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Author Topic: Time to silence my Pegasos2!  (Read 1855 times)

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Offline eliyahuTopic starter

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Time to silence my Pegasos2!
« on: January 29, 2013, 03:46:24 PM »
folks,

i love my pegasos2 system and use it most of every day -- but there is one thing that drives me crazy having gotten used to a SAM: noise. my SAM was totally silent, but this thing, well, it ain't. so it's time to shut the thing up a little. ;)

i think we can narrow down the culprits to the following components:

1.  power supply fan
2.  case fans
3.  IDE hard disk
4.  the processor fan
5.  the radeon 9000 GPU fan

now #3 is easy enough: replace the thing with a SATA hard disk or even an SSD if i can find one for a reasonable price. as for the rest, well, that's what i'm hoping you can help with. i'm looking for recommendations to replace my power supply with something quiet. the processor fan is the one glued on there by genesi back in the day and the radeon 9000 pro has a fan put on by sapphire; i'd really like to replace both of them too since they're noisy. any ideas? maybe there is a 9000 pro with passive cooling like the 9250 in my SAM?

everything is currently in a silverstone FT-03 mini tower, by the way. the system runs with a G4 processor at 1 GHz, a radeon 9000 pro video card, SATA2 card, USB2 card, and prism2 wireless card.

fire away. with your suggestions, i mean. :p

-- eliyahu
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Offline commodorejohn

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Re: Time to silence my Pegasos2!
« Reply #1 on: January 29, 2013, 05:24:37 PM »
I have a Radeon 9000 in my Power Mac G4 that's passively cooled, there doesn't seem to be any trouble with it. As for the case fans, is there room in the case for larger, lower-RPM fans? I find those to be much quieter for the same amount of cooling power, especially if you can get ones with more blades.
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Offline Damion

Re: Time to silence my Pegasos2!
« Reply #2 on: January 29, 2013, 06:47:48 PM »
Seasonic S12II series PSU would be my choice, plenty of deals out there too as they're being phased out by newer models. They're essentially silent, and very good quality (all Japanese capacitors). I've had several of the S12 and S12II models still running strong after years of use.
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Offline Kronos

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Re: Time to silence my Pegasos2!
« Reply #3 on: January 29, 2013, 08:18:27 PM »
Well, my remaining Peg has a normal 3.5 IDE HD which is silent enough, some fanless Radeon9250 a fanless PSU and no fan on the G4 !!

Well o.k. there is a gigantic heatpipe+radiator on the G4 and super-slow 120mm fan directly behind (read thats the only fan in there).

Ran for years without issue.
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Offline som99

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Re: Time to silence my Pegasos2!
« Reply #4 on: January 29, 2013, 08:37:34 PM »
Tell me the dimensions of the fans and ill find you quiet good fans to replace with, no need for a new PSU if you can use a quiet fan.
As for the radeon 9000, I would buy a bigger heatsink, then either drill holes for mounting or use a permanent thermal adhesive compound. Then see how hot it runs and if you need to there are quite silent 40mm fans from Fractal Design.
You could steal a heatsink from any old GFX card and make it fit or use PC chipset cooling on it.

As for the PSU. I guess you have an 80mm fan inside it?
Then go for either the "Be quiet! shadowwings SW1" (its only 8,4dB) or Fractal designs Silent series (11dB) and your PSU runs like a breeze :)

Sam go for the case fans, switch them for decent low noise fans with decent cfm (airflow), cant recommended any chassi fans without knowing the size of the current ones.
As for the CPU, tell me the dimensions of the current heatsink, I guess you could quite easily fit a decent PC chipset heatsink with a low noise fan on and get it to run cooler then original.
« Last Edit: January 29, 2013, 08:39:38 PM by som99 »
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Offline Iggy

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Re: Time to silence my Pegasos2!
« Reply #5 on: January 30, 2013, 04:21:17 AM »
As I prepare to move from an MDD Powermac (pretty noisy) to a G5 Powermac (really noisy), I envy you guys.
I don't know if its possible to significantly lower the noise output of a G5.

Ah well, at least my Powerbook is pretty quiet.
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Offline eliyahuTopic starter

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Re: Time to silence my Pegasos2!
« Reply #6 on: January 30, 2013, 02:53:52 PM »
@thread

thanks for the replies, guys. i think i'll be starting with replacing the PSU with one of the 'silent' fractal design jobs and getting rid of the (suprisingly noisy) IDE drive i use for booting purposes, going to a quiet SATA drive using an IDE-to-SATA converter. i've found a few radeon 9000 pro cards with passive cooling, but they either come with mac BIOS or only have 64MB of VRAM. so they'd be a downgrade. i'll keep hunting.

i've given serious thought to replacing the peg2 with a SAM460. once W3D drivers ship for radeonHD video cards the little board will scream -- accept that video playback isn't accelerated in any way, so, i still don't know if i want to take the plunge. a G4 is so much more performant than an AMC PPC460 -- but the SAM460 feels so much faster when being used for anything other than video/games.

oh well. i'll let the board know how my 'silencing' work goes. hopefully when i take to amiwest this autumn it will be much quieter than it was last year. :)

-- eliyahu
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Offline eliyahuTopic starter

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Re: Time to silence my Pegasos2!
« Reply #7 on: January 30, 2013, 02:53:56 PM »
@thread

thanks for the replies, guys. i think i'll be starting with replacing the PSU with one of the 'silent' fractal design jobs and getting rid of the (suprisingly noisy) IDE drive i use for booting purposes, going to a quiet SATA drive using an IDE-to-SATA converter. i've found a few radeon 9000 pro cards with passive cooling, but they either come with mac BIOS or only have 64MB of VRAM. so they'd be a downgrade. i'll keep hunting.

i've given serious thought to replacing the peg2 with a SAM460. once W3D drivers ship for radeonHD video cards the little board will scream -- accept that video playback isn't accelerated in any way, so, i still don't know if i want to take the plunge. a G4 is so much more performant than an AMC PPC460 -- but the SAM460 feels so much faster when being used for anything other than video/games.

oh well. i'll let the board know how my 'silencing' work goes. hopefully when i take to amiwest this autumn it will be much quieter than it was last year. :)

-- eliyahu
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