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"Silent audio computer", ...how to build a pc for music listening
NumLOCK
post Feb 24 2003, 09:57
Post #1


Neutrino G-RSA developer


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Posts: 852
Joined: 8-May 02
From: Geneva
Member No.: 2002



Hi all,

What about sharing our personal experiences with building silent, flexible home audio/entertainment devices? wink.gif
This was my first time - and the choice of components was not easy ! Very often, you can't have both speed and silence. Here's what I did.

I've just built a PC on a following basis:
- ABIT KD7-E mainboard (VIA KT333 chipset / allows cpu multiplier setting / voltage lowering in BIOS / down to 1.1V in 0.025V increments).
- AMD Thoroughbred 2000+ 1.65V cpu (multiplier is unlocked out-of-the-box).
- flower CPU heatsink -- it rocks: depending on cpu voltage, there's no need for a fan !!
- 256MB of cheap PC266 ddr sdram
- nice black midi-tower case without PSU.
- special, ultra-quiet 300W PSU
- 7200RPM, 80GB WD HDD
- ATI Radeon 9000pro with VGA, DVI- and TV-out

The following components were modified:
- cpu was underclocked and heavily under-volted (running as 1500+ @ 1.2V). Can also run ~1200MHz @ 1.1V.
- Radeon 9000 pro was modified for passive cooling
- northbridge fan of the motherboard was replaced with passive cooling solution.
- HDD was put in silent 5 1/4'' acoustic armor.
- the case was stuffed with custom acoustic damping material.

The special components were mostly Zalman stuff, found on:
- http://www.quietpc.com/cpucool2.php (CPU flower cooler)
- http://www.quietpc.com/psu.html (silent PSU)
- http://www.quietpc.com/silentdrive.html (HDD armor)
- http://www.quietpc.com/vgamb.php (VGA and M/B heatsinks).

Results:
- there are two fans in the system (PSU & CPU), one of which can be deactivated.
- runs smoothly at 1500+, 1.2V, ~40 Celsius with big, silent 600RPM fan to blow some air into the case (no fan is fine also: ~42-55 Celsius depending on cpu voltage).
- pc is near-silent (just about "undetectable" from 30cm distance).

Additional thoughts:
- I'll add a soundcard and a LAN card (no fans, so no problem)
- I'm still hesitating about what DVD-rom drive I'll put in there.
- I've put the 7200RPM HDD because that's all I had.. but maybe I'll replace it with a 5400RPM (or lower) one.
- operating system not chosen yet.

Epilogue / What I learned:
- I'm VERY satisfied with this silent PC.
- In the future I'll be careful about the noise when buying components for other pc's.
- There's no way I'd buy a GeForce FX (think noise..)
- Silent machines need more expensive cooling components, but I think it's really worth it !

This post has been edited by NumLOCK: Feb 24 2003, 11:01


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JEN
post Apr 20 2003, 10:20
Post #2





Group: Banned
Posts: 1131
Joined: 19-September 02
Member No.: 3407



Thanks for all the advice everyone especialy SometimesWarrior smile.gif. You have helped me alot in my quest in making a silent pc biggrin.gif

OK, I have just discovered another problem. I have managed to unlock the processor! but my motherboard is designed for overclocking, not underclocking. Therefore, it will not allow me to set the vcore below 1.725!!!

So, my question is, if I leave the vcore @ 1.75, but underclock the xp1900 to xp1700 or xp1500, will it run cooler than the original xp1900 speed? If that is not possible, is there any other way to reduce the vcore?

BUILD A DUCT: Now that could be interesting! I can understand how it will inprove processor cooling, but how will it improve GPU cooling when there is no fan or duct pointing at the GPU? (Problem solved, make 2 92mm duct with 2x 92mm silent fan smile.gif)

Another problem: As my HDD is in the Silent Drive Enclosure, on worm days the temperature of the HDD can reach upto 56 Degrees! I think 55 Degrees is the limit. How/what can I do to cool the HDD. My idea was to mod the case and add another fan pointing towards the HDD, but it seems that the fan is to thick to fit between the case and the HDD! Any ideas on how I can cool the HDD down?

