Question about CORSAIR CX Series Modular CX750M 750W ATX Power Supply

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PC Power Issue

Upon turning my PC on the motherboard light is sold green and boots up fine. However when I turn my pc off then boot it up the next day it wont start? I usually have the same issue when unplugging it and switching it off by the mains. Now I am not sure if its a PSU issue and whether I need a new one?

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It does sound like a psu problem, if you are comfortable with opening your pc then (remember to use anti static wrist band rubber matting etc) and remove the psu and give it a good dusting (as the dust does collect in on the fan and inside the unit itself (please be careful when working with this unit as it is a power unit and can be dangerous) put unit once cleaned back into the pc making sure you reconnect everything carefully. (if you are not sure rather take it to a professional as you can do some serious damage to your mother board and or peripherals. but this should give a few more boot ups ultimately you could replace it with a new PSU.

Posted on Nov 10, 2014

  • MR ROBERT BROLEY
    MR ROBERT BROLEY Nov 10, 2014

    I have removed the PSU and have tried compressed air to clean any dust and also checked my dust extractor tray which is at the bottom and its really clean. I may just replace the PSU but I am unsure of which model to go for.

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Posted on Jan 02, 2017

bronk50
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SOURCE: first boot up works fine,

Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your "((MOTHERBOARD TO THE HARD DRIVE))" make sure they have a secure connection and are not faulty or just replace them they could be faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they could be faulty a computer needs its connections to continue its cycle and have an end so any faulty leads will end up with a computer error hope this helps

Posted on May 21, 2011

  • 343 Answers

SOURCE: Hello, I recently bought a CX500

Did you check the battery on the motherboard? The battery should read 3.3 volts with a volt meter. If you don't have a meter you can try swapping the battery from another motherboard. Or have the battery checked at a Radio Shack store. Also if you still have the Seasonic try hooking it back uo temporally outside the case to check if it is a power supply issue. If the old power supply failed while being connected to this motherboard it could have damaged it.
Thanks for using FixYa

Posted on Jul 02, 2011

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