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Dell STFU

C

ChineseBoy

Banned
How do dell computers make their computers SOoOOO QUIET


i have 2 panaflows 21dba and a Volcano 7+ at silent mode and a IBM hd and a 300W Enermax PSU

what more can i do>?????
 
Originally posted by: ChineseBoy
dynamat...

how much and where where where
Click to expand...

dynamats don't do much..

get a throttle.. (but it's already on the v7 .. so 😛

this intel p4 stock fan is really quiet..
 
Well the main causes of computer noise are:

CPU fan
Power supply
Hard drive
Case fans
Case fans

Dell makes their computer so quiet by using passive cooling where they can and by using ducting huuuuge usually passive heatsinks to minimize the amount of case fans...

There are a couple things you can do to make your computer quiter:

Get a ax-7, sk6, or gc68 heatsink and couple it with a panaflo
Mod your power supply and replace the fans and undervolt them to make them quiter
cut out any stamped case fan grills to decrease air turbulence
get a quiter hard drive like a barracuda IV(almost silent) or get a hard drive anti-vibration cage to decrease case resonance
Get a higher quality vidcard hsf combo and undervolt it
etc, etc, etc

Just some ideas. How far you can go with getting your computer quiet really depends on your system specs and how willing you are to sacrifice performance for quiet.

Myself, i got my computer (XP 1700, Geforce 2 GTS, 768MB RAM) down so quiet, the noise from my computer was being drowned out by my flourescent lamp and monitors...
Of course the price i paid was a relatively high cpu idle temp of 57C. Within spec, but a little toasty for my tastes. Im still working on a better compromise. The quest continues!
 
Dell makes their computer so quiet by using passive cooling where they can and by using ducting huuuuge usually passive heatsinks to minimize the amount of case fans...



english??
 
riight, sorry if i was not very clear about what dell does, sometimes i type too fast for my own good...i'll try again.

Alot of oems minimize costs and noise by minimizing the amount of moving parts in the computer. Dells usually only have 2 fans, both being exhaust fans. One fan is in the power supply and the other fan is a case fan. The case fan is connected to a duct whose other end rests on top of the processors heatsink. Alot of the time, the heatsink has no fan connected to it... rather it relies on this case fan\ducting system to move enough air over the heatsink to keep it cool. So, essentially the entire computer is cooled by 2 relatively quiet fans which equals a very quiet computer.

Dells cases are also relatively thick, which helps to block noise and minimize vibration...

Hope i explaied it better this time.
 
Dell keeps them silent by only having one case fan that doubles as a CPU fan (there is a duct going from cpu heatsink to the case fan). So the entire system ends up with 2 fans, this cpu/case fan and the PS fan. On top of that, both fans are inherently quiet. The airflow system in dell systems is very efficient.

Edit: didn't see DrVos' second post when I posted this
 
i understand now.. and the cpu seems to take it i guess

but wouldnt that mean that the cpu gets too hot??

using only 2 fans i felt my friends computer at the back.. it was shooting out pretty warm air compared to mine
 
That means your air circulation is not as effecient as his. If warm air is not being exhausted it either ain't producing heat or the heat is trapped inside. The only other explanation is if it moves an excessive amount of air through so that it is not heated much. In that case you are creating more noise and using more power than necessary.
 
What's a good place to buy Panaflow CPU fans? Newegg seems to only have Panaflow case fans, or are they the same thing? How difficult would it be to setup a ducting system similar to what Dell uses?
 
Originally posted by: ChineseBoy
i understand now.. and the cpu seems to take it i guess

but wouldnt that mean that the cpu gets too hot??

using only 2 fans i felt my friends computer at the back.. it was shooting out pretty warm air compared to mine
Click to expand...

I don't think many people OC their Dell's so it's prolly no big deal.

 
I don't think many people OC their Dell's so it's prolly no big deal.
Click to expand...
Well, since they program the BIOS to not allow you to overclock at all, I'd say most Dell users are not overclocking. 😉
 
FYI

Dell has been doing this for a LONG time. They started the duct system around the time the P2 went to the 100Mhz bus. I knew someone with a 450 I think.

Back when I had my 266P2, they used a heatsink that stood about 2-3 inches higher than the slot processor. They then positioned the case fan directly behind the P2... no hood at the time though.

Their cooling system (as some have pointed out) is designed to adequately cool a processor running at stock speeds, and nothing more. Come to think of it, I wonder if this is one of the reasons they have for not using AMD chips... having to design a new cooling method without adding too much noise.
 
I'm actually seriously considering making myslef a ducting system. I figure i might be able to get a 10.2cm laundry vent hose to fit in my computer and run from one of my front intakes to my cpu...
 
i put a panaflow on my volcano 7 and ill see how that goes

is the fan or label "PANAFLOW" suppose to facing the cpu so blowing on it or the opposite facing up lifting the heat away from it...
 
There are 2 arrows on the panaflo. One of them is the direction of rotation, the other is the airflow direction.
 
Of course the price i paid was a relatively high cpu idle temp of 57C. Within spec, but a little toasty for my tastes. Im still working on a better compromise. The quest continues!
Click to expand...

That's interesting...the AX7 and the Panaflo L1A that sit on my XP1600+ keep it at 46ºC at idle, and my case cooling is bad (34ºC). I managed to get a really quiet comp by unplugging my northbridge fan (used to be quiet, but now I think something's wrong with it; underneath the sink is a KT266A); using a Maxtor VL40 hard drive (underperformer, but I can't afford a Barracuda IV right now); replacing my PSU fan with a Panaflo L1A, and that's actually about it.

So, the sources of noise in my comp: L1A in power supply, L1A on top of AX7, Geforce 2 GTS-V fan, and hard drive. My CD-Rom drive is normally empty, but the spin up does get annoying. It's practically silent...except for one more "noise" source: the speakers 🙂
 
Originally posted by: ChineseBoy
How do dell computers make their computers SOoOOO QUIET


i have 2 panaflows 21dba and a Volcano 7+ at silent mode and a IBM hd and a 300W Enermax PSU

what more can i do>?????
Click to expand...

There's a new dell at work and it's amazingly quiet. I never hear it! I sometimes wonder if it crashed or it's just loading..

In my home system, I replaced both case fans and the power supply fan with panaflo's. The cpu fan is the default intel fan. I was tempted to replace my IBM harddrives, but I didn't want to lose speed or spend more money. It gets quieter when the drives go to sleep. 🙂
 
One easy way to eliminate CPU heatsink noise:

Buy an Alpha PAL8045 and strap on a sub-21dba 80mm fan. Panaflo has a few, Vantec's Stealth fan is up there. Or you could just get a "normal" 80mm model and run it at 5v.

For the PSU get an Antec TruePower, it also controls system fans.
That should make your PC barely audible. If not, something in the world of physics is screwy ...
 
That's interesting...the AX7 and the Panaflo L1A that sit on my XP1600+ keep it at 46ºC at idle, and my case cooling is bad (34ºC)
Click to expand...

Well, I was getting those cpu temps back when i had a a 5volted panaflo on my ax-7. I have since moved to a baybus setup and have adjusted the voltage to where it is on the threshold of being audible. I'm now at a much more acceptable 48C idle. My case fans as well as power supply fan are controlled by the bay bus and in "Stealth mode" as i like to call it, by case avgs around 33C.

When it comes time to play games, I turn my fans on full blast and my cpu and case temps actually tend to be lower than idle...
 
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