JamieH Posted September 14, 2008 Share Posted September 14, 2008 Hello, I have recently purchased a HX1000 power supply to upgrade from Hiper 580W. I installed all the connectors the same as I had with my Hiper PSU installed. The problem is when I turn on the system all the fans on all my components spin-up but the MB doesn't make a post beep noise and nothing shows on the screen. Also to add I plugged my Hiper PSU back in and I am using it now with no problems. Also on my Gigabyte mobo the ATX socket had a cover over it making it a 4-Pin I have tried it both using half the power cable on the PSU in a 4 pin config and also removing he cap and trying as an 8 pin and it still won't boot. Thanks in advance. Jamie. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted September 15, 2008 Corsair Employees Share Posted September 15, 2008 If the other PSU is working without any problems then let's get the HX1000 replaced. Please use the On Line RMA Request Form and we will be happy to replace it. Be sure to check the box that says “I've already spoken to Technical Support and/or RAM Guy.” Link to comment Share on other sites More sharing options...
JamieH Posted September 16, 2008 Author Share Posted September 16, 2008 Right okay so I have diagnosed and fixed the problem. On my motherboard there is a PCI-E 12V molex socket. With my old PSU which is a 580W Hiper Type-R I had a molex cable plugged in powering it and all was well. After looking into it further (good few hours of research) PSU's which are of a certain wattage do not need this plugged in, and therefore will not boot at all. Apparently it is on the board for better stability for Crossfire graphics setups but either the Corsair power supply is either too good it doesn't need it or just a compatibility issue. Nevertheless I won't be using Crossfire and if I did I would update my mobo to the latest PCIe 2.0 standard. So there we have it. The PSU is running fine, everything seems stable and it is only slightly louder than my old power supply which was virtually half the power. Definately a thumbs up from me. :headbang: :bling: Jamie. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted September 16, 2008 Corsair Employees Share Posted September 16, 2008 Glad to hear the issue was resolved let us know if you have any more problems! Link to comment Share on other sites More sharing options...
visualguy Posted January 18, 2009 Share Posted January 18, 2009 I have the same problem when using the HX1000W with the Intel DX58SO motherboard (see my other post on this forum). It only works when the auxiliary power is not connected. If the auxiliary power is connected, the motherboard won't initialize properly. Auxiliary power works fine with the TX750W, so the problem is specific to the HX1000W. The explanation offered above doesn't make sense to me. There must be some subtle compatibility issue. Link to comment Share on other sites More sharing options...
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