Finally i have a computer that is silent enough. When i started lurking around on these forums a year or so ago i
noticed that my computer was a horribly noisy beast that needed to be silenced.
Antec PlusView 1080AMG (modded to hell and back)
Abit NF7-S v2.0 nforce2
AMD athlon 2500+ barton (not oc'd, stock 1833mhz)
1gb+2x256mb = 1.5gb ram (weird and shitty setup i know)
Samsung Spinpoint F1 1Tb
Asus Radeon 2600PRO AGP
NorthQ 400w PSU (with ADDA 120mm fanswap)
Spire Whisperrock CPU-cooler
Nexus 120mm exhaust fan
I soon became aware of the biggest limitation of this endeavour, And that limitation was my case,
An old Antec PlusView 1080AMG. Its basicly a Chieftec Dragon with a sidewindow and a somewhat restyled front.
Sweet jeebuz! how the h*ll am i supposed to get this thing to shut up.
The antec had from the factory five 80mm fans, three intakes and two exhausts.
That is not going to work i said to myself and whipped out the dremel
The thick steel of the antec slowly but surely dissapeared and i was left with a big rectangular hole in the front and something that looked like a round hole in the back.
The idea was to have a single nexus 120mm fan running in the back in tandem with the powersupply-fan generating airflow over the critical components.
The huge intake area is supposed to be the only way air is going to enter the case so i have taken great care to seal every other possible hole.
The next problem was the HDD-cages. I bored out the rivets holding the whole assembly and threw that away.
How would i mount my HDDs now? By thrashing an old pair of joggingpants and take the elastic waistband ofcourse.
I bored out 4 holes in the bottom of the case and 4 holes in the CD-drive cage.
Four equally long elastics was then put trough the holes and a knot was tied in each end.
I now had a suspended hddcage and it can actually take quite a punishment.
I had 6 drives hanging in those elastics once before i got my spinpoint F1
The next idea i got from this forum was to damp the case vibrations. A case of B!quiet dampening mats was applied to almost every naked area of steel.
I dont know how much of an impact this made but the case feels (and weighs) like a WW2 bunker now.
Sturdy as hell and it has a very "dead" ring to it when you knock on the panels.
I also got rid of the horrible plastic feet and replaced them with small rubber feet to reduce vibration in my desk.
The GFX-card is always a problem, it generates a lot of heat and with heat comes noise.
Or so i thougt, I bought a friends GFX-card that he had no more use for.
When buying graphic cards for old Athlons you need AGP cards
Those are expensive for what you get but i got a great deal from my friend.
The card is probably the fastest AGP card this system could practicly use because the CPU is no socket 754 athlon 64 monster
I dont think i would gain anything speed wise by getting a 4670 agp. Its a very nice card thou, An asus 2600PRO with custom cooling.
I dialed the fan speed down to 25% in rivatuner and made a cardboard compartment for it so it has its own ecosystem to heat up.
I also removed all the pci-brackets to get some ventilation of this compartment.
As stated above the CPU is an old Athlon 2500+ (barton core) this high end of its day powerhouse is cooled by an Spire Whisperrock with an 80mm fan.
Its a ball bearing fan but when dialed down in speedfan the noise characteristics of the fan is not all that bad i think,
no tonality that i can hear at least and its very quiet.
The dream cooler is the gargantuan Thermaltake sonic tower passively cooling the athlon.
They pop up on ebay from time to time so i might get one someday
The motherboard was once cooled by a small disgusting 40mm fan whose bearings went kaputt after like 2 years of service.
I exchanged the cooler with a passive one from an soltek board if i remember correctly. Works like a charm
As i said in the beginning of this monstrous post i have finaly arrived in nirvana!
All the mods above have been made over the last two years but yesterday i made the last one.
The latest and greatest so to say. I swapped the fan in my PSU.
The fan that was replaced had lately starting to make more and more bearing noise.
The horisontal mounting position called for another ball bearing fan and my choice fell on a 120mm ADDA running somewhere in the 1500rpm region.
The geometry of the fan was actually worse than the original fan with hub struts running more or less parallel to the blades.
The blade design was better thou with smother edges. This fan have a normal 3 wire design for motherboard connectors and i was not very entusiastic
about cutting a brand new fan so i decided to run it from the motherboard as a normal case fan with the benefit of speedcontrol from speedfan!
It works like a charm and the tonality and bearing noise is virtually gone when the fan is run at low speed.
I also removed the grill in front of the fan to remove any unwanted turbulence noise.
The problem i now faced was that speedfan could only control two fanheaders on the motherboard despite there is a total of four headers on the motherboard.
I ran the cpu fan and psu fan on the controllable headers as those were the noisiest fans and the nexus being pretty quiet even at full tillt.
I Dialed the speed down on the two controllable fans and the only thing i heard was the nexus... ... ...
GOD D`?*!#%Â¤!"IT! how was i supposed to quiet the quietest fan without speedfan.
Then i remembered a mod i did to my dads computer a few years ago which involved silencing a noisy as hell 60mm fan that ran via a molex.
Just rearange the pins in the molex socket and you get 7volts or 5 volts.
Lucky enough i had some molexes lying around because the nexus cable wasnt long enough if i was to use the molex that sat there from the beginning.
The 3 pin interface was long enough thou. So i removed the 3 pin socket from the power leads,
but kept the yellow speedsensor wire in there so i could put it in a motherboard 3 pin socket for speedmonitoring.
The power leads where then soldered to standard male molex contacts which was then put in to an empty molex connector.
I rewired the molex for some 5 volt action, put it in an empty socket and turned on the computer and here i am, sitting in what i would call silent nirvana
Some pictures of all the mayhem:
The guts in all its glory
The harddrive suspension and gigantic front intake hole
The three fans, elasticly suspended nexus and foamdampened psu and cpu fan
Externaly mounted nexus, It was to wide to fit inside
The front rubber feet and the HDD suspension rig
The GFX-card cooler in its cardboard compartment photographed through an empty PCI-bracket
The old PSU-fan, It wont be missed
The nexus is now converted to run on 5volts from the molex plug but still be able to supply an RPM-signal
A liquor store receipt standing up from the suction in the front provided by the two exhaust fans
The system in all its splendor, picturing my beautiful Dell G2410t and my very silent system
Without MikeC and all you other guys this could never be possible!