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Alan
12-07-2003, 03:22
For those of you who have any remaining interest in my pursuit of a silent PC read on for a tale of woe...

To recap, I changed my IT7 Max2 with passive North Bridge, 2.6GHz P4B and a fanless Zalman heatsink cooled Radeon 9500 Pro, for an IC7-G with an active north bridge, 3GHz 'C' P4 (still with a Zalman 7000) and a Radeon 9800 Pro which has a fairly quiet fan (Hercules version).

The previous spec. was very quiet a little sound of rushing air but that was it - I don't mind the sound of moving air as long as it's fairly low.

But the temperatures have gone crazy. Even before I changed the Radeon 9500 Pro for the 9800, the CPU temperature was 50ºC at idle and the north bridge at 39ºC. It wasn't just inaccurate temperature sensors 'cos I have the Lian-Li sensors taking ambient within the case and the Zalman PSU kept on running it's fan fairly high - something it rarely did with the old spec.

I finally decided that there wasn't enough exhaust speed on the rear Papst fan and changed it for the Titan aluminium fan - it whines. I then tried the Kustom blue LED fan with the three temperature settings. It quickly ramped up the speed and it made a terrible racket - again mechanical whine. I disconnected it, now the only fans on are the Zalman PSU (at low speed), the Zalman 7000 HSF (cut down to 2,000rpm from 2,650), the north bridge fan and the Hercules fan and it's bearable again.

But the temperatures (after only web browsing - nothing else) are 52ºC on the CPU and 40ºC on the North Bridge. Ambient temperatures just above the graphics card is 38ºC and at the side of the CPU HSF, 37ºC. If I take the side off the case, the CPU temperature falls to 46ºC.

Why did I do it? The original set up ran everything I wanted, was silent and had reasonable temperatures. My Matrix Orbital sits there, flashing these horrible temperatures in regular remonstration!! I haven't ONCE, since upgrading, dared to try the slightest overclock!?

Boys and Girls, if your rig serves your needs properly, don't bother changing it just to be faster for the sake of it! Think of me muttering at two in the morning, cursing my expensive machine, say to yourself "what a muppet that old fart is" and promise yourself that you will buy 'cos you need, not 'cos you want!!!!!

(Er.. Graeme, I'll be on to you for another order soon... :o :o )

Creosote
13-07-2003, 06:30
You have my sympathies Alan.
I really don't believe that its possible to build a high spec PC and make it silent, quiet - yes, but silent - no.
The attempt to achieve silence is a worth-while endeavour, and its one that I have been trying to achieve, but it just aint possible.

[M]uuhh
13-07-2003, 07:07
I hate the sound of fans! after the first 10 mins it makes me fill like i have a "Smart Fan 2" drilling into my brain!

But it’s only likely to get worse. As processing power flys ahead so fast can you imagine what the next gen CPUs will need to keep cool?

Lord Avatar
13-07-2003, 15:16
Originally posted by Creosote
You have my sympathies Alan.
I really don't believe that its possible to build a high spec PC and make it silent, quiet - yes, but silent - no.
The attempt to achieve silence is a worth-while endeavour, and its one that I have been trying to achieve, but it just aint possible.

There is. ;)

Look at this new product coming out from Zalman, a case that truly acts as a giant heatsink.

http://www.watch.impress.co.jp/akiba/hotline/20030712/etc_tnn500a.html

It's unreadable but the clickable pictures give you the general idea.

Creosote
13-07-2003, 15:29
Interesting.

I think Graeme needs to be getting one of those and testing it.
IF it works he has at least one customer!

I still have some doubts though. There are a lot of components generating heat inside a system case, the HD for example, and that heat needs to get from the air inside this case to the case itself. I just cant see how the case could conduct the heat away froma "stagnant" non-circulatory air pool fast enough without some sort of fans inside.

I'm also still not convinced about HD sound and CD Rom drives. I have the quietest HD that Graeme and Thomas could find, encased inside a Silentdrive, inside a Coolermaster that has QuietPC noise reduction foam kit installed and I can STILL hear the HD accessing the disk. Its quite faint, more akin to a "bubbling" noise than a raucous HD mechanism, but its there.
The CDs are fairly quiet except when spinning up and then they are very noisy.

I think there is more to the silent system than finding ways to reduce fans, ALL the mechanical components need to be silent.

Alan
13-07-2003, 16:16
I think you are a bit over demanding. Intermittent noise is all right - such as a CD ROM accessing - or a hard drive, after all they are not permanent.

It's permanent noise we want to kill surely?

Creosote
13-07-2003, 18:37
HD accessing - intermittent??!!!!!!
Its accessing all the friggin time, maybe I should bask in the lack of HD noise fo rthe second duration between accesses!!!

Alan
13-07-2003, 20:39
Why? I rarely hear my hard drive. For instance, if I spend twenty minutes browsing these forums, when is the hard drive used?

If I spend half an hour playing Freecell, when is the hard drive used (apart from loading)?

It must be the kind of software you use then.

Creosote
13-07-2003, 21:03
Yes, its called XP :)

Alan
13-07-2003, 22:26
Ah!