone has had any experience with some of these fan control options, and can make a recommendation...

Current Mood: contemplative contemplative

9 comments or Leave a comment
mineral2 From: mineral2 Date: December 14th, 2004 08:36 am (UTC) (Link)
I've had noise issues with my computer which I am still trying to pinpoint the cause of. I have two case fans, one on the side and one in back and neither of them seem to make much sound. As far as I know, they're both generic fans. Most noise I've delt with is related to the fan on the processor, though it could be your power supply's fan running loudly too. The noise could also be from a culmination of all the fans running together. If you don't need all those case fans running, try unplugging a few.

Most likely, it'll be one or two fans causing most of the noise, so if you can pin-point them, those are the ones to replace.
caniswolfie From: caniswolfie Date: December 14th, 2004 09:01 am (UTC) (Link)
Okay you can do the following things:

1. Replace the power supply with a silent/quiet version instead of the current one you do have. I would advise going with the quiet version rather than the fanless silent version.

2. I found a box(fan controller) that does fan adjustments based on temperature measurements. Here's a review: http://www.overclockercafe.com/Reviews/other_misc/Tt_Hardcano_13/

3. Replace the fans that you do have with quieter/stealth versions.

4. Put in dampening material around the case to muffle the sound. Installing fan mounts around the fans as well to muffle the sound and vibration noise.

Some sites I use that have quiet fans and cooling equipment are:

amy_pearlman From: amy_pearlman Date: December 14th, 2004 09:37 am (UTC) (Link)
Translation (and the second law of hardware as written by caniswolfie):

Buy gamer hardware.

I have learned at the feet of the master.
vitaman From: vitaman Date: December 14th, 2004 11:15 am (UTC) (Link)
caniswolfie From: caniswolfie Date: December 14th, 2004 11:54 am (UTC) (Link)
Unfortunately, that won't work. The case fans are directly hooked into the power supply and don't run off the headers on the mainboard, where the speed software adjusts the fan speed. Even if the RPM monitor was hooked into the header, it still needs the power to varied from that header, not the power supply cables.
windexcowboy From: windexcowboy Date: December 14th, 2004 12:05 pm (UTC) (Link)
Yep, and I'm not sure if the motherboard hardware necessarily supports speed control on the other to headers anyway.. The Q-Fan control that the hardware supports only looks like it does the CPU fan header.

Looks like I'm going to end up replacing the fans, since the drive bay solution only works with 3 pin connectors (the review seemed to indicate that the 4 pin adapter that they give you only lets you do RPM monitoring on the fan, not control.) As far as I can tell, I can't find anything that does fan control for a fan that uses a 4 pin power supply lead.. dam...
caniswolfie From: caniswolfie Date: December 14th, 2004 12:37 pm (UTC) (Link)
Also don't overlook the noise that a power supply can make with its fan(s). I would try to turn on the computer with the 2 120mm fans disconnected to hear what the sound would be like at the best case if you replaced those case fans.
windexcowboy From: windexcowboy Date: December 14th, 2004 07:56 pm (UTC) (Link)
Disabling the case fans does reduce the noise significantly.. but you're right the power supply does make a bunch fo noise.. I guess I should expect that from a 400W power supply..

I think I'll look at replacing the case fans anyway and see where that gets me...
vitaman From: vitaman Date: December 14th, 2004 12:18 pm (UTC) (Link)
Yeah. I missed the part about how the fans are connected. No speedfan for you, sorry.
9 comments or Leave a comment