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Install a Power Supply

Last response: in Components
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April 30, 2013 5:47:50 PM

hello guys

i bought this PSU corsair cx 500w and I've Dell Optiplex 790 the desktop version
black cable is it changeable ?

http://i.imagebanana.com/img/a6o7s7gf/2.JPG

it comes from

http://i.imagebanana.com/img/dpjqtyq4/7.JPG

and it is connected to the motherboard

http://i.imagebanana.com/img/c9hd90u2/3.JPG

also what is this red and black wires ?

http://i.imagebanana.com/img/stiri4ei/8.JPG

More about : install power supply

a b ) Power supply
April 30, 2013 5:54:08 PM

The red and black wire is you case speaker.gives CMOS beep info if there a mb failure. Some mb vendors use non standard plugs. On the new ps the pci power plug is eight pin cable that can be snapped to two four pin plugs.
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April 30, 2013 5:59:22 PM

smorizio said:
The red and black wire is you case speaker.gives CMOS beep info if there a mb failure. Some mb vendors use non standard plugs. On the new ps the pci power plug is eight pin cable that can be snapped to two four pin plugs.


thank you for your quick response
is it safe to unplug The red and black wire , i don't need the case speaker
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a b ) Power supply
April 30, 2013 6:03:30 PM

The thick black wire is your front panel input cable. It is properly connected to your MB for your start and reset buttons, a HD usage indicator light and the USB jacks. The red and black wire is the speaker wire for BIOS beep codes. Leave them both attached, they are of no concern with installing your new power supply. You will likely have a 4 or 8 pin connector near your CPU, don't forget to connect it or your computer won't work!
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April 30, 2013 6:10:37 PM

avjguy2362 said:
The thick black wire is your front panel input cable. It is properly connected to your MB for your start and reset buttons, a HD usage indicator light and the USB jacks. The red and black wire is the speaker wire for BIOS beep codes. Leave them both attached, they are of no concern with installing your new power supply. You will likely have a 4 or 8 pin connector near your CPU, don't forget to connect it or your computer won't work!


Thank you very much for your help. Really appreciated
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!