Silencing plan:

4x 92mm silent fan + duct on side of case pointing towards the CPU, GPU, HDD, and 1 blowing air out of the top of the case (should be enough)
fan speed controller 4 fan
1x passive GPU heatsink without fan
grills 4x 92mm
1x 300W silent PSU

Future mods

4x fan filters (reduce dust blowing in)
acustic foam from quietpc

This post has been edited by JEN: Apr 20 2003, 21:12
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Posts in this topic
- NumLOCK   "Silent audio computer"   Feb 24 2003, 09:57
- - Hanky   Sorry but I have no knowledge at all on this, but ...   Feb 24 2003, 10:05
- - NumLOCK   I haven't tried water cooling, it should be fi...   Feb 24 2003, 10:12
- - rc55   @Hanky: I don't meant to be rude, but if you d...   Feb 24 2003, 10:28
- - wdekler   @Numlock You can get your money PSU back if you wa...   Feb 24 2003, 10:38
- - NumLOCK   QUOTE (rc55 @ Feb 24 2003 - 10:28 AM)@Numlock...   Feb 24 2003, 10:43
- - NumLOCK   QUOTE (wdekler @ Feb 24 2003 - 10:38 AM)@Numl...   Feb 24 2003, 10:58
- - AiZ   Hello everybody, As long as your hard drive suppo...   Feb 24 2003, 11:02
- - niktheblak   The following are some of my personal experiences ...   Feb 24 2003, 11:24
- - NumLOCK   @AiZ At least for my HDD, the most "disturbi...   Feb 24 2003, 11:39
- - Gabriel   I think that electrical tape means the IDE/floppy ...   Feb 24 2003, 11:45
- - niktheblak   Sorry, I didn't know the exact english express...   Feb 24 2003, 11:52
- - NumLOCK   I see.. it seems to be that ugly kind of red tape...   Feb 24 2003, 12:03
- - Annuka   I managed to silence my workstation some months ag...   Feb 24 2003, 12:06
- - n68   yup... i don`t belive in quieting each compo...   Feb 24 2003, 12:16
- - dgover2   Just a couple of notes, don't know if they wil...   Feb 24 2003, 12:24
- - KikeG   QUOTE (n68 @ Feb 24 2003 - 12:16 PM)i don...   Feb 24 2003, 12:58
- - NumLOCK   QUOTE (dgover2 @ Feb 24 2003 - 12:24 PM)Now i...   Feb 24 2003, 13:54
- - niktheblak   QUOTE (NumLOCK @ Feb 24 2003 - 01:03 PM)I see...   Feb 24 2003, 14:04
- - userXYZ   I can recommend the following components out of my...   Feb 24 2003, 14:33
- - DonP   A former employer set up the training rooms with m...   Feb 24 2003, 14:59
- - NumLOCK   QUOTE (DonP @ Feb 24 2003 - 02:59 PM)A former...   Feb 24 2003, 15:09
- - Kim_C   Here's a review of fanless ProSilence 350 PSU....   Feb 24 2003, 15:14
- - fileman   Hello everybody, I'm using a water cooled sys...   Feb 24 2003, 15:18
- - GeSomeone   QUOTE (AiZ @ Feb 24 2003 - 11:02 AM)As long a...   Feb 24 2003, 17:56
- - aabxx   I would say my solution is as good as it gets.. my...   Feb 24 2003, 18:11
- - Artemis3   This is only a reminder: Hard Disks and CD Drives ...   Feb 24 2003, 18:36
- - niktheblak   QUOTE (Artemis3 @ Feb 24 2003 - 07:36 PM)This...   Feb 24 2003, 23:25
- - Patsoe   QUOTE (aabxx @ Feb 24 2003 - 06:11 PM)I would...   Feb 25 2003, 00:48
- - ff123   I'm going to upgrading my system in the coming...   Feb 25 2003, 03:27
