Hi , I just tried to build my new pc but it wont power up . I'm sure I wired it up correctly but I'm a little confused with the on/off power connecters . Can anyone tell me which is neg/pos , the wires are both black . I notice a small arrow/triangle on one side is this neg or pos ? Also the board has a 8 pin 12v power supply and my PSU only has a 4 pin , it says in the manual that this is fine and to use the first 4 pins , could this be the problem ? System specs are : CPU i5 4670 Haswell . MB Asrock Fatal1ty Z97X Killer . GPU GTX660 OC RAM Kingstone Hyper X @ 1866 . PSU 700W Infinity . HD Kingstone SSDNOW 300V . Please , I hope some one can help . I checked the PSU is still ok in my other pc , is there something I've missed ? EDIT : I'm a noob at this , which I realise now with the stupid NZXT case I got .
Hi PMC I presume the reason is the 12V 8 pin connector. I will try to find the handbook in the Internet and take a look into. Have you a second free 12 V with 4pin on your power supply which fit ? Edit: Have you used the pin 1 - 5 on the 8 pin 12V connector
A short research result: It should eprk also with the 4pin but only if the power consumption is not to high. Have you any acoustc signal on power on or is there no reaction ?
Sounds to me like that won't work and you don't have power. Edit: Just noticed you have a 700W power supply, you should be good.
Hmm the light comes on the GPU , this is the only sign of life , I do believe there was a beep initially but I reversed the on/of wires and don't think there is anything now
Not sure but beep codes (more then one) indicate a problem. Try to reduce the pc to a minimum of components. Change this anything?
O.K...I'll stop bugging you here but if all 8 pins aren't plugged in on your MB you won't have power.
If you give me a minute or 3 , I have to swap the 700w PSU out of the pc I'm using (I needed to test it was ok ) and put the other back in here . What do you concider minimum , no HD and disc drive ? EDIT: The manual say's using the first 4 pins is ok ,but maybe not
They should all be plugged in, I've never seen a motherboard NOT need all the pins. View attachment 13090
ask a mate in my company. He means all pins must be connected he was not 100% sure bit I think also it should be so. There are adapter available to get this 8 pin on your existing power supply. You can cut one of your old supply but the better choice is looking for an adapter.
OK still no action with no components . I will try to get an adaptor for it tomorrow ,its a bit late here ,damn time zone's . I'm still a bit concerned about the neg/pos on the power switch wires still , if someone could help with that so I can be sure . Geez I hope I haven't fried something . EDIT: If you think splining the other 4 on to the other 4 pin will work I might try it if I cant find an adapter
They appear to be , just strange they say a 4 pin is ok , but I will try . Any hints on the neg/pos wires ? Like I said there is an arrow/triangle on one side of the pins . Thanx for your help guy's , I just hope I haven't stuffed the board
Both black wires doesn't matter actually, one is an "in" and the other is the "out". I highly doubt you fried the board, it's actually quite hard to do. If it was easy I would have fried one by now.
Don't mean any offence. The power Supply is the weak link, even if it had 8 pin power it is generic crapper. They quote 700watts and 2 x 20amp on 12volt rails ............ pigs fly too. GTX660 OC you want a good single 12v rail, 500-600 Watts ( depending if you overclocking ) and 80Plus rating imho. All your other components are another class and deserve a decent power supply.
