Replacing failing Scythe Slipstreams - Opinions?

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NyteOwl
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Replacing failing Scythe Slipstreams - Opinions?

Post by NyteOwl » Thu Apr 05, 2012 2:04 pm

I have a P-182 that is currently cooled using Scythe Slipstreams.

(top, rear and CPU heatsink (HR-01) are 800 rpm, front and lower compartment are 1200 rpm)

All fans are about 3.5 years old. Within the last two or three months, the CPU fan, front fan and top fan have started to fail with speeds dropping to 100-400rpm (occasionally to 0 or not starting at all with out a little help). The top one is understandable as sleeve bearing fans don't do that well mounted horizontally.

All fans are currently running off the motherboard fan headers (but without motherboard speed control enabled).

I was considering replacing all fans with either Noctuas (non-PWM) or Scythe Gentle Typhoons.

Opinions, or alternative suggestions welcome.

ces
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Re: Replacing failing Scythe Slipstreams - Opinions?

Post by ces » Thu Apr 05, 2012 3:43 pm

Get one Nexus and one Noctua. Experiment with them. Then decide that your third fan should be. I would expect that Noctua to be long lived in a horizontal position.

lodestar
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Re: Replacing failing Scythe Slipstreams - Opinions?

Post by lodestar » Thu Apr 05, 2012 9:41 pm

With PWM control you could reduce the number of fans you currently have. For example, instead of top, rear and CPU you could consider a Noctua NF-F12 PWM 120mm Focused Flow on the CPU and a Noctua NF-P12 PWM 120mm for the rear. Noctua supply a PWM sharing cable which you can use to link the CPU and rear fans. The PWM fans are clearly going to idle some way below 800 rpm. They might well go over 800 rpm under load. You could compensate for this by removing the top fan entirely and covering the opening. Of the remaining Slipsteams you could move the lower compartment 1200 to the front fan position, and move the 800 rpm from the rear to the lower compartment. If you put the front 1200 rpm front fan under motherboard control it would give a quieter idle.

mkk
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Re: Replacing failing Scythe Slipstreams - Opinions?

Post by mkk » Fri Apr 06, 2012 4:12 am

Try lubricating the motor of one of them if you have the time, just to see if that's all it takes.

Otherwise when buying fans I always look at at the affordability factor. Unless a fan sits in a place where it's a chore to replace it doesn't seem reasonable to me to get a fan that costs several times more than a perfectly useable cheap one. As long as it fits the accoustic target of course which is the paramount factor. Unless one is building a system for someone else that is likely to both having it running unchanged for many years and not be quite so picky about the noise. Then there are more rugged stock fans that makes a bit more noise but remain fairly inexpensive.

kuzzia
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Re: Replacing failing Scythe Slipstreams - Opinions?

Post by kuzzia » Fri Apr 06, 2012 8:51 am

If you're on a budget, or don't need the best cooling performance, then you could consider the Arctic Cooling F12 PWM fan. cheap PWM fans that have built-in PWM splitters.

ces
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Re: Replacing failing Scythe Slipstreams - Opinions?

Post by ces » Fri Apr 06, 2012 9:45 am

mkk wrote:Try lubricating the motor of one of them if you have the time, just to see if that's all it takes.
Here is how to lubricate the fans
viewtopic.php?p=541788#p541788

Tzeb
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Re: Replacing failing Scythe Slipstreams - Opinions?

Post by Tzeb » Fri Apr 06, 2012 11:38 am

Take the blades off, clean everything, lubricate with something recommended in the quetes posted by ces in his thread and it will be like new.

It takes 3 minutes / fan.

http://www.instructables.com/id/How-to- ... /?ALLSTEPS

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