- - DonP   QUOTE (NumLOCK @ Feb 24 2003 - 06:09 AM)lengt...   Feb 25 2003, 03:59
- - SometimesWarrior   QUOTE (ff123 @ Feb 24 2003 - 06:27 PM)4. NVid...   Feb 25 2003, 07:30
- - SometimesWarrior   My current dual-XP1600+ machine is so noisy I can ...   Feb 25 2003, 07:45
- - ff123   QUOTE (SometimesWarrior @ Feb 24 2003 - 10:30...   Feb 25 2003, 08:10
- - Continuum   QUOTE (aabxx @ Feb 24 2003 - 06:11 PM)If this...   Feb 25 2003, 08:19
- - KikeG   QUOTE (ff123 @ Feb 25 2003 - 03:27 AM)1. Athl...   Feb 25 2003, 09:25
- - Gabriel   Hard drive considerations: A current 7200rpm driv...   Feb 25 2003, 09:31
- - Gabriel   Just found this Fanless heatsink with fluid inside...   Feb 25 2003, 09:47
- - arman68   QUOTE (Gabriel @ Feb 25 2003 - 08:31 AM)A goo...   Feb 25 2003, 09:48
- - Gabriel   PII, PIII and PPro were unable to automatically th...   Feb 25 2003, 10:15
- - Patsoe   In light of the fact that were talking audio compu...   Feb 25 2003, 14:35
- - Trelane   Nobody's mentioned laptops yet! My PC (wh...   Feb 25 2003, 15:27
- - NumLOCK   I have a japanese Panasonic T1 laptop which has no...   Feb 25 2003, 16:45
- - SometimesWarrior   Sorry for resurrecting the thread, but this site i...   Mar 6 2003, 15:32
- - JEN   OK... I have decided to join in with the cat theme...   Apr 10 2003, 20:36
- - Joseph   http://www.alienware.com has some pretty small li...   Apr 10 2003, 21:37
- - atici   I recently discovered something which I liked a lo...   Apr 10 2003, 21:46
- - cd-rw.org   I think I will switch from this server cased behem...   Apr 10 2003, 22:26
- - CiTay   QUOTE (atici @ Apr 10 2003 - 10:46 PM)I recen...   Apr 10 2003, 22:46
- - ff123   QUOTE (atici @ Apr 10 2003 - 12:46 PM)I recen...   Apr 11 2003, 02:40
- - atici   Yeah I know I think the usual brute force soluti...   Apr 11 2003, 02:56
- - fewtch   I think I'll be transplanting my PC to a new c...   Apr 11 2003, 03:03
- - SometimesWarrior   QUOTE (fewtch @ Apr 10 2003 - 07:03 PM)I thin...   Apr 11 2003, 03:34
- - wynlyndd   I was reading somewhere about how two fans placed ...   Apr 11 2003, 03:44
- - SometimesWarrior   QUOTE (atici @ Apr 10 2003 - 06:56 PM)BTW do ...   Apr 11 2003, 03:46
- - SometimesWarrior   QUOTE (wynlyndd @ Apr 10 2003 - 07:44 PM)I wa...   Apr 11 2003, 03:54
- - DonP   One of the guys on a US tv show "The Screensa...   Apr 11 2003, 04:14
- - ff123   QUOTE (SometimesWarrior @ Apr 10 2003 - 06:46...   Apr 11 2003, 04:25
- - atici   I don't understand. When I first boot my compu...   Apr 11 2003, 04:39
- - fileman   I upgraded again (in cooling, not in power ;-) Th...   Apr 11 2003, 05:12
- - ff123   QUOTE (atici @ Apr 10 2003 - 07:39 PM)I don...   Apr 11 2003, 05:40
- - SometimesWarrior   QUOTE (DonP @ Apr 10 2003 - 08:14 PM)One of t...   Apr 11 2003, 06:03
- - 12345   It's wonderful to se people put dollars, ...   Apr 11 2003, 08:07
- - JEN   QUOTE (12345 @ Apr 11 2003 - 08:07 AM)It...   Apr 11 2003, 13:48
- - DonP   QUOTE (SometimesWarrior @ Apr 11 2003 - 12:03...   Apr 11 2003, 14:42
