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PSU and Motherboard issue

Tags:
  • Cooler Master
  • MSI
  • Motherboards
  • Components
  • CPUs
Last response: in Components
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November 7, 2013 2:29:56 PM

Hi,
I have an motherboard MSI 770-c45(http://www.msi.com/product/mb/770-C45.html) and new CoolerMaster RS500-ACAB-M3. Main problem is that motherboard have 4pin cpu connector, and PSU have 8(4+4), i separate 8 pin to 4+4 and attach 4pin to motherboard. When i start pc its like the motherboard dont have enough power, graphic card fan not working, and only 1led of 4 is blinking. With old Psu all 4 led are blinking. I meassure voltage of psu and its 12v on both(CPU 4+4)pins.
Can anyone help me?
Thank you in advance!

More about : psu motherboard issue

November 7, 2013 2:53:32 PM

2x4b said:
You also have to plugin the 24 pin power connector. (From Page 15 of the motherboard's manual http://www.msi.com/product/mb/770-C45.html#/?div=Manual )


Thank you for fast answer,
I know that :)  i attach 24pin power connector to motherboard. Its not my first time changeing psu.
I try to use old psu and everything work properly.
I have doubts becase my old psu have all 24pins, and this new CoolerMaster have 1pin less(its empty).

Now i measure 24pin, molex and cpu pins with multimeter, and everythink is ok.

Is there any safety switch in PSU, dont know what to do, everything look ok, but cant start motherboard.
Anyone, help ? :S
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