Power

  • beings
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Post 3+ Months Ago

Ok ive just bought 4 more case fans for the front of my computer because my computer runs realy hot. The guy at the store warned me that he wasnt sure my power supply could handle all my fans. heres my specs.
8- 8cms case fans (all 8 at 12 watt i believe, 2 of them could be 15 watt because 2 of the fans have lights)
- lights on front of case
1- 12watt pci slot fan
2- rom drives (1 DVD and 1 CDR)
1- floppy drive
1- harddrive 72000 rpm i believe
1- AGP 8x sapphire radeon 9600pro 256mbs
motherboard Aopen AX45-8XN with a sis 684 chipset
768 ram (1 stick 256mbs, and a double sided stick of 512 ram)
P4 2.4 Ghz

i have a cheap Icute 400 watt PSU (couldnt have been more then 30-40 dollars).
do you believe i have enough power to run all these fans?
is there a program out there that i could use to see how much Wattage i am using at the molment?
Are there any warning signs i could look out for if im using too much wattage?
if i go over the wattage amount will i do harm to my computer?
Thanks ... i know thats a lot but any advice would be helpful :P
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Post 3+ Months Ago

  • joebert
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Post 3+ Months Ago

2.4Ghz = 57.8 watts
9 * 12 = 108.0 watts
---------------------------
subTotal = 165.8 watts

I'm guessing you've got some overclocking going on if your using that many fans, that will increase the dissapation from the processor.

Using two 80mm fans pulling air out from blowholes cut in the top of the case should be more than enough to keep any case vented well enough.
How is the inside of your case looking ? Are all of your wires wrapped and tucked out of the way ? Is there anything in the path of airflow through the case ?

There should be some things you can do to better flow air through the case, too many fans can also cause problems from the air tumbling over itself trying to get out of the case while the air from another fan is pushing it somewhere else. Any chance of seeing some pictures of the case ?

Just the fans are eating 25+% of your wattage which realistically isn't 400 watts. 400 is more than likely the peak output of of that supply meaning it can push 400 for brief periods of time then ware starts to accelerate. It's like the friend that says "I jumped from a 4 story building & lived ! " he doesn't mention that he broke both of his legs & is now paralised from the waist down :wink:
  • beings
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Post 3+ Months Ago

yeah ive got some overclocking going. My case is spotless of dust and my cords are tucked out of the way as best they can. So do you think its safe to set up all that? the air is getting out of the case well, ive used a safe fog to see how it flowed. 165 watts doesnt sound like a lot when i got a 400watt psu ... even with your analogy.
  • joebert
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Post 3+ Months Ago

It should handle it, I just like really big safety margins :)
  • beings
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Post 3+ Months Ago

ok thanks dude 8)
  • beings
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Post 3+ Months Ago

i added those fans... it all seems to be working properly.
when i get my new mobo and CPU i will definately buy a new power supply

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