- - CiTay   QUOTE (ff123 @ Apr 11 2003 - 03:40 AM)Wow, th...   Apr 11 2003, 14:43
- - KikeG   QUOTE (DonP @ Apr 11 2003 - 02:42 PM)Most of ...   Apr 11 2003, 14:59
- - DonP   QUOTE (KikeG @ Apr 11 2003 - 08:59 AM)Anyway,...   Apr 11 2003, 16:02
- - KikeG   See my previous edit.   Apr 11 2003, 16:12
- - Patsoe   QUOTE (JEN @ Apr 11 2003 - 01:48 PM)Interesti...   Apr 11 2003, 16:21
- - JEN   QUOTE (Patsoe @ Apr 11 2003 - 04:21 PM)QUOTE ...   Apr 11 2003, 17:58
- - DonP   QUOTE (JEN @ Apr 11 2003 - 11:58 AM)So, maybe...   Apr 11 2003, 18:44
- - JEN   I just installed the Silent Drive Housing for the ...   Apr 17 2003, 16:02
- - JEN   I have an xp1900+. I tried unlocking it some time...   Apr 17 2003, 23:58
- - SometimesWarrior   QUOTE (JEN @ Apr 17 2003 - 03:58 PM)I have an...   Apr 18 2003, 17:32
- - JEN   How do I find out which Athlon XP 1900+ I have?   Apr 18 2003, 20:49
- - Delirium   I'm a bit late on this thread, but I'll ad...   Apr 19 2003, 02:53
- - SometimesWarrior   QUOTE (Delirium @ Apr 18 2003 - 06:53 PM)On t...   Apr 19 2003, 03:43
- - SometimesWarrior   QUOTE (JEN @ Apr 18 2003 - 12:49 PM)How do I ...   Apr 19 2003, 04:05
- - JEN   QUOTE (SometimesWarrior @ Apr 19 2003 - 04:05...   Apr 19 2003, 10:14
- - CiTay   QUOTE (JEN @ Apr 19 2003 - 11:14 AM)there is ...   Apr 19 2003, 14:12
- - SometimesWarrior   QUOTE (CiTay @ Apr 19 2003 - 06:12 AM)QUOTE (...   Apr 20 2003, 05:25
- - SometimesWarrior   QUOTE (JEN @ Apr 19 2003 - 02:14 AM)QUOTE (So...   Apr 20 2003, 06:00
- - JEN   Thanks for all the advice everyone especialy Somet...   Apr 20 2003, 10:20
- - JEN   What would be better? 1. modding the PSU with 2 s...   Apr 21 2003, 21:27
- - CiTay   QUOTE (JEN @ Apr 21 2003 - 10:27 PM)1. moddin...   Apr 21 2003, 22:13
- - JEN   QUOTE (CiTay @ Apr 21 2003 - 10:13 PM)QUOTE R...   Apr 23 2003, 11:14
- - CiTay   QUOTE (JEN @ Apr 23 2003 - 12:14 PM)Is this t...   Apr 23 2003, 13:24
- - spoon   QUOTE So, my question is, if I leave the vcore @ 1...   Apr 23 2003, 14:54
- - ff123   QUOTE (CiTay @ Apr 23 2003 - 04:24 AM)QUOTE (...   Apr 23 2003, 15:58
- - Annuka   QUOTE (SometimesWarrior @ Apr 19 2003 - 04:43...   Apr 23 2003, 17:04
- - bodhy   Hi all... Maybe some of you will be interested in ...   Apr 23 2003, 22:22
- - JEN   Is the Seagate Barracuda 80Gb 7200rpm UDMA100 Hard...   Apr 26 2003, 17:22
- - CiTay   QUOTE (JEN @ Apr 26 2003 - 06:22 PM)Is the Se...   Apr 26 2003, 17:48
- - ff123   QUOTE (JEN @ Apr 26 2003 - 08:22 AM)Is the Se...   Apr 26 2003, 17:52
- - JEN   I am planning on making a CPU exhaust duct to the ...   Apr 30 2003, 23:22
- - SometimesWarrior   QUOTE (JEN @ Apr 30 2003 - 03:22 PM)As the ca...   May 1 2003, 02:35
- - SometimesWarrior   QUOTE (Annuka @ Apr 23 2003 - 09:04 AM)QUOTE ...   May 1 2003, 02:52
- - ff123   Today I put isolating screws on my case fan, and s...   May 1 2003, 06:03
- - Delirium   QUOTE (ff123 @ Apr 30 2003 - 10:03 PM)Today I...   May 1 2003, 06:08
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