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12v fan at 7v, rear exhaust
- Thread starter Max 86
- Start date
- Joined
- Dec 20, 2000
- Location
- Albany, NY
I don't believe there are any harmful effects from underclocking the fan. If anything its lifespan should be increased, because it is doing less work than it is spec'ed for.
- Joined
- Dec 20, 2000
- Location
- Albany, NY
My only problem with the 7v mod is that if you need to increase your fan speed for certain circumstances, you are screwed. thats why I like the electrical and mechanical means of controlling fans.
- Joined
- Aug 13, 2001
- Location
- ft wainright
yeah it becomes a pain to open up the case and change some wires around
reohstats r much better but they cost $$
reohstats r much better but they cost $$
- Joined
- Mar 25, 2002
- Location
- Washington State
And there's always the venerable 2 speed baybus for 18.50 from these guys: http://umaxpc.com/store/product_info.php/cPath/25/products_id/38
which is cheaper than a the full on rheobus from casemod.com (although frozencpu.com has a similar rheobus for less) and costs a bit less than twice of a single pre-soldered rheostat.
K1
which is cheaper than a the full on rheobus from casemod.com (although frozencpu.com has a similar rheobus for less) and costs a bit less than twice of a single pre-soldered rheostat.
K1
- Joined
- Mar 13, 2002
- Location
- Montreal, Quebec
Buy an automotive rheostat. They are dirt cheap if you get them used.
I am using a Toyota Tercel 1993 interior light dimmer switch. Cheap and effective. I originally used only one to control 2 X 120mm 7.8 Watt fans plus 2 X 92mm 6.24 Watt fans and a delta 80mm CPU fan. That adds up to over 30 Watts. The cost of the dimmer to me was 10 canadian.
It is really simple to set up and works extremely well.
I am using a Toyota Tercel 1993 interior light dimmer switch. Cheap and effective. I originally used only one to control 2 X 120mm 7.8 Watt fans plus 2 X 92mm 6.24 Watt fans and a delta 80mm CPU fan. That adds up to over 30 Watts. The cost of the dimmer to me was 10 canadian.
It is really simple to set up and works extremely well.
- Joined
- Dec 20, 2000
- Location
- Albany, NY
Quick question. How big are they? Some auto switches end up being huge.chrismacan said:
- Joined
- Mar 13, 2002
- Location
- Montreal, Quebec
This one is small enough to fit behind a 5.25 in drive bay and not obstruct the other bays.
The actual size measures 1.375 in wide by 2.75 in long.
They get pretty warm when you run the fans at low speed. Not as hot when they run faster.
I drilled a hole in the middle of a bay cover and attached it between two cd drives. Just enough clearance to fit.
The actual size measures 1.375 in wide by 2.75 in long.
They get pretty warm when you run the fans at low speed. Not as hot when they run faster.
I drilled a hole in the middle of a bay cover and attached it between two cd drives. Just enough clearance to fit.
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