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Old 05-31-08   #1 (permalink)
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Default Safe to use USB Laptop power as a charger for a pocket pc?
Well transformed a USB cabe to be able to power my pocket pc, and I am wondering will it be safe to let it charge a pocket pc with like a 400mhz CPU? and is there anyway to increase the amperage on a usb?

also its connected direct to mobo

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Old 05-31-08   #2 (permalink)
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yes it should be fine, some manufacturers(belkin) make USB cables to charge Pocket Pc and phones, I have one for my HTC TyTn II and its all good.
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Old 06-08-08   #3 (permalink)
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sorry to ask questions here... but how about using the laptop USB port to power 2 120mm case fans? (wanted to make a laptop cooler for my laptop)
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Old 06-08-08   #4 (permalink)
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sorry to ask questions here... but how about using the laptop USB port to power 2 120mm case fans? (wanted to make a laptop cooler for my laptop)
Very common for laptop coolers on the market to be powered by the laptop's USB port; so it'll work no sweat.
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Old 06-08-08   #5 (permalink)
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sorry to ask questions here... but how about using the laptop USB port to power 2 120mm case fans? (wanted to make a laptop cooler for my laptop)
USB provides .5A at 5v (2.5w) 120mm fans usually are 12v with a 7v startup (sometimes lower). Power consumption at 12v is usually 3-8w.
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Old 06-09-08   #6 (permalink)
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USB provides .5A at 5v (2.5w) 120mm fans usually are 12v with a 7v startup (sometimes lower). Power consumption at 12v is usually 3-8w.
so u think it is not a good idea to use usb port to power 120mm fans?
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Old 06-09-08   #7 (permalink)
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so u think it is not a good idea to use usb port to power 120mm fans?
to cool a lappy use smaller and higher CFM fans on a fan controller. that way you can keep the power draw to a minimum
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Old 06-09-08   #8 (permalink)
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i agree with killa. probably thin 60-92mm fans should work fine. delta's if you're a baller
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Old 06-09-08   #9 (permalink)
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just thought i can make use of those extra 120mm case fan i am gonna have by this weekend (new slipstream is waiting )
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