cable on 24pin connector is broken

magnus3142 · Jul 8, 2015

Hello, i have a trouble with boards main connector, 1 wire is loose. When i turn on pc i cant enter bios or boot windows. Also thing is i dont know from which pin this loose wire came from. Is there anything i can do about it or am i hopeless?

Saberus · Jul 8, 2015

Orange usually means a 3.3V line. If there's no empty well on the cable side, then it was tied to another cable to a single pin (Check pins 1, 2, & 13). Either way, if you can't boot the PC you should replace the PSU, there could be other wires broken in the connector. Hopefully this hasn't damaged the mobo.

mcnumpty23 · Jul 8, 2015

do you know the make and model number of the psu?

magnus3142 · Jul 8, 2015

Omg my bad, i could start pc now and its working, it was OC failure i had before it shut down.
But still where this wire comes from? Could anyone tell me? Pc working fine atm and hopefully it will.

mcnumpty23 · Jul 8, 2015

personally i wouldnt use it with that wire loose like that

magnus3142 · Jul 8, 2015

mcnumpty23 :

cooler master g750m, model is RS-750-AMAA-B1

mcnumpty23 · Jul 8, 2015

magnus3142 :

trying to find a decent image of its 24 pin connecter on the net--cant quite find one thats clear enough yet

could also try emailing cooler master and asking them

or if you have a pc store locally that sells one could get a look at it there

scout_03 · Jul 8, 2015

here is 2 link to see where the 3.3 volt yellow cable go fix it before you run in issue and burn something http://pcsupport.about.com/od/insidethepc/a/atx-pinout-24-pin-12v-psu.htm the other http://pinouts.ru/Power/atx_v2_pinout.shtml

magnus3142 · Jul 8, 2015

Saberus :

Yes i can see that it came from 13th pin. There was 2 wires, 1 thick still inside and this thin one is loose. in manual thick one is +3.3V and thin one +3.3Vs

Saberus · Jul 8, 2015

I would still replace the PSU, or at least make sure that loose cable will not short to anything, by slodering it back in or wrapping the hell out of it with electrical tape.

magnus3142 · Jul 8, 2015

scout_03 :

Ehh, hate when such things happens, also it looks like this cable was in pin 13 but i cant say 100% if i knew i could just solder these 2 cables together.
http://pinouts.ru/Power/atx_v2_pinout.shtml is it 13th?

magnus3142 · Jul 8, 2015

dude u dont replace a car because u dont have 1 wheel on it. Same here replace psu because of 1 cable...

scout_03 · Jul 8, 2015

it must be still under warranty i would ask for rma with te picture you have .

magnus3142 · Jul 8, 2015

scout_03 :

So is it supposed to be 2 wires in 13th pin? If so ill be 100% sure i can solder both wires together

scout_03 · Jul 8, 2015

orange cable are in pin 1 and 2 the other set is pins 12 and 13 so only one cable by connector and 2 not 2 in the same follow diagram of wiring .

magnus3142 · Jul 8, 2015

scout_03 :

Im not sure what u just said, i checked that diagram u sent but it says about brown wire in pin 13 and doesnt say anything about double wires in pin 1,2,12. So does it mean that this wire came from pin 13 just has orange color instead of brown?

Saberus · Jul 8, 2015

It might be from 13 or 1, either might have a smaller sense wire. This could result in unsafe conditions without the sense wire in place.

magnus3142 · Jul 8, 2015

well finally i have found that this wire is from 13pin its a sense wire that should be tied to one of 3.3V wires, in my case its from pin 13. Well now left somehow to tie them back together which is not that easy. Any suggestion?
Would be best if i could take pin out of connector and then tighten them together, but i dont have a tool to take it out.
Easier way is just to cut thick wire from 13pin and then tied them together. but im not sure of this thin sense wire should be right inside the pin or its okay if i tied it about 1-2cm from/above the pin??
What would u do in my case? (i wont buy new psu because of 1 wire)

cable on 24pin connector is broken

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